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vodomira [7]
3 years ago
13

Write the equation for a line perpendicular to a line passing through points (-1,2) and (1,-8)

Mathematics
1 answer:
soldi70 [24.7K]3 years ago
3 0

Answer:

Step-by-step explanation:

Slope m = (-8-2)/(1+1)=-10/2 = -5

Perpendicular slope-1/m = -1/-5 = 1/5

Equation of a line with perpendicular slope is

y-y1=(-1/m)(x-x1)

y - 2 = (1/5)(x+1)

y =2 +(1/5)(x+1)

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Dhaulagiri is the 7th highest mountain in the world. Ms. Fink is walking through
11111nata11111 [884]

Answer:

4833 m

Step-by-step explanation:

Given that her angle of elevation at the first recording is 47.3 at an altitude of 4900 m

We use Pythagoras Theorem to get this done

We can say that the opposite of the angle is the altitude, while the hypotenuse of the triangle, is the distance between herself and the top

Using the sine angle rule, we have

Sine 47.3 = 4900 / h

h = 4900 / sin 47.3

h = 4900 / 0.7349

h = 6668 m

This means that she was 6668 m away from the top of the mountain

She then moves 1000 m closer to the mountain top, this means that our h = 6668 - 1000

Using the same sine angle rule, we have

Sine 58.5 = o / 5668

o = 5668 * sine 58.5

o = 5668 * 0.8526

o = 4833 m

She is 4833 m above the sea level

5 0
3 years ago
Solve the equation using the Zero-Product Property (X-9)(x+7)=0
aleksandr82 [10.1K]
(x-9)(x+7)=0
x-9=0 or x+7=0
x=9 or x=-7

:)
4 0
3 years ago
Can someone help me please
NikAS [45]
Justin rides 550 kilometers
or
justin rides 17 meter
6 0
3 years ago
Please help me with this one
Rasek [7]

Answer:

6 (2)^ = 6

6 (2)^2 = 24

a = 24

b = 6

y-intercept: (0,6)

y-intercept =

Step-by-step explanation:

6(2)^x

6 (2)^0 = 6 (a number ^0 = 1, 6 times 1 = 6)

6 (2)^2 = 6 x 4 = 24

8 0
3 years ago
Which 2 numbers have a mean of 10 and a range of 4?
Charra [1.4K]

Answer:

12 and 8

Step-by-step explanation:

basic knowledge of math i guess

hope that helps love

8 0
3 years ago
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