Please help fast! I will give brainliest. (number 5)
1 answer:
Answer:
B, 13.5
Step-by-step explanation:
Formula used is SA=4s^2
726= 4s^2
181.5= s^2
13.47=s
13.5~ s
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V = (1/3)pi*r^2*h that's the formula to used to get the volume of the cone
6/9=x/21
x=21*6/9
=126/9
x=14
-3(x+5)=-9
-3x-15=-9
+15 +15
-3x=6
-1x=2
1x=-2
x=-2
Answer:
2.5
Step-by-step explanation:
when you 5x automatically cancels, and 7.5 / 3 is 2.5
Answer:
B
Step-by-step explanation:
6x + 30 + 4x = 10(x+3)
10x + 30 = 10x + 30
0 = 0
