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Margaret [11]
3 years ago
9

−6k + 7k

Mathematics
1 answer:
creativ13 [48]3 years ago
3 0

Answer:

1 is k

2 is 12r minus 20

3   10n - 13

4     -14x

5    -11r

Step-by-step explanation:

think you have to simplify

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WILL MARK THE BRAINLIEST!! What are the amplitude, period, phase shift, and midline of f(x) = 2 sin(x + π) − 4?
xxMikexx [17]

Answer:

Step-by-step explanation:

Amplitude is twice the coefficent of the sine function. In this case, 2*2=4

Period is 2\pi divided by the coefficent of x, in this case, \frac {2\pi} 1 =2\pi

Phase shift, is how much you sum or subctract from x inside the sine, in this case \pi.

Midline you get by hiding the sine and reading what's left, in this case, -4.

3 0
3 years ago
If JM = 5x – 8 and LM = 2x - 6, which expression represents JL?
Anastasy [175]

Answer:

3x-2

Step-by-step explanation:

JK =JL+LM

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JL = 5x-8 -2x+6

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3 years ago
7x+8x(9y-) respondaa por favorzinho​
poizon [28]

Answer:

7x+72xy

Step-by-step explanation:

7x+8x(9y)=7x+72xy

3 0
2 years ago
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PLEASE HELP I WILL MARK BRAINLIEST
Lelu [443]

Answer:

27 \:  {km}^{2}

Step-by-step explanation:

Given is the shape of a trapezoid.

Therefore,

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5 0
3 years ago
a rectangle of perimeter 100 units has the dimensions shown. Its area is given by the function A = w(50 - w). What is the GREATE
Anna [14]
If A=w(50-w)

A=50w-w^2

dA/dw=50-2w

d2A/dw2=-2

Since the acceleration is a constant negative, that means that when velocity, dA/dw=0, it is at an absolute maximum for A(w)...

dA/d2=0 only when 50=2w, w=25

So as the case with any rectangle, the perfect square will enclose the greatest area possible with respect to a given amount of material to enclose that area...

So the greatest area occurs when W=L=25 in this case:

A(25)=50w-w^2

Area maximum is thus:

Amax=50(25)-(25)^2=625 u^2
7 0
3 years ago
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