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Evgesh-ka [11]
3 years ago
12

The equation below shows the area of a trapezoid, A, with a height of 9 cm, and one base of 35 cm. A= 9/2 (b + 35) Which of the

following formulas correctly solves for the other base, b?
Mathematics
1 answer:
Burka [1]3 years ago
3 0

Answer:

B ) b = 2 multiplied by A over 9 - 35

Step-by-step explanation:

b - the other base;

A = 9/2 ( b + 35 )   / * 2  ( we will multiply both sides of the equation by 2 )

2 A = 9 ( b + 35 )

b + 35 = 2 A / 9 

b + 35 - 35 = 2 A / 9 - 35

b = (2 A / 9 ) - 35

Can you mark as Brainiest?

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If one side of a rectangle is five less than the other side and the perimeter is 90 inches, find the area of the rectangle.
horsena [70]
So given a rectangle
sides are 
     _<u>x</u>_
x-5|__|x-5
      x

the perimeter is 90 inches
perimeter is 
x + x + (x-5) + (x-5) = 90
combine like terms
2x + 2(x-5) = 90
distribute
2x + 2x-10 = 90
combine like terms
4x - 10 = 90
add 10 to both sides
4x= 100
divide both sides by 4
x = 25

now to find the length of a side 
x is 25
and x-5 is 20

to check and see if that's right:
25 + 25 + 20 + 20 =?= 90 
50 + 40 =?=
90 = 90

Now to find the area
A = b * h
so
x * (x-5)
substitute
25* 20
500
The area of the rectangle is 500

Hope this helps :)

7 0
3 years ago
Given g(x) = -x + 4 solve for x when g(x) = 0
mario62 [17]

Answer:

x=4

Step-by-step explanation:

<u>-x + 4 equals </u><u>0</u><u>.</u>

<u />

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<u />g(4)=-4+4

<u>Simplify:</u>

<u />g(4)=0

x=4

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Answer:

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Step-by-step explanation:

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8 0
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inessss [21]
Easy, use these two formulas, to find Markdown:

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So, plug in what you know.

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6 0
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Which of the following is not a congruence theorem or postulate
fomenos

Answer:

AAA

Step-by-step explanation:

AAA is not a congruence theorem or postulate.

8 0
3 years ago
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