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Basile [38]
3 years ago
11

Can somebody please give me thjs

Mathematics
1 answer:
Aliun [14]3 years ago
5 0
Can somebody please give me thjs and the answer is 4,860
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Below are some data examining whether reading the textbook for this course is related to class enjoyment.
qaws [65]

Answer:

13.36

Step-by-step explanation:

I will first create a table

X. Y. XY. X²

1. 20. 20. 1

2. 24. 48. 4

3. 35. 105. 9

4. 46. 184. 16

5. 67. 335. 25

6. 80. 480. 36

1. 12. 12. 1

2. 34. 68. 4

3. 34. 102. 9

5. 78. 430. 25

ΣX = 32

ΣY = 430

ΣXY = 1744

ΣX² = 130

n = 10

The formula for regression line is given as :

Y = a + bX

a = intercept

b = slope

The question requires us to find b which is the slope.

b = nΣXY-ΣXΣY/nΣX²-(ΣX)²

= 10x1744-32x430/10x130-(32)²

= 17440-13760/1300-1024

= 3680/276

= 13.36

b = 13.36

8 0
3 years ago
Help 20 points!
Sergio [31]

Answer:

remember its a right angle so 90

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Select all solutions for the equation (3x+5)(2x+8=0 0,3/5,-3/5 , 5/3, -5/3, 4 , -4
LUCKY_DIMON [66]

Answer:

- 5/3 and -4

Step-by-step explanation:

The given equation is:

(3x +5) (2x + 8) = 0

(3x + 5)= 0\ or\ (2x + 8) = 0

3x = -5\ or\ 2x = -8

x = \frac{-5}{3}\ or\ x=\frac{-8}{2}=-4

Therefore, the solutions for the equation are ( -5/3 and -4).

7 0
3 years ago
An angle measures 2 degrees more than 3 times it’s complement. find the measure of its complement.
LUCKY_DIMON [66]

If the angle is 90 degrees, then the complement would be 27, because 90 / 3 = 30, and 30 - 3 = 27. Basically, you divide the angle by 3 and subtract 3 to find the complement if this is the case.

6 0
3 years ago
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Help me please I'm so lost on this question
rusak2 [61]
Gisela has 135 CDs. Eleven are music. She has 3 times as many CDs as she has classical. How many rock CDs does Gisela have? A. 135, B. 124, C. 93, D. 31
8 0
3 years ago
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