Answer: The last option, Stacy is incorrect because she should multiply 2 and 2 first and then subtract 4 from 12.
Step-by-step explanation:
We must follow the Order of Operations, also known as PEMDAS. See attached. Multiplication comes before subtraction, but Stacy subtracted 2 from 12 when she should have multiplied 2 by 2. This means the answer to your question is;
Stacy is incorrect because she should multiply 2 and 2 first and then subtract 4 from 12.
Answer: 8,800
Step-by-step explanation:
Since the hundredth place is 764 we will round up to 800
which will give you 8,800!
Tip: Rounding the number up only takes place if the last two digits in the number are 50 or above.
If not, Round down if the last two digits in the number are 49 or below.
IF the last digits are 00 no rounding takes place.
Surface area of sphere = 4πr²
<span>4πr² = 314.16
</span>
r² = 314.16/(4π)
r² ≈ 25.0000
r ≈ √<span>25.0000
r </span>≈ 5
Radius is almost 5 ft.
You can use the equation

to find the lenth of the legs
x = leg 1
x + 14 = leg 2
Subtract x on both sides the result you divide it by 5