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DochEvi [55]
3 years ago
7

Write the equation of a line that is perpendicular to y=-x-6 and that passes through the point (-9,-4).​

Mathematics
1 answer:
gavmur [86]3 years ago
5 0

Answer:

y = x + 5

Step-by-step explanation:

Perpendicular lines have opposite reciprocal slopes, so the line will have a slope of 1.

Then, plug in the slope and given point into y = mx + b to solve for b:

y = mx + b

-4 = 1(-9) + b

-4 = -9 + b

5 = b

Plug in the slope and b into y = mx + b:

y = 1x + 5

y = x + 5

So, the equation of the line is y = x + 5

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What is the order of 75%,1/3,3/8 and0.625 from least to greatest
Oksanka [162]

Answer:

1/3 , 3/8 , 0.625 , 75%

Step-by-step explanation:

75/100 = 0.750

1/3 = 0.330

3/8 = 0.375

5 0
3 years ago
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Scorpion4ik [409]

Answer:

The answer is 2 times x.

Step-by-step explanation:

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(−2)∙(2a−b)+3(a+b) plz help
tangare [24]

Answer:

-a+5b

i hope this help you out ;)

3 0
3 years ago
I need help on this​
ElenaW [278]
The proof is because it has a right angle.... I think :)
5 0
2 years ago
A skate ramp is 4.2 meters long. It rises up 1.7 meters. What’s is the angle of elevation to the nearest tenth of a degree?
Kipish [7]
Θ
=
arcsin
(
.7
4.2
)
≈
10
∘
Explanation:
We view the ramp as a right triangle. The hypotenuse is 4.2 and the vertical side .7, which is opposite the angle
θ
we seek.
sin
θ
=
.7
4.2
=
1
6
I'm going to finish the problem but I'll note if we were actually building the ramp we don't need to know the angle; this sine is sufficient.
θ
=
arcsin
(
1
6
)
θ
≈
10
∘
which I think is a pretty steep ramp for a wheelchair.
There will be another inverse sine that is the supplementary angle, around
170
∘
, but we can rule that out as a value for a ramp wedge angle.
4 0
3 years ago
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