Answer:
Step-by-step explanation:
5.
point = (x, y)
A = (, 12)
B = (, 20)
C = (3, 24)
D = (, 28)
y/x ratios
24/3
6.
(1 2/3, 3 1/3) = 3 1/3 ÷ 1 2/3 = 2
(1 1/4, 2 1/2) = 2 1/2 ÷ 1 1/4 = 2
(3, 7) = 7 ÷ 3 = 2 1/3
(4 1/2, 9) = 9 ÷ 4 1/2 = 2
The ratio 7/3 (x = 3 and y = 7) is not proportionally related to the others.
The other ratios are equal to each other and are therefore in proportion.
7. yes
SOLUTION
Given the question in the image, the following are the solution steps to answer the question.
STEP 1: Explain the formula to use
Using the cosine rule which states that:
STEP 2: Write the given sides
STEP 3: Find the value of z
Hence, the indicated length is 4.0
To be able to compare the rates, we will write them in fraction form.
The fraction that represents Joe's rate is:
and the fraction that represents Bob's rate is:
Simplifying the above fractions, we get:
Since:
then Bob and Joe did not work at the same rate.
Answer:
No, Bob and Joe did not work at the same rate.