4 years ago

Otto’s Autos buys a car for $12,000 and want to mark it up by 25%. How much will the new selling price be?

Mathematics

1 answer:

sp2606 [1]4 years ago

6 0

Answer:

15000

Step-by-step explanation:

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A police office claims that the proportion of people wearing seat belts is less than 65%. To test this claim, a random sample of

babunello [35]

Answer: 0.345

Step-by-step explanation:

Given: The the setup for this hypothesis test:

$H_0:p=0.65\\\\H_a:p$

Since , the alternative hypothesis is left tail , so the test is left tail test.

$P_0=0.65\\\\Q_0=1-0.65=0.35\\\\p=\dfrac{126}{200}=0.63$

The test static for population proportion is given by :-

$z=\dfrac{p-P_0}{\sqrt{\dfrac{P_0Q_0}{n}}}\\\\\Rightarrow\ z=\dfrac{0.63-0.65}{\sqrt{\dfrac{0.65-0.35}{126}}}=−0.409878030638\approx-0.4$

The p-value of z = $P(z$

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4 years ago

Find the given elements of matrix D:

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3 years ago

On a chilly afternoon in New Jersey, the temperature was 4 degrees Fahrenheit. By nightfall, the temperature dropped 9 degrees F

xeze [42]

-3 degrees Fahrenheit

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3 years ago

Read 2 more answers

Solve for y 5/8y = -1

dedylja [7]

Answer:

y = -8/5

Step-by-step explanation:

Step 1: Write equation

5/8y = -1

Step 2: Solve for y

Divide both sides by 5/8: y = -8/5

Step 3: Check

Plug in y to verify it's a solution.

Substitute: 5/8(-8/5) = -1
Multiply: -40/40 = -1
Divide: -1 = -1

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3 years ago

Which best describes the angles of some parallelograms? A. Four obtuse angles B. Four acute angles C. Two acute and two obtuse a

anyanavicka [17]

Some parallelograms have 2 obtuse and 2 acute angles.

Parallelograms may have all 90 degree angles as well. These are also called rectangles.

When you "bend" a rectangle it naturally forms 2 acute and 2 obtuse angles.

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