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Mrac [35]
3 years ago
5

For a trapezoid, the following formula relates the area a, the two bases a and b, and the height h. a= g (a

Mathematics
1 answer:
Dovator [93]3 years ago
5 0
A - area of a trapezoid;
a, b - two bases.
A = h * ( a + b ) / 2            / * 2  ( we have to multiply both sides by 2 )
2 A = h *( a + b )
2 A = h a + h b
h b = 2 A - h a
b = ( 2 A - h a ) / h
b = 2 A/h - a
Answer: D )
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My recommendation would be to factor..
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6 0
3 years ago
What is n in the equation 12 + 12n = -48
Liula [17]
Hello!

To solve an algebraic equation, you must isolate the variable on one side. We’ll begin by restating the given equation:

12 + 12n = -48

Now subtract 12 from both sides of the equation:

12n = -60

Divide both sides by 12:

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We have now proven that “n” is equal to (-5).

I hope this helps!
3 0
3 years ago
U={1,2,3,4,5,6,7,8,9} <br> a={2,4,6,8} <br> b={3,6,9} <br><br> What is the set AUB?
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Step-by-step explanation:

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5 0
2 years ago
40% =32/ what is the full fraction
Levart [38]
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Multiply both sides by x
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Divide both sides by .40
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Write the full fraction
32/80

Answer 32/80

3 0
3 years ago
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