Anyone know the awnser for all 3? 25 points

answer:

a) 10 inches

b) 540 inches³

c) 1080 inches³

Step-by-step explanation:

a) Volume = ⅓ base area × height

270 = ⅓ × 9² × h

270 = 27h

h = 10 inches

b) Volume = ⅓ × 9² × 2h

= ⅓ × 9² × 20

= 540 inches³

c) Volume = ⅓ × (2×9)² × 10

= 1080 inches³

answer:

a. 15 in

b. 540 in

c. 540 in

Step-by-step explanation:

⤴️There Are the explaination and proof of my calculation, reply if you don't understand.

no solution

step-by-step explanation:

there is not enough information in the problem to solve.

starting with:    

5 + x - 12 = 2x - 7   

5 + x - 12 - x = 2x - 7 - x (subtract x from both sides)   

5 - 12 = x - 7 (combine and cancel x's from both sides)   

5 - 12 + 7 = x - 7 + 7 (add 7 to both sides)   

0 = x (add numbers together on both sides)       

so in order for the equation to be true, x must be 0.   

trying x = -0.5   

5 + x - 12 = 2x - 7 (original equation)   

5 + -0.5 - 12 = 2(-0.5) - 7 (plug in value of x)   

5 + -0.5 - 12 = -1 - 7 (did multiplication)   

-7.5 = -8 (did addition on both sides)       

since -7.5 is obviously not equal to -8, the value of -0.5 for x is wrong.   

trying x = 0   

5 + x - 12 = 2x - 7 (original equation)   

5 + 0 - 12 = 2(0) - 7 (plug in value of x)   

5 + 0 - 12 = 0 - 7 (did multiplication)   

-7 = -7 (did addition on both sides)       

since -7 equals -7, that demonstrates that the value of 0 for x is correct.   

trying x = 1   

5 + x - 12 = 2x - 7 (original equation)   

5 + 1 - 12 = 2(1) - 7 (plug in value of x)   

5 + 1 - 12 = 2 - 7 (did multiplication)   

-6 = -5 (did addition on both sides)       

since -6 is obviously not equal to -5, the value of 1 for x is wrong.