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kykrilka [37]
3 years ago
13

"The fitted regression line will always run through the mean of the observed data. In other words, the point (x with bar on top,

y with bar on top) will always lie on the estimated (fitted) regression line. Is it true or false?"
Mathematics
1 answer:
Kamila [148]3 years ago
6 0
Great question goodluck in the future
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Write the ratio as a fraction: 630kilometers in 5hours. Simplify your answer.<br><br> ___ km/hour
Bad White [126]

Answer:

126/1=126

Step-by-step explanation:

630:5 as a fraction would be 630/5.

630/5 simplified would be 126/1.

Hope this helps :)

6 0
3 years ago
Read 2 more answers
Jane uses 8.4 pints of blue paint and white paint to paint her bedroom walls. 4/5 of the amount is blue paint, and the rest is w
Yuki888 [10]

Answer:

1.68 pints

Step-by-step explanation:

First you need to determine how much blue paint she used, then you can determine how much white paint she used. :)

4/5 of 8.4:

4/5 * 8.4 = 6.72 pints

Now we can determine how many pints of white paint she used by subtracting 6.72 from 8.4:

8.4 - 6.72 = 1.68

So she used 1.68 pints of white paint. :) Hope this helped!

4 0
3 years ago
Anybody know how to do this ?
Morgarella [4.7K]

Answer: Part a: x=sqrt(104) in; Part b: x=sqrt(5) in

Step-by-step explanation:

Part a:

Because the figure has a right angle (signified by the square), it is a right triangle. Therefore, the Pythagorean Theorem, a²+b²=c² where c is the hypotenuse (longest side) and a and b are the legs (shorter sides), applies. Thus:

a²+b²=c²

The 15 in side is opposite the right angle, so it is the hypotenuse.

The 11 in side and x in side are not opposite the right angle, so they are legs.

11²+x²=15²

121+x²=225

(121+x²)-121=225-121

x²=104

sqrt(x²)=sqrt(104)

x=±sqrt(104)

Reject x=-sqrt(104) because a negative side length in a triangle is impossible. Therefore,

x=sqrt(104) in

Part b:

The figure is a right triangle. Therefore, the Pythagorean Theorem (a²+b²=c²) applies. Hence,

5²+(2x)²=(3x)²

25+4x²=9x²

(25+4x²)-4x²=9x²-4x²

25=5x²

5=x²

sqrt(5)=sqrt(x²)

x=±sqrt(5)

Reject x=-sqrt(5) because a negative side length is impossible.

The answer must be x=sqrt(5) in.

6 0
3 years ago
Maria has 72 flowers and four vases she put the same number of flowers in each vase how many flowers are in one vase
Vlad [161]
The answer is 18. Divide 72 by four.
4 0
3 years ago
Please help! Alonzo wants to know the height of a tree in his yard. He measures his shadow to be 8.4 feet long and at the same t
MrRa [10]

Answer: 15 ft

Step-by-step explanation: shadow / height

8.4/6=1.4

21/1.4=15

7 0
3 years ago
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