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GalinKa [24]
3 years ago
8

Help on #2 a,b,and c

Mathematics
1 answer:
Sati [7]3 years ago
4 0
A) 12 h (3600 s/h) (100 J/s) = 4,320,000 J = 4.32 x 10 6 J
B) 4.32 x 10 6 J x .2 = 864,000 J light
C) 4.32 x 10 6 J (1kWh/3.6 x 10 6 J) = 1.2 kWh
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Please help Right answers only!!!
sesenic [268]
To find a slope we have to use this equation:
(y2 - y1 )/(x2 - x1)
and we have two x's and y's
so we will put them in their places....so (1-(-5))/(4-2)
and we will get 6/2 which is 3
Its A.3
.............
5 0
3 years ago
An art dealer is trying to determine whether the age of a painting plays a significant role in its price at auction. She collect
klasskru [66]

Answer:

-0.20

Step-by-step explanation:

Given the data:

Age at auction (x) ____price sold (y)

391

51

32

84

47

104

88

43

470

51

Y:

76.9

95.4

86.3

49.3

80

57

47.8

80

70

86.9

General formula for a simple linear regression :

y = ab + c

Where ;

y = predicted variable ; a = slope / gradient

b = predictor / independent variable ; c = intercept

From the result obtained from the calculator :

y = -0.01246X + 74.65552

Correlation Coefficient is used to measure the strength of relationship between linear variables.

The regression Coefficient obtained is - 0.20

This shows that there is a weak negative correlation between the age at auction and the price at which painting is sold. This is because the negative sign means that value of y decreases as x increases or vice versa, however, due to a correlation vale which is closer to 0 than 1 or - 1, we can conclude that the negative relationship between the variables is weak.

5 0
2 years ago
When six is subtracted from five times a number, the result is 9
Andreas93 [3]

Answer: Think it is -3/5

Step-by-step explanation:

6-5(x)=9

6-5(-3/5)=9

6+3=9

9=9

4 0
3 years ago
Read 2 more answers
6. Complete the table for the given function.
Aleks [24]
How would be so that. Where is the graph
4 0
3 years ago
Simplify: 4x + 6(3x - 2) A) 10x - 12 B) 18x - 12 C) 22x - 12 D) 30x2 - 20x
makvit [3.9K]

the answer is defenitly c

that is the answer

4 0
2 years ago
Read 2 more answers
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