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Brilliant_brown [7]
3 years ago
12

Find the slope (m) of the line passing through the given points (-2, -1) and (-4, 7)

Mathematics
1 answer:
nekit [7.7K]3 years ago
5 0

Answer:

m = − 4

Step-by-step explanation:

Use the slope formula to find the slope  m .

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Find the missing angle:
sergey [27]

Answer:

40

Step-by-step explanation:

Going from left to right

We need to find the angle from the first triangle

The sum of the angles of a triangle is 180

80+25+x = 180

Combine like terms

105+ x = 180

Subtract 105 from each side

105-105+x = 180-105

x = 75

Then we have 3 angles that make a straight line and a straight line is 180

x + 50 + y = 180

75+ 50 + y = 180

Combine like terms

125 + y = 180

Subtract 125 from each side

125-125+y = 180-125

y = 55

We now have the triangle on the right

The angles add to 180

55+85+ ? = 180

Combine like terms

140+ ? = 180

Subtract 140 from each side

140+?  - 140 = 180-140

? = 40

4 0
3 years ago
Find the missing length indicated?
kondor19780726 [428]

Answer:

D. 15

Step-by-step explanation:

Let the missing length be represented as x.

Thus:

(24 - x)/12 = x/20 => angle bisector theorem

Cross multiply

20(24 - x) = x(12)

480 - 20x = 12x

480 - 20x + 20x = 12x + 20x

480 = 32x

480/32 = 32x/32

15 = x

Missing length = x = 15

6 0
3 years ago
What is the equation of a circle whose center is (2,0) and has a radius= 9?
Flauer [41]
The equation of a circle is: (x - h)² + (y - k)² = radius² where (h, k) is the center. Now just plug in your given information and simplify.

(x - 2)² + (y - 0)² = 9²

Your equation is:
(x - 2)² + y² = 81
6 0
3 years ago
Read 2 more answers
Mr. Brown's salary is $32,000 and it increases by 3% each year. What is the explicit rule for this sequence in simplified form?
katovenus [111]

Answer:

This is the concept of geometric series. We are required to find the recursive formula for year n. Here we will use the formula;

nth=ar^(n-1)

where;

a=first term

r=common ratio

n=nth term

Thus

a=8.50

r=(8.85)/(8.50)=1.0412

thus the formula will be:

nth=8.50(1.0412)^n

3 0
3 years ago
Help me solve this statistics question please!!
Leni [432]

It's B, D, and E.

Hope ok. :)

7 0
3 years ago
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