evaluate (8+2)^3-6 for IReady Math
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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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
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.
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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A maintenance worker needs to wax a restaurant floor shaped like the image shown.
A six-sided figure. There is a horizontal base of 28 feet then another horizontal base below it of 16 feet. The longest side is to the right and is 32 feet. The top is 24 feet. There is a perpendicular from the vertex of the top to the first base of 28 that is labeled 12 feet.
If the wax cost $2.25 a square foot, how much will the wax cost to cover the floor?
$3,096
$2,106
$1,638
$1,530
Answer: 1,638
Step-by-step explanation:
Answer:
1638
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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
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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100 POINTS PLEASE HELP A business buys equipment with $150 cash and puts $425 on credit. What is the value of this asset?
A. $275
C. $575
B. $150
D. $425
Answer:
The correct answer is C. $575. The business bought equipment with $150 cash and put $425 on credit, so the total value of the asset is $575 ($150 + $425).
If m/n ,in lowest terms, be the probability that a randomly chose positive divisor of 10^99 is an integral multiple of 10^88 than find the value of (m+n).
m and n are the two numbers that form the fraction which is the probability of a randomly chosen positive divisor of [tex]10^99[/tex] being an integral multiple of [tex]10^88[/tex].
Let the probability of a randomly chosen positive divisor of [tex]10^99[/tex]being an integral multiple of 10^88 be represented as m/n.
Since [tex]10^99[/tex]is a multiple of [tex]10^88[/tex], its positive divisors will also be multiples of [tex]10^88[/tex].
Therefore, the probability that a randomly chosen divisor of [tex]10^99[/tex]is an integral multiple of [tex]10^88[/tex] will be 1, i.e., m/n = 1.
Therefore, m+n = 1+1 = 2
Hence, the value of (m+n) is 2.
m and n are two numbers that form a fraction in lowest terms, which is the probability that a randomly chosen positive divisor of [tex]10^99[/tex] is an integral multiple of [tex]10^88[/tex]. To find the value of (m+n), we need to first determine the value of m and n. To do this, we must first calculate the total number of positive divisors of [tex]10^99[/tex]that are integral multiples of [tex]10^88[/tex]. We can then divide this number by the total number of positive divisors of [tex]10^99[/tex] to get the fraction. The numerator of this fraction is m and the denominator is n. The sum of m and n is the answer to the question. This is because the fraction gives us the probability that a randomly chosen positive divisor of [tex]10^99[/tex] is an integral multiple of [tex]10^88[/tex], and the sum of m and n is the total number of positive divisors of[tex]10^99[/tex], which is the denominator of the fraction. Therefore, the value of (m+n) is the sum of the numerator and denominator of the fraction.
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From 15 men and 11 women, how many committees of 10 persons can be chosen if each committee is to have exactly 8 men?
Answer:
1
Step-by-step explanation:
There are 15 men in total;
If each committee is to have 8 men (and assuming one man cannot be in multiple committees), we can simply do the following:
15/8 = 1.875
This means only 1 committee can be made containing exactly 8 men.
You can also think of it like this:
If 8 men make up 1 committee, then this leaves 7 (15 - 8) men left;
Since you need 8 men, there is not enough for a second committee (once again, assuming that one man cannot be in more than one committee).
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.
Please help will mark brainy
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
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]
Geometry question, question in photo attachment
Answer:
323/7 or about 46.143
Step-by-step explanation:
We can infer that the measure of B + C is 90 degrees, so 6x + 1 + 8x - 11 must be equal to 90.
6x + 1 + 8x - 11 = 90
14x - 10 = 90
14x = 100
x = 100/14
x = 50/7
Solve for the measure of C by substituting x with 50/7.
50/7 * 8 = 400/7
400/7 - 11 = 323/7
the measure of C is 323/7
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.
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
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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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!!
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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Math work I hope you can see
What is the rationale for the above responses?
1) to obtain the value of x, we must equate AC and BD based on the diagonal properties of a rectangle. Note that a rectangle's diagonal divides it into two congruent right triangles.
A rectangle's diagonals are all the same length. A square is a quadrilateral whose diagonals bisect each other, intersect at right angles, and are congruent.
Thus,
Since BD = AC
2x + 19 = 5x - 2
To solve the equation 2x + 19 = 5x - 2, we need to isolate x on one side of the equation.
First, we can simplify both sides by combining like terms. Subtracting 2x from both sides gives:
19 = 3x - 2
Next, we can isolate x by adding 2 to both sides:
21 = 3x
Finally, we can solve for x by dividing both sides by 3:
x = 7
Therefore, the solution to the equation 2x + 19 = 5x - 2 is x = 7
b) The Properties of Parallel Lines Intersected by a Transverse Postulate states that when a transversal intersects two parallel lines, the corresponding angles are congruent, the alternate interior angles are congruent, and the same-side interior angles are supplementary. This means that
∠LMN + ∠MNK = 180°
Thus,
115 + ∠MNK = 180
∠MNK = 180 - 115
∠MNK = 65°
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can somebody help me with 4,5 : 1,5 ??
Answer:
It's 3
Step-by-step explanation:
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.
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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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°
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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At the ice cream shop, there are 14 shakes sold for every 6 malts. What is the ratio from malts to shakes and malts to total?
The ratio of malts to shakes is 3:7 if 14 shakes are sold for every 6 malts.
What is meant by ratios?When the second number in the ordered pair, b, is not equal to 0, the ratio is expressed as a/b. An equation in which two ratios are made equal is known as a percentage. A ratio is a tool for comparing like-kind quantities or illustrating relationships between them. To compare similar items, we employ ratios.
Let the number of shakes be S and the number of malts be M.
Given: Number of shakes sold = 14 shakes
Number of malts sold = 6 malts
To find the ratio of malts to shakes:
The ratio of malts to shakes exists given by the expression:
M/S = Number of malts sold/Number of shakes sold
Substituting the given parameters into the formula, we have;
M/S = 6/14
M/S = 3/7
Therefore, the ratio of malts to shakes is 3 : 7.
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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]