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3241004551 [841]
3 years ago
7

Is perpendicular to the line y = 2x + 1 and through the point (-1,5)

Mathematics
1 answer:
Monica [59]3 years ago
4 0

Answer:

-2x+3

Step-by-step explanation:

Using y=mx+b

To make the line perpendicular, you just need to make the slope (m=2) negative. To make it go through (-1, 5), you just need to adjust the b value to raise the graph to a point where it will pass through the point.

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Rewrite 2sin2x + 3 cos x − 3 in terms of cos x
Feliz [49]

9514 1404 393

Answer:

  -2cos²(x) +3cos(x) -1

Step-by-step explanation:

Use the "Pythagorean identity" to replace sin²(x).

  sin²(x) +cos²(x) = 1

Then ...

  2sin²(x) +3cos(x) -3 = 2(1 -cos²(x)) +3cos(x) -3

  = -2cos²(x) +3cos(x) -1

4 0
2 years ago
Which equation shows y= −1/2x + 4 in standard form?
VladimirAG [237]
Y = -(1/2)x + 4

y + (1/2)x =4

(1/2)x + y = 4

Multiply both sides by 2

2*(1/2)x + 2*y = 2*4

x + 2y = 8

Option B.
5 0
3 years ago
What is 0.2 repeated as a fraction?
Elina [12.6K]
0.2 in fraction form is 1/5
8 0
3 years ago
8x+y=300
Bond [772]
D. The elevator takes 37.5 seconds to move down to the lobby.


8x+y=300

y= 300-8x
y= 300 - 8 (37.5)

y = 300-300
y = 0

wheb y =0 that means that the height is 0
5 0
3 years ago
What is 60% of 300?
V125BC [204]
Do a proportion
60/100= x/300
60 x 300= 18,000
18,000 divided by 100= 180
Answer is 180

Or you could have done .60 x 300 and got 180.
3 0
3 years ago
Read 2 more answers
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