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Amiraneli [1.4K]
3 years ago
8

A mathematics teacher wanted to see the correlation between test scores and homework. The homework grade (x) and test grade (y)

are given in the accompanying
Mathematics
1 answer:
Alecsey [184]3 years ago
5 0

Answer:

Step-by-step explanation:

The homework  grade, to the nearest integer, for a student with a test grade of 68 is 69.

Step-by-step explanation:

The general form of the linear regression equation is:

Here,

y = dependent variable = test grade

x = independent variable = homework grade

a = intercept

b = slope

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linear equation in point slope form for a line that passes through the point (3,2) and has a slope of -4
RoseWind [281]

Answer:

  (c)  y-2 = -4(x-3)

Step-by-step explanation:

The point-slope equation of a line is ...

  y -k = m(x -h) . . . . . . line through point (h, k) with slope m

For (h, k) = (3, 2), and m = -4, the equation of the line is ...

  y -2 = -4(x -3)

4 0
3 years ago
What is the lateral surface area of a square pyramid with a side length 11.2 cm and a slant height 20 cm
madam [21]
Notice the picture below

the lateral area, or just the area of the sides, well, the sides are really just 4 triangles, so just get the area of each, and sum them up, that's the lateral area

3 0
3 years ago
Read 2 more answers
PLEASE HELP NOBODY WILL HELP ME I WILL GIVE BRAINLIEST
d1i1m1o1n [39]

Answer:

See below

Step-by-step explanation:

Let the number of Payday be p and Baby Ruth be b

<u>Then sub of the candy bars:</u>

  • p + b = 220
  • Payday candy bars worth ⇒ $2p
  • Baby Ruth candy bars worth ⇒ $3b
  • Total ⇒ $600

1. <u>Required equations:</u>

  • p + b = 220
  • 2p + 3b = 600

2. <u>Solving by substitution:</u>

p = 220 - b, consider it in the second equation

  • 2(220 - b) + 3b = 600
  • 660 - 2b + 3b = 600
  • 660 + b = 600
  • b = 660 - 600
  • b = 60

60 Baby Ruth candy bars sold

4 0
3 years ago
What is the vale of ■ in this equation?<br>7×9=(7×10)-(7×■)
aliina [53]
The answer is 1 because 7*9 is 63
7*10=70 70-7=63
5 0
3 years ago
Read 2 more answers
If y=6 when x=10 find x when y=18 equation
egoroff_w [7]
I believe x would equal to 30.

Since 6 * 3 =18, 10 * 3 = 30.
What you do to one side, you must do to the other.

Hope I helped!

6 0
4 years ago
Read 2 more answers
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