Answer: To find out how many meters of ribbon Mrs. Marin needs, we first need to convert the required length of 38 centimeters per costume to meters.
1 meter = 100 centimeters, so we divide 38 by 100:
38 cm / 100 cm/m = 0.38 m
So each costume requires 0.38 meters of ribbon.
To find the total amount of ribbon needed for 50 costumes, we multiply the amount of ribbon per costume by the number of costumes:
0.38 m/costume * 50 costumes = 19 meters
So Mrs. Marin needs 19 meters of blue ribbon for the 50 costumes.
Step-by-step explanation:
100 POINTS PLEASE HELP WILL GIVE BRAINLIEST
Answer:
Step-by-step explanation:
The entry "EQUIPMENT $12,000" is listed as a debit in the T-account, which means it is an increase in assets. Therefore, the correct answer is (b) increase in assets.
Please help! This assignment is due today and I don't understand it.
[tex]\qquad \qquad \qquad \textit{discriminant of a quadratic} \\\\\\ \stackrel{\stackrel{a}{\downarrow }}{2}x^2\stackrel{\stackrel{b}{\downarrow }}{+4}x\stackrel{\stackrel{c}{\downarrow }}{+2}=y ~~~~~~~~ \stackrel{discriminant}{b^2-4ac}= \begin{cases} 0&\textit{one solution}\\ positive&\textit{two solutions}\\ negative&\textit{no solution} \end{cases} \\\\\\ (4)^2-4(2)(2)\implies \text{\LARGE 0}\qquad \stackrel{\textit{two real positive solutions}}{\textit{two x-intercepts}}[/tex]
21. Your cousin, Dorothy, mentioned that rotations, translations, and reflections will
result in the congruence of corresponding lines, line segments, and angles. Is this
true? How come?
Yes the statement of my cousin that rotations, translations, and reflections will result in the congruence of corresponding lines, line segments, and angles is true
How is this statement true?Yes, this is true. Congruence refers to the idea that two geometric figures are identical in size and shape. Translations, rotations, and reflections are rigid motions that preserve distances and angles, meaning that corresponding lines, line segments, and angles in the figures will remain congruent after the transformation.
This is because these transformations only involve shifting, rotating, or flipping the figure, but not changing its shape or size.
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Help please!
Slope of one of the dotted lines:
Slope of the line reflection:
Answer:
see explanation
Step-by-step explanation:
calculate slope m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
consider the slope of the middle dotted line
with (x₁, y₁ ) = (- 3, - 4) and (x₂, y₂ ) = (3, - 2) ← 2 points on the line
m = [tex]\frac{-2-(-4)}{3-(-3)}[/tex] = [tex]\frac{-2+4}{3+3}[/tex] = [tex]\frac{2}{6}[/tex] = [tex]\frac{1}{3}[/tex]
consider the slope of the line of reflection ( the solid line )
with (x₁, y₁ ) = (- 1, 0) and (x₂, y₂ ) = (- 2, 3) ← 2 points on the line
m = [tex]\frac{3-0}{-2-(-1)}[/tex] = [tex]\frac{3}{-2+1}[/tex] = [tex]\frac{3}{-1}[/tex] = - 3
note the product of the slopes = [tex]\frac{1}{3}[/tex] × - 3 = - 1
indicating the lines are perpendicular to each other
Use the graph to determine
(a) open intervals on which the function is increasing, if any.
(b) open intervals on which the function is decreasing, if any.
(c) open intervals on which the function is constant, if any.
a) The function is increasing on the following interval: (3, ∞).
b) The function is not decreasing on any interval of it's domain.
c) The function is not constant on any interval of it's domain.
How to classify the function as increasing, decreasing or constant?The function is increasing when the graph moves right and up.The function is decreasing when the graph moves right and down.The function is constant when the graph of the function is an horizontal line.More can be learned about functions at brainly.com/question/24808124
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Show how to find the sine, cos, and tangent of 30° given that cos60°=1/2.
Answer:
Step-by-step explanation:
Given that cos(60°) = 1/2, we can use trigonometric identities to find the sine, cosine, and tangent of 30°:
Sine of 30°:
sin(30°) = √[1 - cos^2(30°)] = √[1 - (cos(60°)/2)^2] = √[1 - 1/4] = √3/2.
Cosine of 30°:
cos(30°) = √[1 - sin^2(30°)] = √[1 - (√3/2)^2] = √[1 - 3/4] = √1/4.
Tangent of 30°:
tan(30°) = sin(30°) / cos(30°) = (√3/2) / (√1/4) = √3.
So, the sine of 30° is √3/2, the cosine of 30° is √1/4, and the tangent of 30° is √3.
I shall give you 15 points if you can solve this one
Answer: 4x+2x+12x+9x+10x
Step-by-step explanation: The simplified expression is 37x. I didn't put an equal sign because that makes it an equation. The perimeter is the sum of all sides. All sides are given except one which can be solved using 12x because it is 2x less than that value or 10x.
Sally deposits $10,000 into an account that pays 4.7% interest compounded yearly. What is the balance after 5 years?
Answer:
$12,581.53
Step-by-step explanation:
The balance of an account after having interest compounded annually can be represented using the equation:
[tex]A = P(1 + r)^{t}[/tex]
where [tex]A[/tex] is the final balance, [tex]P[/tex] is the principal (starting amount), [tex]r[/tex] is the rate of interest, and [tex]t[/tex] is the number of years that interest is applied.
We can plug the given values into this equation and solve for [tex]A[/tex].
[tex]P = \$10,000[/tex] [tex]r = 4.7\%[/tex] [tex]t = 5[/tex]
[tex]A = 10,000(1 + 4.7\%)^{5}[/tex]
[tex]A \approx \$12,581.53[/tex]
So, Sally's balance in an account that had $10,000 before being compounded for 5 years at an interest rate of 4.7% is $12,581.53.
Simplify showing work!
(mp)^6
The simplified form of the expression (mp)⁶ is equal to m⁶×p⁶.
What are some rules of exponents?Some common rules of exponents are
xᵃ×xᵇ = xᵃ⁺ᵇ.
xᵃ/xᵇ = xᵃ⁻ᵇ.
Addition and subtraction of exponents is only possible for the same base value and when the base is different and both have the same exponent we just multiply the bases and write the exponent.
The given expression is (mp)⁶.
We know, 2²×2² = 2⁴ but 2²×3² = (2×3)² = 6².
Therefore, (mp)⁶ = m⁶×p⁶.
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Given below are lease terms at the local dealership. What is the total cash
due at signing?
Terms:
• Length of lease = 18 months
• MSRP of the car = $22,750
• Purchase value of the car after lease = $16,900
• Down payment = $1800
• Monthly payment = $425
• Security deposit = $400
• Acquisition fee = $300
The total cash due at signing is $3,700 at the local dealership..
What is the addition operation?The addition operation in mathematics adds values on each side of the operator.
For example 4 + 2 = 6
The total cash due is calculated as:
Down payment: $1,800
Security deposit: $400
Acquisition fee: $300
Total: $1,800 + $400 + $300
Apply the addition operation, and we get
= $3,700
Thus, the total cash due at signing is $3,700.
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Yoko must choose a number between 67 and 113 that is a multiple of 2,6 and 10. Write all the numbers that she could choose. If there is more than one number, separate them with commas.
Answer:
Step-by-step explanation:
Write all of the multiples of ten between 67 and 113
70 80 90 100 110
all of these will be divisible by 2...just need to find the one(s) divisible by 6
only 90
solve for the variable there are negatives and the line between is a division please only do this if you get what I'm talking about all the way.
The value of the unknown variable in the equation is -16
Solving linear equations
Linear equations are equations that has a leading degree of 1.
Given the linear equation below
-2 = 2 + v/4
We need to calculate for the unknown variable 'v'
Subtract 2 from both sides
-2-2 = v/4
-4 = v/4
Swap
v/4 = -4
Multiply both sides by 4
v = -4 8 4
v = -16
Hence the value of the unknown variable from the equation is -16.
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A researcher is measuring the amount of time needed to solve a set of anagrams for a sample of n = 15 students. However, one of the participants fails to solve the problems so the researcher has an undetermined score. What is the best measure of central tendency for these data?X f
5+ 2
4 3
3 2
2 1
1 1
0 1
For this data, the median is the best indicator of central tendency.
The correct option is B.
What exactly do you mean by central tendency?A summary measure called a measure of central tendency, also known as a measure of central or a measure of central placement, aims to summaries the entirety of a set of data using a single number that corresponds to the middle or central of its distribution.
What are the four measurements of central tendency?The mean, median, mode, and the midpoint are the four indicators of central tendency. The arithmetic mean of the maximum and minimum values in a data set is used here to define the midpoint or mid-extreme of a set of statistical data values.
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I understand that the question you are looking for is:
A researcher is measuring the amount of time needed to solve a set of anagrams for a sample of n = 15 students. However, one of the participants fails to solve the problems so the researcher has an undetermined score. What is the best measure of central tendency for these data?
a) the mean
b) the median*
c) the mode
d) central tendency cannot be determined for these data
Which of the following numbers is irrational?
A 7.7
B) /7
C) /49
D) 0.77778
evaluate (8+2)^3-6 for IReady Math
Help please!
Equation of line of reflection:
Answer:
y = - 3x - 3
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
here m = - 3 , then
y = - 3x + c
the line crosses the y- axis at (0, - 3 ) ⇒ c = - 3
y = - 3x - 3 ← equation of line of reflection
can somebody help me with 4,5 : 1,5 ??
Answer:
It's 3
Step-by-step explanation:
which of the following statements are true? (a) if a kite is also a parallelogram, then it must be a rhombus. (b) if a trapezoid is also a parallelogram, then it must be a rhombus. (c) if a trapezoid is also a kite, then it must be a parallelogram. (d) if a rhombus is also a trapezoid, then it must be a kite. enter your answer as a list, separated by commas.
The following statements is true: (c) if a trapezoid is also a kite, then it must be a parallelogram and others (a),(b) &(d) are false.
The following is a list of true and false statements regarding the relationship between kites, parallelograms, rhombi, and trapezoids:
(a) False. If a kite is also a parallelogram, it does not necessarily mean that it is a rhombus. A rhombus is a type of parallelogram with equal sides, while a kite is a specific type of quadrilateral with two pairs of equal-length sides.
(b) False. If a trapezoid is also a parallelogram, it does not necessarily mean that it is a rhombus. A rhombus is a type of parallelogram with equal sides, while a trapezoid is a type of quadrilateral with exactly one pair of parallel sides.
(c) True. If a trapezoid is also a kite, then it must be a parallelogram. A kite is a specific type of quadrilateral with two pairs of equal-length sides, which automatically makes it a parallelogram.
(d) False. If a rhombus is also a trapezoid, it does not necessarily mean that it is a kite. A kite is a specific type of quadrilateral with two pairs of equal-length sides, while a rhombus is a type of parallelogram with equal sides.
In conclusion, it's important to understand the definitions and properties of each type of quadrilateral to determine if a statement about their relationship is true or false.
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HELP PLEASE I REALLY NEED THIS
Answer:
Step-by-step explanation:
Part A:
x = # of days
R: 1 hr + 3/4 hr/day(x)
J: 4 hr + 1/2 hr/day(x)
1 + 3/4x = 4 + 1/2x
3/4x - 2/4x = 3
1/4x = 3
x = 12 days
After 12 days of practicing (not including the first Saturday), they each will have practiced 10 hours
Part B:
Saturday plus 12 more days →
Saturday 1-Sun 2- Mon 3-Tues 4-Wed 5-Thurs 6-Fri 7-Sat 8-Sun 9-Mon 10-Tues 11-Wed 12-Thursday
They both will have practiced 10 hours on the second Thursday after they started on Saturday
Enlarge shape A by scale factor 2 with centre of enlargement (1, 5)
The coordinates of the vertices of the image include the following: (-1, 3), (-1, -1), (5, -1), and (7, 3).
How to enlarge shape A by a scale factor of 2?In this exercise, we would have to dilate (enlarge) the coordinates of the pre-image by using a scale factor of 2 centered at the point (1, 5) by using this mathematical expression:
(x, y) → (k(x - a) + a, k(y - b) + b)
For coordinate 1, we have;
Coordinate 1 = (2, 4) → (2(2 - 1) + 1, 2(4 - 5) + 5)
Coordinate 1 = (2, 4) → (2(-1) + 1, 2(-1) + 5)
Coordinate 1' = (-1, 3).
For coordinate 2, we have;
Coordinate 2 = (2, 2) → (2(2 - 1) + 1, 2(2 - 5) + 5)
Coordinate 2 = (2, 2) → (2(-1) + 1, 2(-3) + 5)
Coordinate 2' = (-1, -1).
For coordinate 3, we have;
Coordinate 3 = (3, 2) → (2(3 - 1) + 1, 2(2 - 5) + 5)
Coordinate 3 = (3, 2) → (2(2) + 1, 2(-3) + 5)
Coordinate 3' = (5, -1).
For coordinate 4, we have;
Coordinate 1 = (4, 4) → (2(4 - 1) + 1, 2(4 - 5) + 5)
Coordinate 1 = (4, 4) → (2(3) + 1, 2(-1) + 5)
Coordinate 1' = (7, 3).
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When rolling a 6-sided die twice, determine P(sum of 4). three thirty sixths five thirty sixths eight thirty sixths two sixths
On each roll of a 6-sided die, we have 6 possible outcomes.
Then if we roll it twice, we will have 36 outcomes.
The outcomes where the sum is 4 are:
roll 1 roll 2 sum
1 3 4
3 1 4
2 2 4
Son in 3 out of 36 outcomes the sum can be 4, then the probability opf rolling a sum of 4 is given by the quotient:
P = 3/36
P = 1/12
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Select the reason that best supports statement 7
The reason that best supports Statement 7 in the given proof is given as follows:
D. Subtraction property of equality.
How to justify the Statement 7?
The statement 6 in the proof is given as follows:
132 + m < C = 180º.
Then the statement 7 is defined as follows:
m < C = 48º.
The angle measure of 48º was obtained subtracting 180 by 132, which was done to isolate the angle measure of C, which we did subtracting both sides of the equality by 132.
This is the subtraction property of equality, hence the correct option is given by option D.
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If you deposit $4,000 into an account paying 6% annual interest compounded quarterly, how much money will be in the account after 5 years?
Round to the nearest cent if necessary.
Answer: 1200 dollars
Step-by-step explanation:For this question we use the formula:
principal amount x interest rate/100 x time
4000 x 6/100 x 5
4000 x 0.06 x 5
1200
Answer:
$5,387.42
Step-by-step explanation:
Use the formula:
[tex]A = P\left(1 + \dfrac{r}{n}\right)^{nt}\\[/tex]
where A = amount accrued (principal + interest)
P = initial deposit
r = annual interest rate as a decimal
n = number of times compounded annually
t = number of years
Given
P = 4000
r = 6/100 = 0.06
n = 4 times a year
t = 5 years
[tex]A = 4000\left( 1 + \dfrac{0.06}{4}\right)^{4\cdot 5}\\\\A = 4000 ( 1+ 0.015)^{20}\\\\A = 4000 (1.015)^{20}\\\\A = \$5,387.42[/tex]
Find the value of a.
Show your answers
4a - 8 + 4a - 8 + 4a - 8 = 180°
The sum of interior angle of triangle is 180°
12a - 24 = 180°
12a = 204
[tex]a = \frac{204}{12} \\ [/tex]
a = 17°
Imagine this:
The altitude of an airplane coming in for a landing is represented by the equation shown below, where y represents the altitude, in feet, of the
airplane and x represents the number of minutes the plane has been descending:
| = -5x + 150
Part C:
Which ordered pair (from the table in part A) represents the initial value? What does the initial value represent in this problem? (1-2 sentences)
Part D:
What is the rate of change in this equation? What does the rate of change represent in this problem? (1-2 sentences)
Part C: The ordered pair (0, 150) represents the initial value in the table. The initial value represents the altitude of the airplane when it started descending, i.e., the altitude of the airplane before it began its descent.
Part D: The rate of change in this equation is -5, which is the coefficient of x. The rate of change represents the decrease in altitude, in feet, per minute as the airplane descends for a landing. In other words, the altitude decreases by 5 feet for every minute that the airplane descends.
can someone tell me answer for this question? please
Answer:
see below
Step-by-step explanation:
3540/3820 = 93%
so 7% decline
if linearly = every year decline 7%
so back in 1990, 3 years ago, the population was
p° = 3820/(1-7%)^3 =3820/.8=4749
so from 1990
p = 4749 * (1-7%)^t
2009 is 16 years from 1993
so p = 3820 * (1-7%)^16 =1196
Answer:
A) P(t) = 3820 -70t
B) 2700
Step-by-step explanation:
You want a linear equation for the moose population that changed from 3820 in 1993 to 3540 in 1997, and you want the predicted population in 2009.
A)The slope of the linear function can be found from ...
m = (p2 -p1)/(t2 -t1)
If we let t represent years after 1993, then this is ...
m = (3540 -3820)/(4 -0) = -280/4 = -70
P(t) = 3820 -70t . . . . . . . . population is 3820 when t=0, 70 less each year
B)2009 is 16 years after 1993, so we want P(16):
P(16) = 3820 -70·16 = 3820 -1120
P(16) = 2700
The population is predicted to be 2700 in 2009.
Let f ∶ R^2 → R be the function given by f(x, y) = y^2 − x^2.
Find the critical point(s) of f and show that f does not have any local maximums nor any local minimums.
The required critical points of f is (0, 0) and the function f does not have a local maximum nor local minimum.
The critical points of a function f are the points in the domain where the partial derivatives of f are equal to 0 or are undefined. To find the critical points of f, we can find the partial derivatives of f with respect to x and y, and set them equal to 0:
df/dx = -2x
df/dy = 2y
Setting df/dx equal to 0, we have:
-2x = 0
So, x = 0.
Setting df/dy equal to 0, we have:
2y = 0
So, y = 0.
Thus, the only critical point of f is (0, 0).
To show that f does not have any local maximums nor any local minimums at the critical point (0, 0), we can check the second partial derivatives of f at this point:
d²f/dx² = -2
d²f/dy² = 2
d²f/dxdy = 0
At (0, 0), d²f/dx² is negative and d²f/dy² is positive, which indicates that f is a saddle point at (0, 0). This means that f does not have a local maximum nor a local minimum at (0, 0).
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How to solve x(x-2)=48
Answer:
x = 8
Step-by-step explanation:
To solve the equation x(x - 2) = 48 for x, we can first expand the left side:
x^2 - 2x = 48
Next, we'll add 2x to both sides to isolate x^2:
x^2 = 48 + 2x
Then, we'll subtract 2x from both sides:
x^2 - 2x = 48
Now we have a quadratic equation that we can solve for x using the quadratic formula:
x = (-b ± √(b^2 - 4ac)) / 2a
where a = 1, b = -2, and c = 48. Plugging these values into the formula:
x = (-(-2) ± √((-2)^2 - 4(1)(48))) / 2(1)
x = (2 ± √(4 + 192)) / 2
x = (2 ± √196) / 2
x = (2 ± 14) / 2
So the two solutions are x = (2 + 14) / 2 = 8 and x = (2 - 14) / 2 = -6.
Keep in mind that x cannot be negative in this context as it represents a measurement. Therefore, x = 8 is the only solution that has a meaningful value in this context.
Step-by-step explanation:
x(x-2)=48
Remove the parentheses
x²-2x=48
Move the constant to the left
x²- 2x - 48=0
Rewrite the expression
x² + 6x - 8x - 48 = 0
Factor the expressions
x(x+6) - 8(x+6) = 0
Separate into possible cases
(x+6) (x-8)=0
x + 6 = 0
x - 8 = 0
x = - 6 or x = 8
Divide express your answer in simplest form 1 7/11 / 2 1/2
Answer:
2
Step-by-step explanation:
To divide 1 7/11 by 2 1/2, you first have to convert both numbers to have a common denominator. The smallest common denominator between 11 and 2 is 22. So, you convert 1 7/11 to be 2 14/22, and convert 2 1/2 to be 11/22. Then, you can divide 2 14/22 by 11/22 which gives 2.
What is greater one fifths or 2/10??
Answer: They are equal to one another.
1/5 is equal to 2/10.
First we must find a common denominator that both 2 and 10 can be divided by. 2 is a number that both are divisible by. So we must divide 2/10 by 2,leaving 1/5. This means that the number are equal to one another. So neither are greater than the other.
I hope this helps & Good Luck <3!!