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2 years ago

10 m-1n-5 , for m = 10 and n= -2

Mathematics

1 answer:

trasher [3.6K]2 years ago

3 0

Answer:

da answer of da number iz 17

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A local trucking company fitted a regression to relate the travel time (days) of its shipments as a function of the distance tra

scZoUnD [109]

Answer:

4.038

Step-by-step explanation:

The simple regression model is:

$Time = \hat\beta _{0} + \hat\beta_{1}Distance = -7.126 + 0.0214Distance$ , then $\hat\beta_{1} = 0.0214$ .

The statistic calculated for the hypothesis test of statistical significance, for the slope, in a simple regression model is given by:

$t_{c} = \frac{\hat\beta_{1}-\beta_{1_{0}}}{SE}$

with $\hat\beta_{1}$ the slope estimator, $\beta_{1_{0}}$ the value of slope in the null hypothesis and $SE$ the standard error of the slope. Thus,

$t_{c} = \frac{0.0214-0}{0.0053} = 4.038$

5 0

2 years ago

Please help! It’s to early for my brain to function :/

almond37 [142]

Answer:

The answer is B

Step-by-step explanation:

Distance formula- √(x2-x1)² + (y2-y1)²

Step 1: Plug in your values.

√(4a-a)² + (0-(-2b)²

Step 2: Substitute

√(3a)² + (2b)²

It cannot be simplified anymore, so your answer is:

B (√(3a)² + (2b)²)

(Please give brainliest if it helps!)

6 0

1 year ago

[calculus] the distance from the point (6, -4) to the circle <img src="https://tex.z-dn.net/?f=x%5E2%2By%5E2-8y%3D0" id="TexForm

stealth61 [152]

Answer:

Option C.

The distance from the point to the circle is 6 units

Step-by-step explanation:

we know that

The distance between the circle and the point will be the difference of the distance of the point from the center of circle and the radius of the circle

step 1

Find the center and radius of the circle

we have

$x^{2} +y^{2}-8y=0$

Convert to radius center form

Complete the square

$x^{2} +(y^{2}-8y+16)=0+16$

Rewrite as perfect squares

$x^{2} +(y-4)^{2}=16$

The center is the point (0,4)

The radius is

$r^{2}=16\\r=4\ units$

step 2

Find the distance of the point from the center of circle

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

we have

(6,-4) and (0,4)

substitute the values

$d=\sqrt{(4+4)^{2}+(0-6)^{2}}$

$d=\sqrt{(8)^{2}+(-6)^{2}}$

$d=\sqrt{100}\ units$

$d=10\ units$

step 3

Find the difference of the distance of the point from the center of circle and the radius of the circle

$10\ units-4\ units=6\ units$

therefore

The distance from the point to the circle is 6 units

see the attached figure to better understand the problem

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3 years ago

6. Laura wants to buy a bike that costs $80. If she earns $13.75 per week mowing lawns, how

zloy xaker [14]

The answer is ____ I found this because ___ this was pretty difficult not gonna lie

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2 years ago

Simplify: 42 + 18 divided by 2 - (2 - 14)

sergey [27]

the answer for this question is 63

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3 years ago

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