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igomit [66]
3 years ago
5

a line has a slope of 1/4 and passes through the point ( 0.2,4/5) find the value of b , the y-intercept.

Mathematics
1 answer:
NeX [460]3 years ago
6 0

Answer:

0.75

Step-by-step explanation:

i did it and got the wrong answers and it said the right answer is 0.75

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What is the absolute value of 2|x+5|-3=7
Paladinen [302]

Answer:

Step-by-step explanation:

x= -5 or x=2

that's what i think it is.

4 0
4 years ago
A research center is interested in investigating the height and age of children who are between 5 to 9 years old. In order to do
Rashid [163]

Answer:

0.940

Step-by-step explanation:

Given the data:

Age in years(X) _____Height(Y)

7 _________ 47.3

8 _________48.8

5 __________41.3

8 _________ 50.4

8 ___________51

7 __________47.1

7 __________46.9

7 ___________48

9 __________51.2

8 __________51.2

5 __________40.3

8 __________48.9

6 __________45.2

5 __________41.9

8 __________49.6

The proportion of Variation explained by the line of best fit in a regression model can be determined by calculating the Coefficient of determination (R²) of the model.

Using the online R² calculator, the variation in the sample values of height which is estimated by the model is 0.9696² = 0.94012416.

Hence about 0.94 or 94% variation in sample values of height is estimated by the model while (1 - 0.94 = 0.06 or 6%) is explained by other factors.

5 0
3 years ago
What is 3.4 as a percent
Vera_Pavlovna [14]

It's 340% if that's what you looking for.

4 0
3 years ago
Read 2 more answers
eeek i have no idea what im doing and i have like ten more questions to answer :( and i have no idea what im doing
myrzilka [38]

Answer:

25/64

Step-by-step explanation:

C=πd

find diameter:

small= 15 x 15= 225

large= 24 x 24= 576

multiply:

225 x 3.14= 706.5

576 x 3.14= 1808.64

ratio:

706.5/1808.64

reduce:

25/64

4 0
3 years ago
Read 2 more answers
How do you find the Slope of a line?
UNO [17]

You find the slope of the line by using the formula \frac{y2-y1}{x2-x1} where x1 and y1 is the first point, and x2 and y2 are the second point.

4 0
3 years ago
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