Answer:
12
Step-by-step explanation:
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Hey there!
The answer to your question is 
Given:
First, we can start by adding like terms. The following are like terms:
Now, we can add these pairs together, giving us:
Now, add all this together, and we get our answer as:
Have a terrificly amazing day!
The first one it's the first image, and the second one is the second image.
Answer:
36√3 + 144
Step-by-step explanation:
Given that,
base of the pyramid is an equilateral triangle with sides = 12
Formula to calculate total surface area of pyramid
<h3>
[Base Area] + 1/2 × Perimeter × [Slant Length]</h3>
Base Area
1/2 (height) (base)
1/2 (√12²-6²)(12)
6(6√3)
36√3
perimeter of base
sum of all sides = 12 + 12+ 12
= 36
slant height = √10²-6²
= 8
put all these values in the formula above
36√3 + 1/2(36)(8)
36√3 + 144
Total area for the pyramid with the equilateral base =
36√3 + 144
Answer:
1. $50
2. B.
Step-by-step explanation:
1. Since Mallory has 5 dollars, and that’s 1/10 of her monthly allowance, then you multiply 5 by 10 to get 50 as her monthly allowance.
2. Since Addie has $12.59 in her wallet, the 9 has B. (9*0.01) value.
