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2 years ago

Using α = .05, what are the critical values for the test statistic? (to 2 decimals) (+ or -

Mathematics

1 answer:

kari74 [83]2 years ago

7 0

I think it will be 0 and 0.1 simply go up 0.05 and down by 0.05 as well

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Specialty t-shirts are being sold online for $15 each, plus a one-time

krek1111 [17]

Answer:

Step-by-step explanation:

If x is the number of shirts you multiy by 15. 2.25 is the additional cost

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1 year ago

A nwuni, cherit and Orman entered into a business

FromTheMoon [43]

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2 years ago

Find the common factors of 5x²y and - 3x

rusak2 [61]

The common factor of 5x2 is y5x

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2 years ago

The coordinates of the endpoints of AB and CD are A(2,

Ratling [72]

Answer:

Option 1: CD is a perpendicular bisector of AB

Step-by-step explanation:

Let us find out the slopes of various line segments and the Distances and then we will draw the conclusions accordingly.

Formula to find slope

$m= \frac{y_2-y_1}{x_2-x_1}$

Formula to Find Distance between two points

$D=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}$

mAB ( represents , Slope of AB )

1. $mAC= \frac{3-2}{2-5}=\frac{1}{-3}=-\frac{1}{3}$

2. $mBC=\frac{2-1}{5-8}=\frac{1}{-3}=-\frac{1}{3}$

3. $mCD=\frac{5-2}{6-5}=\frac{3}{1}=3$

4. $AC=\sqrt{(3-2)^2+(2-5)^2} =\sqrt{(1)^2+(-3)^2}=\sqrt{1+9}=\sqrt{10}$

5. $BC=\sqrt{(2-1)^2+(5-8)^2} =\sqrt{(1)^2+(-3)^2}=\sqrt{1+9}=\sqrt{10}$

mAC = mBC , and C is common point , hence these three are collinear points making a straight line whole slope is $-\frac{1}{3}$

$mAB=-\frac{1}{3}$

$mCD=3$

$mAB \times mCD = -\frac{1}{3} \times 3 = -1$

Hence CD ⊥ AB

Also

From Point 4 and point 5 above , we see that

AC = CB

Hence CD bisect AB at C, also CD ⊥ AB

There fore

CD is a perpendicular bisector of AB

Therefor option 1 is true

4 0

2 years ago

About how much more is 22 to the 7 power and 22 to the 4 power

Bumek [7]

22 to the 7 power is 2494357888
22 to the 4 power is 234256

Just subtract those two numbers and you'll get that it's 2494123632

4 0

2 years ago