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3 years ago

Math surface area help plz

Mathematics

2 answers:

Westkost [7]3 years ago

8 0

They give you the formula. Now let's plug numbers in.

it is A= 1/2 (15+12)8
remember PEMDAS, so parentheses first..
A= 1/2 (27)8
A=1/2(216)
if the 1/2 confuses you, just remember that that fraction is saying one half, and another way to represent halves are 0.5
so
A=108

hope this helps!

Stolb23 [73]3 years ago

3 0

So, use the formula:

$A = .5(8)(27)$

A = 108

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3 years ago

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Lapatulllka [165]

Step-by-step explanation:

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4 years ago

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3 years ago

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weeeeeb [17]

Answer: x>_3.2 OR x<_ -0.75

Step-by-step explanation: first break down your compound inequality. 5x-4>_12

You first cancel out your constants by adding 4 to both sides. Now you’re left with 5x>_16 then to cancel five you have to divide on both sides by five which equals to 3.2. Then, x>_ 3.2.

Next you do your second part, 12x+5<_-4

So first cancel out the constant of 5 by subtracting 5 on both sides, making the equation 12x<_-9. Now, you divide by 12 on both sides, making it -9/12. Which effectively is -0.75. Therefor, the answer being x<_ -0.75. Add the two together x>_3.2 OR x<_0.75

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3 years ago