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Mamont248 [21]
3 years ago
14

What is the first step to 7(x – 4) = 84.

Mathematics
2 answers:
Oliga [24]3 years ago
8 0
Divide both sides of the equation by 7
ss7ja [257]3 years ago
5 0
Parenthesis according to the PEMDAS rule

So
7(x - 4) = 84

Would be

7x -28 = 84


Hope this helped :)
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Which of the following equations are equivalent to -2m - 5m - 8 = 3 + (-7) + m?
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3 years ago
Please help me for this question
rosijanka [135]

The volume of the given trapezoidal prism is 312 cubic units.

Step-by-step explanation:

Step 1:

To find the volume of a trapezoidal prism, we multiply the area of the trapezoidal surface with the height of the prism.

The area of a trapezoidal surface, A = \frac{a+b}{2} (h).

a and b are the lengths of the upper and lower bases and h is the height of the trapezoid.

For the given trapezoid, a is 5 units long and b is 8 units long while height, h is 4 units.

The area of the trapezoidal surface, A =  \frac{5+8}{2} (4) = 6.5(4) = 26.

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The volume of the given trapezoidal prism is 312 cubic units.

7 0
3 years ago
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