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iren [92.7K]
3 years ago
15

Review questions

Mathematics
1 answer:
a_sh-v [17]3 years ago
6 0

Answer:

slope: -3/4    y-intercept: 3   equation: y=(-3/4)x+3

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I need help ASAP!’!!!!!!!!!!!
anastassius [24]
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3 years ago
Is anyone willing to please give me a brainliest on one of your questions? I just need 1 more brainliest crown, and then i go up
Rashid [163]

Answer:

yes suree

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Find the equation of the line parallel to y = -3x + 4 with a y-intercept of -10
rosijanka [135]
The correct answer is y=-3x-10

when a line is parallel to another line that means the slip of the lines are going to be the same and since the y-intercept of the other line was given to you, you would just put them together in one equation.
8 0
3 years ago
Read 2 more answers
Need help with this math question
olga_2 [115]

The correlation coefficient is -0.87; strong correlation

<h3>How to determine the correlation coefficient?</h3>

The given parameters are:

x = Time spent working out

y = lbs Overweight

Next, we enter the table of values in a graphing tool.

From the graphing tool, we have the following summary:

<u>X Values</u>

  • ∑ = 27.1
  • Mean = 2.71
  • ∑(X - Mx)2 = SSx = 22.569

<u>Y Values</u>

  • ∑ = 89
  • Mean = 8.9
  • ∑(Y - My)2 = SSy = 778.9

<u>X and Y Combined</u>

  • N = 10
  • ∑(X - Mx)(Y - My) = -114.19

<u>R Calculation</u>

r = ∑((X - My)(Y - Mx)) / √((SSx)(SSy))

r = -114.19 / √((22.569)(778.9))

r = -0.8613

Approximate

r = -0.87

This means that the correlation coefficient is -0.87

Also, the correlation coefficient is a strong correlation, because it is closer to -1 than it is to 0

Read more about correlation coefficient at:

brainly.com/question/27226153

#SPJ1

6 0
2 years ago
An object is launched upward at 64 ft/sec from a platform that is 80 feet high. What is the objects maximum height if the equati
Free_Kalibri [48]
Max height is the vertex
convert to vertex form (y=a(x-h)^2+k) by completeing the square

h(t)=-16(t²-4t)+80
h(t)=-16(t²-4t+4-4)+80
h(t)=-16((t-2)²-4)+80
h(t)=-16(t-2)²+64+80
h(t)=-16(t-2)²+144

vertex is (2,144)
at t=2, the height is 144

max height is 144ft
4 0
2 years ago
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