Answer:
Step-by-step explanation:
Given
--- scale factor
Required
Determine A'
This is calculated as:
What is the length of the diagonal of a rectangle whose width is 90 cm and whose length is 200 cm? (Round your answer to the nea
1 answer:
Answer:
d. 219 cm
Step-by-step explanation:
If you draw in that diagonal, what you have is two right triangles with the diagonal being the hypotenuse of both. This hypotenuse can be found using Pythagorean's Theorem. Filling in with our info:
and
. Taking the square root of both sides gives you
c = 219.3 or just 219 cm
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Answer:
Step-by-step explanation:
The coordinates of A = (2,9)
The coordinates of B = (7,4)
Let M (x,y) be the mid point of A and B.
So, the coordinates of mid point of A and B is .
Answer:
We conclude that the actual average cost per workbook is higher than $27.50.
Step-by-step explanation:
We are given the following in the question:
Population mean, μ = $27.50
Sample mean, = $28.90
Sample size, n = 44
Alpha, α = 0.05
Population standard deviation, σ = $5.00
First, we design the null and the alternate hypothesis
We use one-tailed z test to perform this hypothesis.
Formula:
Putting all the values, we have
Now,
Since,
We reject the null hypothesis and accept the alternate hypothesis.
Thus, we conclude that the actual average cost per workbook is higher than $27.50.