All categories

3 years ago

If one point on a line is (-2,8) and the line’s slope is -3/2 find the y intercept

Mathematics

1 answer:

stellarik [79]3 years ago

5 0

Answer:

The y intercept is 5

Step-by-step explanation:

The slope intercept form of an equation is

y = mx+b where m is the slope and b is the y intercept

y = -3/2x+b

Substitute the point into the equation and solve for b

8 = -3/2(-2)+b

8 = 3+b

8-3 =b

5=b

The y intercept is 5

You might be interested in

Which link would provide the best supporting information for this piece?

konstantin123 [22]

Answer: A

Step-by-step explanation:

8 0

3 years ago

suppose a triangle has two sides of length 42 and 35 and that the angle.between these two sides is 120° what is the length of th

pickupchik [31]

Answer:

The length of the third side of the triangle is $7\sqrt{91}\ units$

Step-by-step explanation:

Let

c ----> the length of the third side of the triangle

we know that

Applying the law of cosines

$c^2=a^2+b^2-2(a)(b)cos(C)$

we have

$a=42\ units\\b=35\ units\\C=120^o$

substitute the given values

$c^2=42^2+35^2-2(42)(35)cos(120^o)$

$c^2=2,989-2,940cos(120^o)$

$c^2=4,459\\c=\sqrt{4,459}\ units\\c=7\sqrt{91}\ units$

6 0

3 years ago

the space station has an average orbit of 250 miles above the earth. how many pennies would it take to make a stack that high? p

KatRina [158]

250 miles is 1 320 000 feet.

A penny is 0.005 feet tall.

You'd need 1 320 000 / 0.005 = 264 000 000 pennies to make a stack that high

7 0

2 years ago

PLEASE HELP!!! This is a trigonometry question on right angle triangle. A bullet is found embedded in the wall of a room 2.9 m a

Ann [662]

2.857 m away from the wall. because if it is 1.3 m off the ground when fired then you just subtract that from 2.9 to get 1.6 then divide that by sin (38.2) to get 2.857 m from the wall.

6 0

3 years ago

Convert 7 over 8 to a decimal and tell whether it terminates or repeats.

diamong [38]

7 over 8 can be seen as
$\frac{7}{8}$
or 7÷8.

This is what this question will look like on a calculator.
$7 \div 8 = 0.875$
As you can see, you will only get 0.875 so your answer will be terminating.

Terminating = Answer Stops
ex.) 0.784 or 0.25

Repeating = Answer Repeats
ex.) 0.5555... or 1.33...

3 0

4 years ago

Read 2 more answers