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2 years ago

If c-d=7 and c=3-8i what is d a) -4+8i b)-4-8i c)4+8i d)4-8i

Mathematics

1 answer:

Zigmanuir [339]2 years ago

6 0

Answer:

Step-by-step explanation:

c - d = 7

c = 3 - 8i Substitute into the top equation

3 - 8i - d = 7 Subtract 3 from both sides

- 8i - d = 7 - 3 Combine

-8i - d =4 Add 8i to both sides

-d = 4 + 8i Multiply through by -1

-1*-d = -4 - 8i

d = - 4 - 8i

Looks like B is the answer.

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2 years ago

Point V lies between points U and W on Line segment U W.

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Answer:

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cricket20 [7]

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2 years ago

Helen has 48 cubic inches of clay to make a solid square right pyramid with a base edge measuring 6 inches. Which is the slant h

Nikitich [7]

Answer: 5 inches

Step-by-step explanation:

Given: Volume of clay = 48 cubic inches

If we make a solid square right pyramid with a base edge a= 6 inches.

Then its base area = $a^2=6^2=36\ inches^2$

we know that volume of square right pyramid= $\frac{1}{3}\times\ a^2h$

Therefore, volume of square right pyramid made by all of clay= $\frac{1}{3}\times\ a^2h$ =48 cubic inches

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Now, slant height $l=\sqrt{(\frac{a}{2})^2+h^2}$

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2 years ago

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