The fraction Bret needs to turn the logo is 1 / 2.
How to find the fraction Bret needs to turn the logo?Bret needs to put a logo on a business card. He prints the logo the wrong way up by mistake. Bret needs to turn the logo the correct way up.
Therefore, the fraction he needs to turn the logo can be represented as follows:
For a complete turning, it will be 360 degrees. according to the diagram he has already turned the logo 180 degrees.
Therefore, for Bret to turn the logo correctly, he needs to turn it 180 degrees.
Hence, the fraction he needs to turn the logo is as follows:
180 / 360 = 18 /36 = 1 / 2
Hence, Bret needs to turn the logo half way(1 / 2)up.
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Use the parabola tool to graph the quadratic function f(x) = -√² +7.
Graph the parabola by first plotting its vertex and then plotting a second point on the parabola HELP ME PLEASEEE
Using the two points you have plotted, draw the parabola. It should look like a downward-facing curve opening at the vertex (0, 7).
What is parabola?
A parabola is a symmetrical, U-shaped curve that is formed by the graph of a quadratic function.
Assuming you meant [tex]f(x) = -x^2 + 7[/tex], here's how you can graph the parabola using the parabola tool:
Find the vertex
The vertex of the parabola is located at the point (-b/2a, f(-b/2a)), where a is the coefficient of the [tex]x^2[/tex] term and b is the coefficient of the x term. In this case, a = -1 and b = 0, so the vertex is located at the point (0, 7).
Plot the vertex
Using the parabola tool, plot the vertex at the point (0, 7).
Plot a second point
To plot a second point, you can choose any x value and find the corresponding y value using the quadratic function. For example, if you choose x = 2, then [tex]f(2) = -2^2 + 7 = 3[/tex]. So the second point is located at (2, 3).
Therefore, Using the two points you have plotted, draw the parabola. It should look like a downward-facing curve opening at the vertex (0, 7).
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Complete Question:
Use the parabola tool to graph the quadratic function.
f(x) = -√² +7
Graph the parabola by first plotting its vertex and then plotting a second point on the parabola.
Rachel bought a framed piece of artwork as a souvenir from her trip to Disney World. Diagnosed with the frame is 25 inches the length of the frame is 17 inches greater than its width. Find the dimensions as a frame
The dimensions of the rectangular frame is found as : 12 and 6 inches.
Explain about the Pythagorean theorem?When a triangle is just a right triangle, the hypotenuse square is equal to the sum of the squares of the triangle's legs.
That's a picture frame, therefore pay attention that it must be rectangular.
Hence, the triangle is really a right triangle, and the Pythagorean theorem will eventually be applied.
You are aware that the square of the hypotenuse is 20 and equals 400.
hence, a² + b² = 400 and...
So because length is 4 times more than the breadth, a = b + 4.
This can be resolved if "b + 4" is substituted for "a":
(b + 4)² + b² = 400,
(b + 4)(b + 4) + b² = 400,
b² + 8b + 16 + b² = 400,
2b² + 8b = 384
Further solving;
b² + 4b = 192
b² + 4b - 192 = 0
(b + 16)(b - 12) = 0
Due to the fact that a length cannot be negative, b must therefore be between b - 16 or 12 (negative value not taken)
The second leg is 12 + 4 = 6.
Thus, the dimensions of the rectangular frame is found as : 12 and 6 inches.
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Debra is shopping for a king-size mattress. The mattress has a wholesale price of $359.00
Debra can go to a specialty store that she knows has the mattress. This specialty store marks up the wholesale price by 40%
. Ignoring tax, how much would Debra pay for the mattress at the specialty store?
Answer:
If the wholesale price of the king-size mattress is $359.00, and the specialty store marks up the price by 40%, the price Debra would pay at the specialty store is:
Wholesale price + Mark-up amount = Price at specialty store
$359.00 + 40% of $359.00 = $359.00 + $143.60 = $502.60
Therefore, Debra would pay $502.60 for the mattress at the specialty store.
24 356 ÷ 5 using long division.
Answer:
24 356 ÷ 5 using long division.
Step-by-step explanation:
See the image
What is the balance after 2 years on a CD with an initial investment of $1,800.00 and a 2.3% interest rate? A. $1,804.60 C. $1,882.80 B. $1,883.75 D. $4,140.00
Step-by-step explanation:
The formula for calculating the balance on a CD (Certificate of Deposit) after a certain amount of time is:
A = P(1 + r/n)^(nt)
Where: A = the ending balance P = the principal (initial investment) r = the annual interest rate (as a decimal) n = the number of times interest is compounded per year t = the time in years
In this case, the initial investment is $1,800.00, the annual interest rate is 2.3% (or 0.023 as a decimal), and the investment period is 2 years. Assuming that the interest is compounded annually, we can substitute these values into the formula:
A = 1800(1 + 0.023/1)^(1*2) A = 1800(1.046729) A = 1883.12
Rounding to the nearest cent, the ending balance after 2 years on the CD is $1,883.75 (option B). Therefore, option B is the correct answer.
11. Find the missing dimension of the rhombus.
(Hint: Use the formula A = bh.) (Lesson 1)
Answer: The missing dimension of the rhombus in the given figure is Height of rhombus h h=A/b=90/15= 6cm. so missing dimension is h=6cm
What is Dimension ?
In general, dimension refers to the measurement or size of an object, space, or quantity along a particular axis or direction. In mathematics, dimension refers to the number of coordinates needed to specify a point in a space.
What is Rhombus ?
A rhombus is a type of quadrilateral (a four-sided polygon) in which all four sides are of equal length. It is a special case of a parallelogram in which the opposite sides are parallel to each other, and its opposite angles are equal.
In the given question,
area of rhombus is A=b*h so it can be rewritten as h=A/b by substituting values given in question we get h= 6cm
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2. The directions for sewing a scarf says that you must purchase 1.75 yards of fleece
fabric. The cost per yard is $10.30. How much will you need to spend on fleece fabric?
Answer:
$18.03
Step-by-step explanation:
10.30 x 1.7 = 18.025
round answer to 18.3
Answer: $18.03
Step-by-step explanation:
1.75 x 10.3 = 18.025
18.025 ≈ 18.03
Uniform Questions:
Australian sheepdogs have a relatively short life. The length of their life follows a uniform distribution between 8 and 14 years.
Questions:
What is the probability that a sheepdog will live at least 10 years?
What is the probability that a sheepdog will live no more than 11 years?
What is the probability that a sheepdog will live between 10 and 13 years?
Australian sheepdogs' life length follows a uniform distribution between 8 and 14 years.
a) The probability that a sheep dog will live at least 10 years, P( X ≥10) is equals to the 1/3
b) The probability that a sheepdog will live no more than 11 years, P( X ≤11) is equals to the 1/2.
c) The probability that a sheepdog will live between 10 and 13 years, P(10≤X≤13), is equals to the 1/2
In statistics, uniform distribution,is a distribution function where every possible result is equally likely, i.e., the probability of each event occurring is the equal. Here we have the length of Australian sheepdogs life follows a uniform distribution between 8 and 14 years. So, the probability distribution function, pdf for uniform distribution is f(x) = 1/(b - a), a<x<b , a= 8 , b = 14
=> f(x) = 1/(14 - 8) = 1/6
Area of uniform distribution= height × base and base = 14 - 8 = 6
height of uniform distribution is = 1/( Max - Min) = 1/6.
a) the probability that a sheepdog will live at least 10 years, P(X ≥10)= 1 - P(X< 10)
The cumulative distribution function in uniform distribution is P(X ≤ x) = (x − a)/(b − a) so, P( X < 10) = (10 - 8)/(14 - 8)
= 2/6 = 1/3
b) the probability that a sheepdog will live no more than 11 years, P( X ≤11)
= (11 - 8)/( 14 - 8)
= 3/6 = 1/2
c) In uniform distribution, P(c ≤ x ≤ d)
= (d-c)/(b- a)
The probability that a sheepdog will live between 10 and 13 years, P( 10≤X≤13), c = 10 , d = 13 , b = 14 , a = 8
=> [tex]P( 10≤X≤13) = \frac{d-c}{b- a} = \frac{13 - 10}{14 - 8} [/tex]
= 3/6 = 1/2
Hence required probability value is 1/2.
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Complete question:
Uniform Questions:
Australian sheepdogs have a relatively short life. The length of their life follows a uniform distribution between 8 and 14 years. Questions:
a)What is the probability that a sheepdog will live at least 10 years?
b)What is the probability that a sheepdog will live no more than 11 years?
c)What is the probability that a sheepdog will live between 10 and 13 years?
Distance in the coordinate plane iready
Answer:
Distance in the coordinate plane iready
Step-by-step explanation:
Sure, I can help with distance in the coordinate plane!
The distance between two points (x1, y1) and (x2, y2) in the coordinate plane can be found using the distance formula:
d = √((x2 - x1)^2 + (y2 - y1)^2)
Here's an example:
Let's say we want to find the distance between the points (3, 4) and (6, 8).
We can plug these coordinates into the distance formula:
d = √((6 - 3)^2 + (8 - 4)^2)
Simplifying the expression inside the square root:
d = √(3^2 + 4^2)
d = √(9 + 16)
d = √25
d = 5
Therefore, the distance between the points (3, 4) and (6, 8) is 5 units.
if the volume of a cube is 125 cm what is its surface area
Answer:
150
Step-by-step explanation:
Using the formulas
A=6a2
V=a3
Solving forA
A=6V⅔=6·125⅔ ≈150
Answer:
Step-by-step explanation:
If the volume of a cube is 125 cm³, it means that each side of the cube measures 5 cm (since 5 x 5 x 5 = 125).
To find the surface area of the cube, we need to calculate the area of each of the six faces and add them together.
The area of each face is simply the length of one side squared (or side x side).
So, the surface area of the cube would be:
6 x (5 cm x 5 cm) = 6 x 25 = 150 cm²
Therefore, the surface area of the cube is 150 cm².
In the following alphanumeric series, what letter comes next? V, Q, M, J, H, …
According to the given information, the letter that comes next in the given alphanumeric series is "N".
What is alphanumeric series?
An alphanumeric series is a sequence of letters and/or numbers that follows a certain pattern or rule. For example, "A, B, C, D, E..." is an example of an alphabetical series, and "1, 3, 5, 7, 9..." is an example of a numerical series. An alphanumeric series may combine both letters and numbers, such as "A1, B2, C3, D4, E5...". The pattern or rule followed by an alphanumeric series may be based on numerical or alphabetical order.
The given series V, Q, M, J, H, ... follows a pattern where each letter is the 6th letter from the previous letter. So, the next letter in the series would be 6 letters after H, which is N.
Therefore, the letter that comes next in the given alphanumeric series is "N".
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Given the diagram below and the fact that KH is a perpendicular bisector of IG, which of the following statements must be true?
A) IJ ≅ JG
B) EI ≅ JH
C) EK ≅ JG
Answer:
A
Step-by-step explanation:
Congruent triangles
Answer:
A) IJ is congruent (equally long) to JG.
Step-by-step explanation:
KH splits IG and EF each into 2 equal halves.
the other answer options compare not-correlating distances, and so, they are not surprisingly not equally long.
The standard deviation of the scores on a skill evaluation test is 497
points with a mean of 1754
points.
If 302 tests are sampled, what is the probability that the mean of the sample would differ from the population mean by less than 44
points? Round your answer to four decimal places.
Answer:
497/√302 = 49.7
z-score = (44-0)/49.7 = 0.88
Probability = 0.8133
Help me please.
Whoever answers right gets brainliest
500 green hats made in 2 hours how many would be made in 40 hours
Answer:
10,000
Step-by-step explanation:
The first step is to divide 500 hats by 2 hours (500 ÷ 2 = 250)
Second, multiply 250 hats by 40 hours (250 x 40 = 10,000)
Complete the recursive formula of the geometric sequence 10, 6, 3.6, 2.16, ....
a(1) = a(n) = a(n − 1).
The common ratio (r) of this geometric sequence is found by dividing any term by its preceding term, such as:
r = a2/a1 = 6/10 = 0.6
We can use this common ratio to find any term in the sequence using the recursive formula:
a(n) = r * a(n-1)
where a(1) is the first term in the sequence, a(n) is the nth term, and a(n-1) is the (n-1)th term
Using this formula, we can find any term in the sequence. For example:
a(2) = r * a(1) = 0.6 * 10 = 6
a(3) = r * a(2) = 0.6 * 6 = 3.6
a(4) = r * a(3) = 0.6 * 3.6 = 2.16
and so on
Therefore, the complete recursive formula for this geometric sequence is:
a(n) = 0.6 * a(n-1), where a(1) = 10 and a(n) = a(n-1) for all n > 1
In the diagram below, MN is parallel to JK. If MN=10,LK=7.2, JL=13.2, and LN=6.find the length of JK. Figures are not necessarily drawn to scale.
The length of JK is 18.333.
Since MN is parallel to JK, the angles formed by JLN and MLK are equal. Therefore, we can use the Triangle Proportionality Theorem, which states that if a line parallel to one side of a triangle divides the other two sides proportionally, then the triangles are similar.
Using the Triangle Proportionality Theorem, we can set up the following proportion:
[tex]$\frac{LK}{JL} = \frac{MN}{LN}$[/tex]
Therefore,
[tex]$\frac{7.2}{13.2} = \frac{10}{6}$[/tex]
We can cross-multiply to solve for JK:
[tex]$7.2 \cdot 6 = 13.2 \cdot 10$\\$43.2 = 132$\\$JK = \frac{132}{7.2} = 18.333$[/tex]
Therefore, the length of JK is 18.333.
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A triangular prism has height 20 cm.
Its triangular face has base 7 cm and height 10 cm.
A. what is the volume of the prism?
B. suppose you triple the height of the prism.what happen to the volume?
C. suppose you triple the base of the triangular face.what happen to the volume?
D. suppose you triple the height of the triangular face.what happen to the volume?
E. suppose you triple all 3 dimensions.what happen to the volume?
Answer:
A. The volume of the triangular prism can be calculated using the formula V = (1/2)bh × h, where b is the base of the triangular face and h is the height of the prism. Thus, V = (1/2)(7 cm)(10 cm) × 20 cm = 700 cubic centimeters.
B. If the height of the prism is tripled to 60 cm, then the new volume would be V' = (1/2)(7 cm)(10 cm) × 60 cm = 2100 cubic centimeters. Thus, the volume is tripled.
C. If the base of the triangular face is tripled to 21 cm, then the new volume would be V' = (1/2)(21 cm)(10 cm) × 20 cm = 2100 cubic centimeters. Thus, the volume is tripled.
D. If the height of the triangular face is tripled to 30 cm, then the new volume would be V' = (1/2)(7 cm)(30 cm) × 20 cm = 2100 cubic centimeters. Thus, the volume is tripled.
E. If all three dimensions (base, height of triangular face, and height of prism) are tripled, then the new volume would be V' = (1/2)(21 cm)(30 cm) × 60 cm = 18900 cubic centimeters. Thus, the volume is multiplied by a factor of 27.
it looks as if the graphofr ~ tan 0, -'1r/2 < 0 < '1r/2, could be asymptotic to the lines x ~ i and x ~ -i. is it? give reasons for your answer.
No, the graph of tan 0, -1r/2 < 0 < 1r/2, is not asymptotic to the lines x = i and x = -i.
An asymptote is a line that a graph approaches but never crosses. The graph of tan 0, -1r/2 < 0 < 1r/2, has a period of π, meaning it repeats after every π, and will never cross the lines x = i and x = -i. This can be seen in the equation y = tan 0, where the x-values of -1r/2 and 1r/2 are replaced with the x-values of i and -i. The equation would be y = tan(i) and y = tan(-i), and the graphs of these equations would not be asymptotic to the lines x = i and x = -i.No, the graph of tan 0, -1r/2 < 0 < 1r/2, is not asymptotic to the lines x = i and x = -i.
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In the regular decagon pictured, what is the length of QR?
A) 7
B) 9
C) 8
Answer:
8
Step-by-step explanation:
Each side of the. decagon is equal so each side is 8
Use the shell method to set up and evaluate the integral that gives the volume of the solid generated by revolving the plane region about the y-axis. (Round your answer to three decimal places.)
Answer:
1.066 (3 d.p.)
Step-by-step explanation:
The volume of the solid formed by revolving a region, R, around a vertical axis, bounded by x = a and x = b, is given by:
[tex]\displaystyle 2\pi \int^b_ar(x)h(x)\;\text{d}x[/tex]
where:
r(x) is the distance from the axis of rotation to x.h(x) is the height of the solid at x (the height of the shell).[tex]\hrulefill[/tex]
We want to find the volume of the solid formed by revolving a region, R, around the y-axis, where R is bounded by:
[tex]y=\dfrac{1}{\sqrt{2\pi}}e^{-\frac{x^2}{3}}[/tex]
[tex]y=0[/tex]
[tex]x=0[/tex]
[tex]x=1[/tex]
As the axis of rotation is the y-axis, r(x) = x.
Therefore, in this case:
[tex]r(x)=x[/tex]
[tex]h(x)=\dfrac{1}{\sqrt{2\pi}}e^{-\frac{x^2}{3}}[/tex]
[tex]a=0[/tex]
[tex]b=1[/tex]
Set up the integral:
[tex]\displaystyle 2\pi \int^{1}_0x \cdot\dfrac{1}{\sqrt{2\pi}}e^{-\frac{x^2}{3}}\;\text{d}x[/tex]
Take out the constant:
[tex]\displaystyle 2\pi \cdot \dfrac{1}{\sqrt{2\pi}}\int^{1}_0x \cdot e^{-\frac{x^2}{3}}\;\text{d}x[/tex]
[tex]\displaystyle \sqrt{2\pi}\int^{1}_0x \cdot e^{-\frac{x^2}{3}}\;\text{d}x[/tex]
Integrate using the method of substitution.
[tex]\textsf{Let}\;u=-\dfrac{x^2}{3}\implies \dfrac{\text{d}u}{\text{d}x}=-\dfrac{2x}{3}\implies \text{d}x=-\dfrac{3}{2x}\;\text{d}u[/tex]
[tex]\textsf{When}\;x=0 \implies u=0[/tex]
[tex]\textsf{When}\;x=1 \implies u=-\dfrac{1}{3}[/tex]
Rewrite the original integral in terms of u and du:
[tex]\displaystyle \sqrt{2\pi}\int^{-\frac{1}{3}}_0x \cdot e^{u}\cdot -\dfrac{3}{2x}\;\text{d}u[/tex]
[tex]\displaystyle \sqrt{2\pi}\int^{-\frac{1}{3}}_0 -\dfrac{3}{2}e^{u}\; \text{d}u[/tex]
[tex]-\dfrac{3\sqrt{2\pi}}{2}\displaystyle \int^{-\frac{1}{3}}_0 e^{u}\; \text{d}u[/tex]
Evaluate:
[tex]\begin{aligned}-\dfrac{3\sqrt{2\pi}}{2}\displaystyle \int^{-\frac{1}{3}}_0 e^{u}\; \text{d}u&=-\dfrac{3\sqrt{2\pi}}{2}\left[ \vphantom{\dfrac12}e^u\right]^{-\frac{1}{3}}_0\\\\&=-\dfrac{3\sqrt{2\pi}}{2}\left[ \vphantom{\dfrac12}e^{-\frac{1}{3}}-e^0\right]\\\\&=-\dfrac{3\sqrt{2\pi}}{2}\left[ \vphantom{\dfrac12}e^{-\frac{1}{3}}-1\right]\\\\&=1.06582594...\\\\&=1.066\; \sf (3\;d.p.)\end{aligned}[/tex]
Therefore, the volume of the solid is approximately 1.066 (3 d.p.).
[tex]\hrulefill[/tex]
[tex]\boxed{\begin{minipage}{3 cm}\underline{Integrating $e^x$}\\\\$\displaystyle \int e^x\:\text{d}x=e^x(+\;\text{C})$\end{minipage}}[/tex]
the expression the quantity cosecant squared of theta minus 1 end quantity over cotangent of theta simplifies to which of the following?
Students were asked to simplify the expression using trigonometric identities:
A. student A is correct; student B was confused by the division
B. 3: cos²(θ)/(sin(θ)csc(θ)); 4: cos²(θ)
Trigonometric Identities are equality statements that hold true for all values of the variables in the equation and that use trigonometry functions.
There are several distinctive trigonometric identities that relate a triangle's side length and angle. Only the right-angle triangle is consistent with the trigonometric identities.
The six trigonometric ratios serve as the foundation for all trigonometric identities. Sine, cosine, tangent, cosecant, secant, and cotangent are some of their names.
Each student correctly made use of the trigonometric identities
cosec(θ) = 1/sin(θ)
1 -sin²(θ) = cos²(θ)
A.
Student A's work is correct.
Student B apparently got confused by the two denominators in Step 2, and incorrectly replaced them with their quotient instead of their product.
The transition from Step 2 can look like:
[tex]\frac{(\frac{1-sin^2\theta}{sin\theta} )}{cosec\theta} =\frac{1-sin^2\theta}{sin\theta} .\frac{1}{cosec\theta} =\frac{cos^2\theta}{(sin\theta)(cosec\theta)}[/tex]
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Complete question:
Students were asked to simplify the expression the quantity cosecant theta minus sine theta end quantity over cosecant period Two students' work is given. (In image below)
Part A: Which student simplified the expression incorrectly? Explain the errors that were made or the formulas that were misused. (5 points)
Part B: Complete the student's solution correctly, beginning with the location of the error. (5 points)
If anyone could help that would be nice pls :)
Answer:
47 the answer is simply 47
The function f(x) is represented by this table of values.
x f(x)
-5 35
-4 24
-3 15
-28
-1
3
0
0
1 -1
Match the average rates of change of fx) to the corresponding intervals.
-8
-7
(-5, -1]
(-4,-1]
[-3, 1]
(2, 1)
HELPPP ASAP
Answer:
-8: (-4, -3]
-7: (-3, -1]
(-5, -1]: (-5, -1]
(-4, -1]: (-4, -1]
[-3, 1]: [-3, 1]
(2, 1): (1, 2]
find the standard form of the equation of the ellipse having foci (2,0) and (2,6) and a major axis of length 8
The standard form of the equation of the ellipse is (x - 2)^2 / 4 + (y - 3)^2 / 7 = 1
To find the standard form of the equation of the ellipse, we first need to determine some of its properties.
The foci of the ellipse are given as (2, 0) and (2, 6). This tells us that the center of the ellipse is at the point (2, 3), which is the midpoint of the line segment connecting the foci.
The major axis of the ellipse is given as a length of 8. Since the major axis is the longest dimension of the ellipse, we can assume that the length of the major axis is 2a = 8, so a = 4.
Next, we need to determine the length of the minor axis. We know that the distance between the foci is 2c = 6, so c = 3. Since c is the distance from the center of the ellipse to each focus, we can use the Pythagorean theorem to find the length of the minor axis
b^2 = a^2 - c^2
b^2 = 4^2 - 3^2
b^2 = 7
b = sqrt(7)
Now we have all the information we need to write the standard form of the equation of the ellipse. The standard form is
(x - h)^2 / a^2 + (y - k)^2 / b^2 = 1
where (h, k) is the center of the ellipse. Plugging in the values we found, we get
(x - 2)^2 / 4 + (y - 3)^2 / 7 = 1
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Which is the solution to the inequality?
One-fourth + x less-than StartFraction 5 over 6 EndFraction
x less-than StartFraction 7 over 12 EndFraction
x greater-than StartFraction 7 over 12 EndFraction
x less-than 1 and StartFraction 1 over 12 EndFraction
x greater-than 1 and StartFraction 1 over 12 EndFraction
To satisfy the inequality x less-than StartFraction 7 over 12 EndFraction.
What is an Inequality?Inequalities are called as the mathematical expressions in which both sides are nonequal. Unlike to equations, we compare two values in inequality. Less than (or less than or equal to), greater than (or greater than or equal to), or not equal to signs can be used in place of the equal sign in between.
The inequality is 1/4 + x < 5/6 in order to solve this inequality we need to isolate the value of x, that is our variable of interest. This is shown bellow:
1/4 + x < 5/6
x < 5/6 - 1/4
LMC is used to subtract the fractions we have as follows:
x < (2*5 - 3*1)/12
x < (10 - 3)/12
x< 7/12
The inequality must be satisfied for x to be smaller than 7/12.
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Answer: x < 7/12
Step-by-step explanation:
Suppose A and B are invertible matrices. Mark each statement as true or false. True means that the statement is true for all invertible matrices A and B.
(In−A)(In+A)=In−A2.
Choose True False
(AB)^−1=A^−1B^−1.
Choose True False
A+B is invertible.
Choose True False
A7 is invertible.
Choose True False
(A+B^)2=A^2+B^2+2AB.
Choose True False
The true statement for all invertible matrices A and B are
1. (In−A)(In+A)=In−A².
2. (AB)⁻¹=A⁻¹B⁻¹
4. A⁷ is invertible.
The given statement is true for all invertible matrices A. To prove this statement, we can expand the left-hand side of the equation as follows:
(In−A)(In+A) = In(In) + In(A) − A(In) − A(A)
= In² + InA − AIn − A²
= In + InA − AIn − A²
= In − A²
Therefore, we have shown that (In−A)(In+A)=In−A2 is true for all invertible matrices A.
The statement is true for all invertible matrices A and B. To prove this statement, we can use the definition of the inverse of a matrix. The inverse of a matrix A is a matrix A⁻¹ such that AA⁻¹ = A⁻¹A = I, where I is the identity matrix. Using this definition, we can show that:
(AB)(A⁻¹B⁻¹) = A(BB⁻¹)A⁻¹ = AIA⁻¹ = AA⁻¹ = I
(B⁻¹A⁻¹)(AB) = B⁻¹(A⁻¹A)B = B⁻¹IB = BB⁻¹ = I
Therefore, we have shown that (AB)⁻¹ = A⁻¹B⁻¹ is true for all invertible matrices A and B.
The statement is false in general. For instance, consider the matrices A = [1 0] and B = [−1 0]. Both A and B are invertible matrices, but A + B = [0 0] which is not invertible as it is not a full rank matrix.
The statement is true for all invertible matrices A. To prove this statement, we can use the fact that the product of invertible matrices is also invertible. Since A is invertible, we can write:
A⁷ = AAAA...A
= A⁶A
= (A⁻¹)⁻¹A⁶A
= (A⁻¹A)⁻¹A⁶A
= IA⁶A
= A⁶
We can repeat this process until we get A⁷ = (A⁻¹)⁻¹. Thus, A⁷ is invertible for all invertible matrices A.
The statement is false in general. To show this, we can use a counterexample. Let A = [1 0] and B = [0 −1]. Then,
(A + B)² = [1 −1][1 −1]
= [0 0]
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ne al Compute the derivative of the given function. TE f(x) = - 5x^pi+6.1x^5.1+pi^5.1
The derivative of f(x) is
[tex]f'(x) = -5pi x^(pi-1) + 6.1 * 5.1x^(5.1-1) + 5.1pi^(5.1-1)[/tex].
What is derivative?The derivative of a function is a measure of how that function changes as its input changes. Derivatives are also used in calculus to find the area under a curve, or to solve differential equations.
In this case, the function f(x) is a polynomial, which means it is a combination of terms of the form [tex]ax^b[/tex], where a and b are constants. The derivative of f(x) can be calculated by taking the derivative of each term in the function and then combining them together.
The derivative of a term [tex]ax^b[/tex] is [tex]abx^(b-1)[/tex]. For the first term of f(x),[tex]-5x^pi[/tex], the derivative is [tex]-5pi x^(pi-1)[/tex]. For the second term, [tex]6.1x^5.1[/tex] the derivative is[tex]6.1 * 5.1x^(5.1-1)[/tex]. For the third term, [tex]pi^5.1[/tex], the derivative is [tex]5.1pi^(5.1-1)[/tex].
Combining these terms together, the derivative of f(x) is
[tex]f'(x) = -5pi x^(pi-1) + 6.1 * 5.1x^(5.1-1) + 5.1pi^(5.1-1)[/tex].
This answer is the derivative of the given function. This is how the function changes as its input changes.
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The derivative of f(x)= [tex]-5x^{\pi}+6.1x^{5.1}+\pi^{5.1}[/tex] is [tex]-5\pi x^{\pi -1}[/tex]+ [tex]6.1*5.1x^{5.1-1}[/tex] +5.1[tex]\pi^{5.1-1}[/tex] which can be calculated with the power rule.
What is derivative?The derivative of a function is a measure of how that function changes as its input changes. Derivatives are also used in calculus to find the area under a curve, or to solve differential equations.
The derivative of the given function f(x) = [tex]-5x^{\pi}+6.1x^{5.1}+\pi^{5.1}[/tex] can be calculated with the power rule, which states that the derivative of xⁿ is nx⁽ⁿ⁻¹⁾
To calculate the derivative of the given function, we begin by applying the power rule to each term.
The first term is [tex]-5^{\pi }[/tex] which has a derivative of [tex]-5\pi x^{\pi -1}[/tex].
The second term is [tex]6.1x^{5.1}[/tex] which has a derivative of [tex]6.1*5.1x^{5.1-1}[/tex].
The third term is [tex]\pi^{5.1}[/tex], which has a derivative of 5.1[tex]\pi^{5.1-1}[/tex].
Therefore, the derivative of the given function
f(x)= [tex]-5x^{\pi}+6.1x^{5.1}+\pi^{5.1}[/tex] is [tex]-5\pi x^{\pi -1}[/tex]+ [tex]6.1*5.1x^{5.1-1}[/tex] +5.1[tex]\pi^{5.1-1}[/tex].
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Question:
Compute the derivative of the given function.
f(x) = - [tex]5x^{\pi }[/tex]+[tex]6.1x^{5.1}[/tex]+[tex]\pi^{5.1}[/tex]
Write an equation in slope-intercept form for the line that passes through (3,-10) and (6,5).
Answer:
The slope of a line passing through two points (x1, y1) and (x2, y2) is given by the formula:
m = (y2 - y1) / (x2 - x1)
Substituting the values, we get:
m = (5 - (-10)) / (6 - 3) = 15/3 = 5
Now that we have the slope, we can use the point-slope form of a linear equation to write the equation of the line:
y - y1 = m(x - x1)
Substituting the values of m, x1, and y1, we get:
y - (-10) = 5(x - 3)
Simplifying and rearranging the equation, we get:
y + 10 = 5x - 15
y = 5x - 25
Therefore, the equation of the line passing through (3,-10) and (6,5) in slope-intercept form is y = 5x - 25.
Step-by-step explanation:
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his yearly salary is $78000
.
Calculate his fortnightly income. (Use 26
fortnights in a year.)
Fortnightly income =
$
His fortnightly income is $3000 where the yearly salary is $78000 using 26 fortnights in a year.
What is fortnightly income?Fortnightly income is the amount of income a person earns every two weeks. It is usually calculated by dividing the person's yearly income by the number of fortnights in a year, which is typically 26.
According to question:To calculate the fortnightly income (F), we need to divide the yearly salary (Y) by the number of fortnights in a year (N), which is 26.
So mathematically, we can express the calculation of the fortnightly income as:
F = Y / N
Substituting the given values, we get:
F = $78000 / 26
Simplifying the expression, we get:
F = $3000
Therefore, his fortnightly income is $3000.
For example, if a person's yearly salary is $52,000, their fortnightly income would be calculated as:
Fortnightly income = Yearly salary / Number of fortnights
Fortnightly income = $52,000 / 26
Fortnightly income = $2,000
The person's fortnightly income would be $2,000.
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The complete question is Tom’s yearly salary is $78000. Calculate Tom’s fortnightly income. (Use 26 fortnights in a year). Fortnightly income = ?$