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Alex787 [66]
3 years ago
7

PLEASE HELP !!! I’LL GIVE U BRAINLIST / CROWN !!!! please and thank youuu

Mathematics
1 answer:
nata0808 [166]3 years ago
4 0

Answer:

128i^{3} -320i^{4}

Step-by-step explanation:

a^{3}b = (-4i)^{3}(-2+5i) = (-64^{3})(-2+5i) = 128i^{3} - 320i^{4}

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(80 POINTS) What rule describes a dilation with a scale factor of ½ and the center of dilation at the origin?
lesya [120]

Answer:

C

Step-by-step explanation:

(x, y) -> (1/2x, 1/2y)

When you dilate a side, point, etc, you are multiplying the original dimension by the scale factor. That is represented in option C: the original x and y are multiplied by the scale factor, 1/2! Hope that helps! :)

6 0
3 years ago
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Sherrie invested some money at 6% interest. Sherrie also invested $249 more than 4 times that amount at 12%. How much is investe
Anon25 [30]

Answer:

  • 6%: $1776
  • 12%: $7353

Step-by-step explanation:

Let x represent the amount invested at 6%. Then the amount invested at 12% is 4x+249. Sherrie's interest is ...

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Sherrie invested $1776 at 6% and $7353 at 12%.

4 0
3 years ago
Can somebody PLEASE HELP ME
svet-max [94.6K]

Answer:

150.796π square meters

maybe!

Step-by-step explanation:

4 0
3 years ago
The roof of a castle tower is shaped like a cone. The base of the cone is 24 m across and the height is 16 m. The slant height o
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<span>my answer for B is 28.84 



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8 0
3 years ago
Which of the following is not a triangle congruence theorem?<br><br> ASA<br> AAS<br> SSA
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The answer is SSA, that what I found
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