joe7977

23.03.2021 • 

Mathematics

Hi so I would like all the questions below answered for math! thanks in advance for whoever helps me today! Question 1:
If Sarah works at the concession stand for 2 hours, she'll earn $15.50, but if she works for 4 hours, she'll earn $31.00. find the rate of change.

question two:
a line has a slope of 5/3. which of the following points could this line pass through?
A: (15,13) and (0,4)
B: (3,9) and (6,14)
C: (0,4) and (19,9)
D: (5,7) and (10,10)

Question three:
Find the slope of the line that contains the ordered pairs (10,8) and (-5,8)

Question four:
find the slope of the line that contains the ordered pairs (18,-7) and (18,2)

Question five: Look at attached image.. the table is there I will put the word problem here. please answer!

Leah's lunch account has a starting balance of $20. the table shows the remaining balance after a certain amount of days. if leah is bringing her lunch to school but buying a sports drink from the cafeteria each day, how much will the sports drink cost?

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Ответ:

hi105

02.04.2021

Mathematics

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A = area of triangle + area of rectangular + half of the circle area

triangle area = 1/2 × base × height

triangle area = 1/2 × 3 × 5 = 15/2 = 7.50

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rectangular area = length × width

rectangular area = 6 × 5 = 30

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circle half area = 1/2 × pi × radius^2

circle half area = 1/2 × 3.14 × 3^2

circle half area = 1.57 × 9

circle half area = 14.13

A = 7.50 + 30 + 14.13

A = 51.63 m^2

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