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3 years ago

Closing a credit card usually -- your debt ratio?

2 answers:

8 0

D) improves d) improvesd) improvesd) improvesd) improvesd) improvesd) improvesd) improvesd) improvesd) improvesd) improvesd) improvesd) improvesd) improvesd) improvesd) improvesd) improvesd) improvesd) improvesd) improvesd) improvesd) improvesd) improvesd) improves

fomenos3 years ago

3 0

the correct answe is INCREASES

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Let X be a discrete random variable with the moment generating function given as MX(t)=(1−0.2)+0.2et Calculate

Katyanochek1 [597]

Answer:

Step-by-step explanation:

just because whsusjeej

5 0

3 years ago

Ian purchased cans of soda for a party he was having. For every 12 cans of soda she paied $4.98. What is the cost per can of sod

adelina 88 [10]

Look at the attached picture

Hope it will be helpful to you

5 0

3 years ago

A new catalyst is being investigated for use in the production of a plastic chemical. Ten batches of the chemical are produced.

zzz [600]

Answer:

$CI=(66.54,78.46)$

Step-by-step explanation:

Given : A new catalyst is being investigated for use in the production of a plastic chemical. Ten batches of the chemical are produced. The mean yield of the 10 batches is 72.5% and the standard deviation is 5.8%. Assume the yields are independent and approximately normally distributed.

To find : A 99% confidence interval for the mean yield when the new catalyst is used ?

Solution :

Let X be the yield of the batches.

We have given, n=10 , $\bar{X}=72.5\%$ , s=5.8%

Since the size of the sample is small.

We will use the student's t statistic to construct a 995 confidence interval.

$\bar X\pm t_{n-1,\frac{\alpha}{2}}\frac{s}{\sqrt n}$

From the t-table with 9 degree of freedom for $\frac{\alpha}{2}=0.005$

$t_{n-1,\frac{\alpha}{2}}=t_{9,0.005}$

$t_{n-1,\frac{\alpha}{2}}=3.250$

The 99% confidence interval is given by,

$CI=72.5 \pm 3.25\frac{5.8}{\sqrt{10}}$

$CI=72.5 \pm 5.96$

$CI=(72.5+5.96),(72.5-5.96)$

$CI=(66.54,78.46)$

8 0

3 years ago

6x-8 = -4x+7 solve for x

Fantom [35]

Answer:

so look

Step-by-step explanation:

6x=7+8

2 Simplify 7+87+8 to 1515.

6x=156x=15

3 Divide both sides by 66.

x=\frac{15}{6}x=

4 Simplify \frac{15}{6}

to \frac{5}{2}

x=\frac{5}{2}x=

Done

Decimal Form: 2.5

5 0

3 years ago

Read 2 more answers

The observation deck of the willis tower in Chicago Illinois is 1353 feet above the ground elevators lift visitors to that level

Paul [167]

Answer: The the speed of elevators is 22.55.

Explanation:

It is given that observation deck of the willis tower in Chicago Illinois is 1353 feet above the ground elevators lift visitors to that level in 60 seconds.

The speed is the change in distance with respect to time.

$\text{Average Speed}=\frac{\text{Total Distance}}{\text{Total Time}}$

From the given information the total distance is 1353 and the total time is 60 seconds. So by the above formula we get,

$\text{Average Speed}=\frac{1353}{60}$

$\text{Average Speed}=22.55$

Therefore, the speed of elevators is 22.55.

8 0

3 years ago