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nikklg [1K]
3 years ago
9

A line has a slope of 8 and crosses the y-axis at (0, 12). Express this line in slope-intercept form.​

Mathematics
1 answer:
Elina [12.6K]3 years ago
6 0

Answer:

y = 8x + 12

Step-by-step explanation:

Slope-intercept form is y = mx + b where  m  is the slope and  b  is the y-intercept.

The problem just handed you everything you need!  Awesome!

Replace  m  with 8.  Replace b with 12.

If a line crosses the y-axis at (0, b), then b is the y-intercept.

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If both the length and width of a rectangle are doubled, how is the area of the rectangle changed?
Law Incorporation [45]

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2 years ago
A parking lot is 100 yards long what is the length off 3/4if the parking lot
andriy [413]
I think you mean:
A parking lot is 100 yards long. What is the length of 3/4 of the parking lot?

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4 0
3 years ago
Mr. Smith is flying his single-engine plane at an altitude of 2400 feet. He sees a cornfield at an angle of depression of 30º. W
Svet_ta [14]

Answer:

Height of the fighter plane =1.5km=1500 m

Speed of the fighter plane, v=720km/h=200 m/s

Let be the angle with the vertical so that the shell hits the plane. The situation is shown in the given figure.

Muzzle velocity of the gun, u=600 m/s

Time taken by the shell to hit the plane =t

Horizontal distance travelled by the shell =u

x

t

Distance travelled by the plane =vt

The shell hits the plane. Hence, these two distances must be equal.

u

x

t=vt

u Sin θ=v

Sin θ=v/u

=200/600=1/3=0.33

θ=Sin

−1

(0.33)=19.50

In order to avoid being hit by the shell, the pilot must fly the plane at an altitude (H) higher than the maximum height achieved by the shell for any angle of launch.

H

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=u

2

sin

2

(90−θ)/2g=600

2

/(2×10)=16km

4 0
2 years ago
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