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3 years ago

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The value of a car is $22,000. It loses 13.9% of its value every year. Find the approximate monthly decrease in value. Round you

r answer to the nearest tenth.

1 answer:

Inessa05 [86]3 years ago

4 0

Answer:

.200 because 22,000 % by 7 is 1540 which you divide by 10,000

Step-by-step explanation:

hope this helps

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A certain change in a process for manufacture of component parts is being considered. Samples are taken using both the existing

Katyanochek1 [597]

Answer:

a) The confidence interval is $0.00\leq\pi_1-\pi_2\leq0.02$ .

Step-by-step explanation:

We have to calculate a confidence interval (CI) of a difference of proportions.

For the existing procedure, the proportion is:

$p_1=75/1500=0.05$

For the new procedure, the proportion is:

$p_2=80/2000=0.04$

To calculate the CI, we need to estimate the standard deviation

$s=\sqrt{\frac{p_1(1-p_1)}{n_1} +\frac{p_2(1-p_2)}{n_2} }\\\\s=\sqrt{\frac{0.05(1-0.05)}{1500} +\frac{0.04(1-0.04)}{2000} }=\sqrt{ 0.000032 + 0.000019 }=\sqrt{ 0.000051 }\\\\s=0.007$

For a 90% CI, the z-value is 1.64.

Then, the CI is:

$(p_1-p_2)-z*\sigma \leq\pi_1-\pi_2\leq(p_1-p_2)+z*\sigma \\\\(0.05-0.04)-1.64*0.007\leq\pi_1-\pi_2\leq(0.05-0.04)+1.64*0.007\\\\0.01-0.01\leq\pi_1-\pi_2\leq0.01+0.01\\\\0.00\leq\pi_1-\pi_2\leq0.02$

6 0

3 years ago

8% of what number is 16

aliina [53]

200, because 8% is 8 parts of 100%. Then 1 part of that 100% is 16/8=2. Then 100% is the number i.e; 200

7 0

3 years ago

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Which expression represents the product of s and 39?<br>A=39-s<br>B=39÷s<br>C=39s<br>D=39+s

Degger [83]

The answer would be c because it means Multiply and whenever a variable is next to a number in this case 39s then that means it a multiplication
So C. 39s

4 0

2 years ago

What is 120% of $590

Nana76 [90]

Answer:

Tip

$708.00

Total

$1,298.00

Step-by-step explanation:

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3 years ago

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Vector u has its initial point at (-7,2) and it's terminal point at (11,-5). Vector v has a direction opposite that of vector u,

PSYCHO15rus [73]

Answer:

$3\vec{v} = ( - 21,54)$

Step-by-step explanation:

$\vec{u} = (18,- 7)\Rightarrow \vec{v} = ( - 7,18) \Rightarrow 3\vec{v} = ( - 21,54)$

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3 years ago