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Montano1993 [528]
2 years ago
15

Write the equation of the line that passes through the points (0, -5) and (4,3)

Mathematics
1 answer:
Ipatiy [6.2K]2 years ago
5 0

Answer:

y = 2x - 5

Step-by-step explanation:

See the attached images for workings

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Stephen earned scores of 88 points, 94 points. 89 points, and 85 points on four tests.
Inessa05 [86]

answer

94

set up equations

average = total points / number of tests

total points = test1 + test2 + test3 + test4+ test5

total points = 88 + 94 +89 + 85 + test5

total points = 356 + test5

plug total points into first eqation and rearrange

average = total points / number of tests

average = (356 + test5)/number of tests

average * number of tests = 356 + test5

test5 = average * number of tests - 356

plug in values for average and number of tests

test5 = average * number of tests - 356

test5 = 90 * 5 - 356

test5 = 94

3 0
3 years ago
Find c and round to the nearest tenth
Makovka662 [10]

Answer:

Step-by-step explanation:

<C = ?

a = 22

b = 20

c = 18

Formula

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

Solution

18^2 = 22^2 + 20^2 - 2*22*20*cos(C)

324 = 484 + 400 - 880*cos(C)

324 = 884 - 880*Cos(C)

-560 = - 880 * cos(C)              

-560 / - 880 = cos(C)

0.63636   =  cos(C)

C = cos-1(0.63636)

C =50.48

6 0
3 years ago
Read 2 more answers
Mean of 6 numbers is 41. Remove one number and the mean of the five numbers is 46. What is the unknown number
Alex17521 [72]

Answer:

- 16

Step-by-step explanation:

This is very tricky. Be careful how you do it.

The total of the six numbers is 6*41 = 246

The total of five numbers = 5*46 = 230

What have you you removed to make the number average go up with a smaller sample? The answer is a negative.

230 - 246 = - 16

6 0
3 years ago
In the diagram, the measure of angle 5 is (10x -9), and the measure of angle 7 is (9x). What is the measure of angle 6, to
Andre45 [30]

Answer:

The answer is option C, or 99 degrees

Explanation:

Hi there!

(next time, a picture of the graph would've been helpful)

The answer is 99 degree angle or C on E d g e n u i t y

Have a wonderful rest of your day!!

P.S. super sorry I was late, I just took the test today \(^u^\)

3 0
3 years ago
What is the surface area of a square pyramid with a base side lengths of 10 inches and a slant height of 14 inches
miskamm [114]

You could find the surface area using two different methods, but coming out with the same answer.

Method One: This method involves using an equation that helps finding the surface area for a square pyramid.

The equation: A+(1/2)ps=SA; we should break down what the letters stand for. A=Area of the base; the area of the base is 10×10=100 P= perimeter of the base; 10×4=40 S= Slant height;14

Let's put these values into the equation and find the surface area. 100+(1/2)(40)(14)=100+(20)(14)=100+280=380 The surface area is 380 in².

Method Two: The picture below shows how to lay out the square pyramid so you can find the area of each the shapes, then add them up. There are four triangles and a square.

Triangles: We use the equation (1/2)BH; let's plug the values in. 1/2(10)(14)=1/2(140)=70; there are four triangles, so let's multiply by four to find the area of all four of them triangles together. 70×4=280

Square: It's the side length squared. 10²=100; let's add everything together.

The four triangles+the square= the surface area

280+100=380

So, the surface area is 380 in².

4 0
3 years ago
Read 2 more answers
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