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polet [3.4K]
2 years ago
15

NEED HELP NOW WITH MATH!!!! points 10

Mathematics
1 answer:
Ghella [55]2 years ago
5 0

Answer:

D

Step-by-step explanation:

I tried the last one and it did not work so maybe D

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A magazine rack contains 5 sports magazines, 7 news magazines, and 10 fashion magazines. After a magazine is chosen, it is not r
LekaFEV [45]
2/22 to simplify 1/11 not sure though but I think that’s the answer u can double check though
6 0
3 years ago
Please help me answer this question mathematicians
Damm [24]

Answer:

  6.5e^(i·(-157.38°)) ≈ 6.5e^(-2.7468i)

Step-by-step explanation:

A suitable calculator can find the value of this ratio for you.

  ((2+3i)/(1-i))² = -6 -2.5i ≈ 6.5∠-157.38° ≈ 6.5e^(-2.7468i)

__

The second attachments shows the calculator set to radian mode for the angle measure.

6 0
2 years ago
The average speed of a train that travels x in 3/4 hour
creativ13 [48]

-------
Ans: (x/(3/4)) mph = (4x/3)mph = (4/3)x mph
------------------------
5 0
3 years ago
Someone answerrrrrr plssss ASAP!!!!!!’
ikadub [295]

Answer:

9. It seems he was inactive/taking a break, as the line is completely straight.

I'm not sure about the others, but I hope that helps!

Step-by-step explanation:

4 0
3 years ago
Hello, could you please explain this to me?
Viefleur [7K]

Find the value of r(q(4)), so first you need to find the value of q(4).

q(4), this means that x = 4, so substitute/plug it into the equation to find the value of q(x) when x = 4:

q(x) = -2x - 1      Plug in 4 into "x" since x = 4

q(4) = -2(4) - 1

q(4) = -8 - 1

q(4) = -9        

Now that you know the value of q(4), you can find the value of r(x) when x = q(4)

r(x) = 2x² + 1

r(q(4)) = 2(q(4))² + 1      Plug in -9 into "q(4)" since q(4) = -9

r(q(4)) = 2(-9)² + 1

r(q(4)) = 2(81) + 1

r(q(4)) = 163           163 is the value of r(q(4))

5 0
3 years ago
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