PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

Mathematics

1 answer:

VashaNatasha [74]3 years ago

8 0

Answer:

D 7i

Step-by-step explanation:

sqrt(-49)

We know that sqrt(ab) = sqrt(a) sqrt(b)

sqrt(49) sqrt(-1)

We know that sqrt(-1) = i

Taking the principal square root of 49

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Answer:

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Part b) The volume of the pyramid increases by $6\ cm^{3}$

Step-by-step explanation:

<u><em>The complete question is</em></u>

Part 1) The volume of the pyramid shown in the figure is 9,15,21, or 63 cubic centimeters?. Part 2) If the slant height of the pyramid increases by 4 centimeters and its height increases by 2 centimeters, the volume of the pyramid increases by 6,9,12 or 21 cubic centimeters?

we know that

The volume of the pyramid is equal to

$V=\frac{1}{3}Bh$