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anzhelika [568]
3 years ago
7

Help,anyone can help me do quetion,I will mark brainlest.​

Mathematics
2 answers:
Nesterboy [21]3 years ago
8 0
A. 2
B1+b2/2 •h= A 10+x/2 •8= 48
B. 4

B1+b2/2 •h= A 2+7/2 •x= 18

Hope this helps!!
Serhud [2]3 years ago
5 0

Answer:

a)    x = 2

b)    x = 4

Step-by-step explanation:

a = (b₁ + b₂)/2 * h

----------------------------

a)

48 = (10 + x)/2 * 8

Divide both sides by 8

6 = (10 + x)/2

multiply both sides by 2

12 = 10 + x

Subtract 10 from both sides

2 = x

x = 2

---------------------------------

b)

18 = (7 + 2)/2 * x

18 = 4.5 * x

divide both sides by 4.5

4 = x

x = 4

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