Answer:
³/2 (1.5)
Step-by-step explanation:
∆DEF was enlarged to get ∆ABC. The scale factor would be:
The ratio of any of the side length of ∆ABC to the corresponding side length of ∆DEF.
Thus,
BC:EF = 12:8
= 12/8
= 3/2 = 1.5
Scale factor from ∆DEF to ∆ABC is ³/2 or 1.5
In the given figure COE and BOD are right angles. If the measure of BOC is four times the
measure of COD, which is the measure of AOB?
The measure of angle AOB is 180°.
Since COE and BOD are right angles, the measure of both angles is 90°.
The measure of COD is 1/4th of the measure of BOC, which is 90°. Therefore, the measure of COD is 90/4 = 22.5°.
Adding the measures of all three angles gives us 180°.
Therefore, the measure of AOB = 180 - (90 + 22.5) = 67.5°
50 Points! Multiple choice algebra question. Photo attached. Thank you!
Answer:
subsidiaries hi sus
Step-by-step explanation:
scientific 2 is the answer
Compare the algebraically expressed function f(x) = 1 4 x2 - 2x to the function shown in the graph to determine which statement is true. A) The algebraic function has a greater maximum value. B) The algebraic function has a lower minimum value. C) The graphed function has a greater maximum value. D) The graphed function has a lower minimum value.
The correct statement regarding the minimum value of the quadratic functions is given as follows:
D) The graphed function has a lower minimum value.
How to obtain the minimum value of the quadratic functions?From the graph, the minimum value of the quadratic function is given as follows:
y = -8.
The algebraic function is defined as follows:
f(x) = 0.25x² - 2x.
Hence the coefficients are given as follows:
a = 0.25 and b = -2.
The x-coordinate of the vertex is given as follows:
x = -b/2a
x = 2/0.5
x = 4.
Then the y-coordinate of the vertex, representing the minimum value, is given as follows:
f(4) = 0.25(4)² - 2(4)
f(4) = -4 -> meaning that the graphed function has a lower minimum value.
Missing InformationThe graph is given by the image presented at the end of the answer.
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A report from 2019 claims that the average salary of a retail worker is $15 per hour. You collect data from a random sample of 30 retail workers in Atlanta and calculate the average salary for workers from your sample to be $16.00 with a standard deviation of $2.80. Conduct a hypothesis test to determine if the true average hourly wage of a retail worker is different than the claim of $15.
Answer:
Hypothesis test conclusion , average salary ≠ 15
Step-by-step explanation:
Null Hypothesis [H0] : Average Salary = 15
Alternate Hypothesis [H1] : Average Salary ≠ 15
t = (x bar - μ) ÷ (s / √[n])
Sample Mean [x bar] = 16 , Population Mean [μ] = 15 , Standard Deviation [s] = 2.80 , [Sample number] n = 30
t = (16 - 15) / (2.80 / 5.47)
t = 1 / 0.5
t = 2
As calculated value ie 2 > tabulated critical value ie 1.96 , at significance level 0.05. So, we reject the Null Hypothesis.
Hence, as per Alternate Hypothesis, average salary ≠ 15
Pls help me i'm stuck
Answer: \(m\angle BAM=30^{\circ}\)
Step-by-step explanation:
\(AD=x\sqrt{3}\) (Pythagorean theorem)
\(m\angle ACD=60^{\circ}\) (30-60-90 triangle)
\(m\angle MCA=30^{\circ}\) (angle subtraction)
\(m\angle MAC=30^{\circ}\) (base angles theorem)
\(m\angle CAD=30^{\circ}\) (30-60-90 triangle)
\(m\angle BAM=30^{\circ}\) (angle subtraction)
How can I factor the following expression by grouping:
a) 4x^3 - 2x^2 + 8x - 4
The factored expression of 4x³ - 2x² + 8x - 4 is (2x² + 4)(2x - 1) by grouping
How to factor the expression by groupingFrom the question, we have the following parameters that can be used in our computation:
4x³ - 2x² + 8x - 4
Group the expression in 2's
So, we have
(4x³ - 2x²) + (8x - 4)
Factorize each group
2x²(2x - 1) + 4(2x - 1)
So, we have
(2x² + 4)(2x - 1)
Hence, the factored expression is (2x² + 4)(2x - 1)
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A charity is considering the possibility of having a benefit night at two different restaurants. The owner of the local Italian restaurant has offered to make a donation of $462 and $1 per diner that night. On the other hand, the owner of the Mexican restaurant has said he could contribute $235 plus $2 per diner. Based on the number of diners who have promised to participate in the event, it appears that each restaurant would donate the same total amount. How many diners promised to participate? How much would each restaurant donate?
Let's assume that the number of diners at the Italian restaurant is "x" and the number of diners at the Mexican restaurant is "y". Then, we can write the following equations based on the given information:
Italian restaurant:
Donation = $462 + $1 per diner
Donation = $462 + $1x
Mexican restaurant:
Donation = $235 + $2 per diner
Donation = $235 + $2y
Since both restaurants will donate the same total amount, we can set their donations equal to each other:
$462 + $1x = $235 + $2y
Simplifying this equation, we get:
$2y - $1x = $227
We know that the number of diners has to be a whole number, so we can try different values of x and see which one gives us a whole number for y.
For example, if we try x = 200, then we can solve for y:
$2y - $1(200) = $227
$2y = $427
y = 213.5
Since y is not a whole number, we need to try a different value of x. If we try x = 250, then we get:
$2y - $1(250) = $227
$2y = $477
y = 238.5
Again, y is not a whole number, so we try another value of x. If we try x = 300, then we get:
$2y - $1(300) = $227
$2y = $527
y = 263.5
Still not a whole number, so we try x = 350:
$2y - $1(350) = $227
$2y = $577
y = 288.5
Finally, we get a whole number for y, so we have our solution:
Italian restaurant: x = 350 diners, donation = $812
Mexican restaurant: y = 289 diners, donation = $812
Therefore, 350 diners promised to participate and each restaurant would donate $812.
Write 0.000000624 in scientific notation
Answer:
6.24 x \(10^{-7}\)
Step-by-step explanation:
0.000000624 in scientific notation is 6.24 x \(10^{-7}\)
Answer:
Step-by-step explanation:
The resulting number is in scientific notation. In this case, the number is 6.24 * 10^-7.
Calculate the volume, in cubic centimeters, of a box which is 125 cm long, 37 cm wide, and 68 cm high. Report your answer with correct significant figures in cubic centimeters.
Answer:
\(Volume = 314500cm^3\)
Step-by-step explanation:
Given
\(Length = 125cm\)
\(Width = 37cm\)
\(Height = 68cm\)
Required
Determine the volume
Volume is calculated as:
\(Volume = Length * Width * Height\)
Substitute values for Length, Width and Height
\(Volume = 125cm * 37cm * 68cm\)
\(Volume = 314500cm^3\)
Hence, the volume of the box is \(314500cm^3\)
P=x-2 ÷ x+1 for what value of x is P undefined
Answer:
x = - 1
Step-by-step explanation:
P = \(\frac{x-2}{x+1}\)
the denominator of the rational function cannot be zero as this would make it undefined. Equating the denominator to zero and solving gives the value that x cannot be.
x + 1 = 0 ( subtract 1 from both sides )
x = - 1
P is undefined when x = - 1
Find the measure of angle b.*
Answer:
Step-by-step explanation:
b = 44
When parallel lines is cut by a transversal, alternate exterior angles are congruent
QUESTION DOWN BELOW
PLEASE HELP DUE SOON, AND SO CONFUSED
Answer:
144 km
Step-by-step explanation:
Please answer this correctly.I want expert people or genius people to answer this
Answer:
298.5 cm^2.
Step-by-step explanation:
The area of the triangular base
= 1/2 * base * height
= 1/2 * 10 * 8.7 cm^2
There are 3 other triangular sides all withe the same area and each of them as area = 1/2 * 10 * 17
So the total surface area of the pyramid
= 1/2 * 10 * 8.7 + 3 * 1/2 * 10 * 17
= 5 * 8.7 + 3 * 85
= 298.5 cm^2.
the ratio of the length to the breadth of a room is 5:3 what is the length of the room if the breadth is 6m
According to the solving If the room's width is 6 meter's, then its length must be 10 meter's.
What is length?Distance is measured by length. The quantity of length has the dimension of distance there in International System of Quantities. Most measurement systems choose a base unit for length from which all subsequent units are derived. The metre serves as the fundamental unit of length in the International System of Units.
How do you determine length?If you have an area A and a width w, you can calculate the length w by using the formula h = A/w. Its length can indeed be calculated using the formula h = P/2w if you know its perimeter (P) and width (W). If you have the width w and the diagonal
According to the give information:
Let length be x By Given Condition
5/3=x/6
x=5/3*6
x=30/3=10
Therefore length of room is 10.
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Which table represents the statement "Di runs at a rate of 4 meters per second " ?
Answer:
The third one Edg
Step-by-step explanation: Brainlest plzzz
Use calculus to find the area A of the triangle with the given vertices. (0, 6), (2, −3), (3, 4)
The area of the triangle with the given vertices is 11.5 square units.
Define the area of triangle by vertices?The area of a triangle can be calculated using the coordinates of its vertices using the following formula.
To find the area of a triangle with vertices (x₁, y₁), (x₂, y₂), and (x₃, y₃), we can use the following formula:
A = (x₁(y₂ − y₃) + x₂(y₃ − y₁) + x₃(y₁ − y₂))/2
Using this formula with the given vertices (0, 6), (2, −3), and (3, 4), we get:
A = (0(-3 − 4) + 2(4 − 6) + 3(6 − (-3)))/2
A = (0 - 4 + 27)/2
A = 23/2
A = 11.5
Therefore, the area of the triangle with the given vertices is 11.5 square units.
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find the missing angle
Answer:
? = 77°
Step-by-step explanation:
the 3 angles in a triangle sum to 180° , that is
? + 35° + 68° = 180°
? + 103° = 180° ( subtract 103° from both sides )
? = 77°
Answer:77
Step-by-step explanation:
180-103=77
Exac
Two
If BD = 2.8, what is CP? Round
your answer to the nearest tenth. Write NA if
there is not enough information given.
RN=
Con
Diac
The shape represents an isosceles trapezoid
The value of CP is 1.1 units
How to calculate the length of CPThe given parameters are:
Length BD =2.8Length AP = 1.7Angle ADB = 37 degreesAngle BDC = 34 degreesThe shape is an isosceles trapezoidThe diagonals of an isosceles trapezoid are congruent.
This means that:
\(CA = BD = 2.8\)
Also, we have:
\(CA = CP + AP\)
Substitute values for CA and AP
\(CP + 1.7 = 2.8\)
Subtract 1.7 from both sides
\(CP = 1.1\)
Hence, the value of CP is 1.1 units
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you can buy 3 apples at the quick stop for $1.29. you can buy 5 apples at shop and save for $2.45. which place is better buy?
Answer:
Quick Stop -
3 apples = $1.29
1 apple = $0.43
Shop -
5 apples = 2.45
1 apple = 0.49
So the quick stop is better!
The number of rows in an auditorium can be represented by the function f(x) = 80x. The number of seats in each row can be represented by the function g(x) = x + 7. Which function represents the total number of seats, h(x) = f(x)g(x)?
Answer:
\(h(x) = 80x^2 + 560x\)
Step-by-step explanation:
To find the function h(x), that represents the total number of seats, we just need to multiply the functions f(x) (number of rows) and g(x) (number of seats per row):
\(h(x) = f(x) * g(x)\)
\(h(x) = 80x * (x+7)\)
\(h(x) = 80x*x + 80x*7\)
\(h(x) = 80x^2 + 560x\)
So the function that represents the total number of seats is:
\(h(x) = 80x^2 + 560x\)
Answer: A
Step-by-step explanation:
if the williams spend 1/3 of their total monthly income for rent and 1/4 for food. what fraction of their money remains for other expenses each month?
The fraction of their money remains for other expenses each month is 5/12.
What is fraction?An element of a whole is a fraction. The number is represented mathematically as a quotient, where the numerator and denominator are split. Both are integers in a simple fraction. A fraction appears in the numerator or denominator of a complex fraction. The numerator of a proper fraction is less than the denominator.
Given:
Williams spend 1/3 of their total monthly income for rent and 1/4 for food.
The fraction of their money remains for other expenses each month,
= 1 - 1/3 - 1/4
= 5/12
Therefore, 5/12 is the remaining money.
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-5p = -40 solve for t
Answer:
p = 8
Step-by-step explanation:
Divide -5 to both sides
-5p = -40
5p = 40
p = 8
So p = 8
Select the correct answer.
Each statement describes a transformation of the graph of f(x) = x. Which statement correctly describes the graph of g(x) if g(x) = f(x - 11)?
A. It is the graph of f(x) where the slope is increased by 11.
It is the graph of f(x) translated 11 units to the left.
It is the graph of f(x) translated 11 units up.
It is the graph of f(x) translated 11 units to the right.
B.
C.
OD.
The correct answer is C. It is the graph of f(x) translated 11 units to the left.
The correct answer is:
C. It is the graph of f(x) translated 11 units to the left.
When we have a function of the form g(x) = f(x - a), it represents a horizontal translation of the graph of f(x) by 'a' units to the right if 'a' is positive and to the left if 'a' is negative.
In this case, g(x) = f(x - 11), which means that the graph of f(x) is being translated 11 units to the right. However, the answer options do not include this specific transformation. The closest option is option C, which states that the graph of g(x) is translated 11 units to the left.
The graph of f(x) = x is a straight line passing through the origin with a slope of 1. If we apply the transformation g(x) = f(x - 11), it means that we are shifting the graph of f(x) 11 units to the right. This results in a new function g(x) that has the same shape and slope as f(x), but is shifted to the right by 11 units.
Therefore, the correct answer is C. It is the graph of f(x) translated 11 units to the left.
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Predicting Election Results Throughout the US presidential election of 2012, polls gave regular updates on the sample proportion supporting each candidate and the margin of error for the estimates. This attempt to predict the outcome of an election is a common use of polls. In each case below, the proportion of voters who intend to vote for each candidate is given as well as a margin of error for the estimates. Indicate whether we can be relatively confident that candidate A would win if the election were held at the time of the poll. (Assume the candidate who gets more than of the vote wins.)
(a) Candidate A: 54% Candidate B: 46% Margin of error: ± 5% Confident A would win or Not confident in the outcome
(b) Candidate A: 52% Candidate B: 48% Margin of error: ± 1% Confident A would win or Not confident in the outcome
(c) Candidate A: 53% Candidate B: 47% Margin of error: ± 2% Confident A would win or Not confident in the outcome
(d) Candidate A: 58% Candidate B: 42% Margin of error: ± 10% Confident A would win or Not confident in the outcome
Answer:
(a) Not confident.
(b) Confident A would win.
(c) Confident A would win.
(d) Not confident.
Step-by-step explanation:
In order for us t be confident that Candidate A will win, Candidate A's percentage minus the margin of error must be higher than Candidate B's plus the margin of error.
(a)
\(A = 54\%-5\%=49\%\\B = 46\%+5\%=51\%\)
Not confident.
(b)
\(A = 52\%-1\%=51\%\\B = 48\%+1\%=49\%\)
Confident A would win.
(c)
\(A = 53\%-3\%=51\%\\B = 47\%+2\%=49\%\)
Confident A would win.
(d)
\(A = 58\%-10\%=48\%\\B = 42\%+10\%=52\%\)
Not confident.
PLEASE HELP NOW!!!!!
Which expression is equivalent to 3^2 • 3^-5
3²×3^-5
Multiply the terms with the same base by adding their exponents
3²-5
Calculate the differences
3^-³
Express with a positive exponent using a ^-n =1/n
a
1/3³
Write the exponentiation as a multiplication
3×3×3
Multiply the numbers
27
Answer is 1/27
Yet again just need answers to this
Answer:
Decreasing Interval
Step-by-step explanation:
A consulting firm submitted a bid for a large research project. The firm's management initially felt they had a 50-50 chance of getting the project. However, the agency to which the bid was submitted subsequently requested additional information on the bid. Past experience indicates that for 80% of the successful bids and 35% of the unsuccessful bids the agency requested additional information. a. What is the prior probability of the bid being successful (that is, prior to the request for additional information)
Answer:
\(Probability = 0.50\)
Step-by-step explanation:
Given
\(Probability = 50\ 50\ chance\)
\(Successful\ Bids = 80\%\)
\(Unsuccessful\ Bids = 35\%\)
Required
Determine the probability before the request of past experience
In this case, we only consider the 50 50 chance probability
\(Probability = \frac{50}{50 + 50}\)
\(Probability = \frac{50}{100}\)
\(Probability = 0.50\)
The number 2/5 is both an blank and an blank
The number 2/5 is both a ratio and a fraction.
How to describe the numberThe number 2/5 is both a ratio and a fraction. Fractions are meant to signify the numerator and denominator in an expression. in the above expression, we have the denominator as 5 and the numerator as 2.
The expression is also a ratio because it indicates the quantitative relationship between the figures.
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You want to buy some rice. A 7-ounce package costs $2.59. A 16-ounce package costs $5.60. A 24-ounce package costs$9.36. Which package is the best buy?
Answer:
Thanks
Step-by-step explanation:
Thanks
What is the complementary angle of CFB
Step-by-step explanation:
CFB reads as twenty five degrees
complementary angle will add to it to sum 90 degrees = sixty five degrees
angle CFD is sixty five degrees