3 years ago

Please help will give brainliest

Mathematics

2 answers:

ValentinkaMS [17]3 years ago

6 0

Answer:

Step-by-step explanation:

size can change but angles dont

torisob [31]3 years ago

3 0

Answer:

75.89

Step-by-step explanation:

rffgfbbfb

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Sam ran 6 miles in an hour. What is the rate in feet per minute?

ASHA 777 [7]

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3 years ago

*35 BRAINLY POINTS! BRAINLIEST TO THE FIRST CORRECT PERSON!*

kondor19780726 [428]

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Step-by-step explanation:

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3 years ago

What value of d will make this system have the same solution?<br> -3x + 7y = -1<br> dy = 3

Dima020 [189]

The value of d which will.make this system have the same solution is; d = 21/(3x -1)

First, we must make y, the subject of the formula in each case as follows;

y = (3x -1)/7. and
y = 3/d.

In essence, by equating y to y in both equations; we have;

(3x -1)/7 = 3/d

By Cross-product; we have;

(3x -1).d = 21

d = 21/(3x -1)

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3 years ago

-64=(2cos(pi/2)+2i sin(pi/2))^n..... n=??

zvonat [6]

Answer:

The real solution is $n=6$ .

Step-by-step explanation:

$\cos(\frac{\pi}{2})=0$ while $\sin(\frac{\pi}{2})=1$

So the equation becomes:

$-64=(2(0)+2i(1))^n$

$-64=(0+2i)^n$

$-64=(2i)^n$

We know that $2^6=64$ . So let's see what $n=6$ gives us:

$(2i)^6=64i^6=64i^4i^2=64(1)(-1)=-64$ .

$-64$ is the result we wanted.

$n=6$ is therefore a solution.

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3 years ago

0.05<br><img src="https://tex.z-dn.net/?f=0.05%20%5Cdiv%200.416" id="TexFormula1" title="0.05 \div 0.416" alt="0.05 \div 0.416"

nika2105 [10]

The answer is 0.12019231

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3 years ago