What is the midpoint of the segment shown below?

John ran 1 of a mile in 8 minutes. If he continues running 2 at that speed, how long will it take him to run one mile? A) 4 minu

Verizon [17]

Answer:

d 16 minutes

Step-by-step explanation:

1 mile equals 8 minutes

2 miles equals 16 minutes

4 0

3 years ago

What are the foci of the hyperbola whose equation is

makkiz [27]

I think the answer is D

4 0

3 years ago

Read 2 more answers

A cube has edges that measures 13 cm each find volume for a cube

Margaret [11]

Answer:

2197 cm^3

Step-by-step explanation:

V = s^3

V = (13 cm)^3

V = 2197 cm^3

7 0

3 years ago

A chemical company claims that its new additives increases gasmileage. As a pilot study, the company send 36 cars fueled withthe

8090 [49]

Answer:

Check Explanation

Step-by-step explanation:

Normally the mean mileage for the 36 cars without the additive is 25 miles per gallon of gas with a standard deviation of 2.4 mpg

With the additive, the mileage improves to 25.8 mpg.

The sample mean without additive is 25 mpg

The standard deviation of the distribution of sample means for mileage without additive = σₓ = (σ/√n)

where σ = normal standard deviation = 2.4 mpg

n = Sample size = 36

σₓ = (σ/√n) = (2.4/√36)

σₓ = 0.4 mpg

So, a normal distribution of sample means for mileage without gas should have 95% of the possible values between 2 standard deviations of the mean. That is, within 24.2 mpg and 25.8 mpg.

Therefore, a mileage of 25.8 mpg with the additive added cannot point at a significant effectiveness of the additive as this data has shown that 25.8 mpg is within the possible values for sample means for mileage without the use of additives.

Although, it does point at an improved performance with the additive because a sample mean of 25.8 mpg without the additive is on the outskirts of possible sample mean values.

Hope this Helps!!!

3 0

4 years ago

When she graduates college Linda will owe 43,000 in student loans. The interest rate on the federal Liana is 4.5 % and the rate

Amanda [17]

Answer:

federal loan amount = $29,000

private loan amount = $14,000

Step-by-step explanation:

Total amount is 43000

Let amount in federal be f

and

amount in private be 43,000 - f

Interest rate at federal is 0.045

Interest rate at private is 0.02

THus, we can form the equation shown below and solve:

f(0.045) + (43,000 - f)(0.02) = 1585

0.045f +860 - 0.02f = 1585

0.025f = 725

f = 29,000

and on private = 43,000 - 29,000 = 14,000

Hence

federal loan amount = $29,000

private loan amount = $14,000

6 0

3 years ago