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Vanyuwa [196]
3 years ago
6

(–3i) (4i)(–5i) a 60i3 b 60i c 60 d −60i

Mathematics
1 answer:
AlekseyPX3 years ago
3 0

Answer: -60i

Step-by-step explanation:

(-3i) (4i) = -12i^2 = 12 because i^2 = -1

then lastly

12 (-5i) = -60i

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3 years ago
Justin wanted to wrap his moms birthday present shaped like a rectangular prism with pretty paper. The box is 2.1 feet long, 2.7
JulijaS [17]

Answer:

42.06 ft²

Step-by-step explanation:

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5 0
3 years ago
Tiana is on a 25-foot ladder that is leaning against her house. Its base is 7 feet from the base of the house. The ladder slips
Lostsunrise [7]

Answer:

4 ft downwards

Step-by-step explanation:

old height off the ground :

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49+b^2=625

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7+8=15

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difference between heights :

24 - 20 =  4

4 0
3 years ago
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7 0
3 years ago
Read 2 more answers
Question 5
Mice21 [21]

Answer:

The missing value is 2

Step-by-step explanation:

A direct variation satisfies the equation y=kx.

Since the point (-18, 12) lies on this line, it must satisfy this equation.

\implies 12=-18k

k=-\frac{12}{18} =-\frac{2}{3}

Hence the equation of this line is y=-\frac{2}{3}x

Now we substitute x=-3 to find y.

y=-\frac{2}{3}*-3=2

Therefore the missing value is 2

4 0
3 years ago
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