ANSWER FAST PLEASE!!!!!!!!!!!!!!!!!!!!

Large dice has a side length of 9.2 cm. estimate surface area of the cube

Crank

The surface area is 507.84 or 508 if you round up

8 0

4 years ago

The electric cooperative needs to know the mean household usage of electricity by its non-commercial customers in kWh per day. A

anygoal [31]

Answer:

The 90% confidence interval for the mean usage of electricity is between 17.4 kwH and 17.6 kwH

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.9}{2} = 0.025$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$

So it is z with a pvalue of 1-0.05 = 0.95, so z = 1.645

Now, find the margin of error M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

So

$M = 1.645*\frac{2.4}{\sqrt{796}} = 0.14$

The lower end of the interval is the mean subtracted by M. So 17.5 - 0.14 = 17.4 kwH

The upper end of the interval is M added to the mean. So 17.5 + 0.14 = 17.6 kwH

The 90% confidence interval for the mean usage of electricity is between 17.4 kwH and 17.6 kwH

4 0

3 years ago

write an algebraic expression for the interest earned on a $15000 deposit for a t months at 1.75% interest, compunded continuous

Tom [10]

Y=15000 e^(0.0175×t/12)

Y future value

15000 present value

E constant

1.75/100=0.0175 Interest rate

T time

12 number of months in a year

Hope it helps!

5 0

3 years ago

Quiana took out a loan to pay for a new car initially she owed the lender 15,234.68. she has repaid 247.43 of the loan each mont

mario62 [17]

Given Information:

Initial amount of loan = $15,234.68

Monthly payment = $247.43

Number of months = 5

Required Information:

Net change in loan = ?

Answer:

Net change in loan = $1,237.15 = $1,237(3/20)

Step-by-step explanation:

Quiana owed her lender an amount of 15,234.68 initially, she repaid the lender each month with an amount of $247.43 for 5 months, so the total amount that she repaid is

Total amount repaid = Monthly payment*Number of months

Total amount repaid = $247.43 × 5

Total amount repaid = $1,237.15

The remaining owed amount is given by

Balance = Initial amount of loan - Total amount repaid

Balance = $15,234.68 - $1237.15

Balance = $13,997.53

So the net change to the loan from Quiana's perspective over the past 5 months is,

Net change in loan = Initial amount of loan - Balance

Net change in loan = $15,234.68 - $13,997.53

Net change in loan = $1,237.15

or

Net change in loan = $1,237(3/20)

Therefore, the net change to the loan from Quiana's perspective over the past 5 months is $1,237.15

6 0

3 years ago

What is the square root of r64?

ohaa [14]

Answer is r32 because it is the square root of an exponent you must divide it.

5 0

4 years ago

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