1 answer:
Answer:
D
Step-by-step explanation:
The area (A) of a trapezoid is calculated as
A = 0.5h(a + b)
where h is the perpendicular height and a, b the parallel sides.
Given A = 120, then
0.5 × 8(a + b) = 120, that is
4(a + b) = 120 ( divide both sides by 4 )
a + b = 30 cm → D
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(a) d=days C=cost
d C
1 30
2 40
3 50
4 60
C=10(d-1)+30
(b) C=10(5-1)+30
C=40+30
C=70
Answer:
28(1+2t+w)
Step-by-step explanation:
Answer:
i think it's either 31 or 28
<h2><u><em>
Answer: Yes it is a rectangle I don't know if that's all you want to know</em></u></h2>
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Answer:
B.) There were 15 more questions on the test than the last test.
Step-by-step explanation:
