The answer must be

since the triangular pyramid has 4 faces and each has an area of 30

we should multiply that by 4 , so :
Answer:
6
Step-by-step explanation:
x/8 = 9/12
We can use cross products to solve
x*12 = 8*9
12x = 72
Divide each side by 12
12x/12 = 72/12
x=6
Answer:
10 (8-x)(8+x)
Step-by-step explanation:
640-10x^2
Factor out 10
10 (64 - x^2)
Notice that inside the parentheses is the difference of squares
10 ( 8^2 - x^2) and a^2 - b^2 = (a-b) (a+b)
10 (8-x)(8+x)
Answer:
$15.02
Step-by-step explanation:
add the money then add the 200. to what u get when u add the money
Answer:
I DONT KNOW BUT YOU HAVE TO CHECK OUT MY QUESTION NO OE CAN SOLVE IT I BET
Step-by-step explanation: