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3 years ago

SOMEONE FILL IN THAT BLANK PLEASE !!

Mathematics

1 answer:

ValentinkaMS [17]3 years ago

7 0

Answer:

40,000

Step-by-step explanation:

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A light flashes every 8 seconds how many times will it flash in 3 minutes

pogonyaev

Answer:

22 times.

Step-by-step explanation:

3 minutes = 180 seconds.

180 divided by 8 = 22.5

The light only flashed 22 times.

3 0

3 years ago

Mike's car broke down 5 miles from the auto shop. If he can push his car 1,056 feet per hour, how many hours will it take him to

Alinara [238K]

Answer:

It'll take 25 hours to get to the auto shop

Step-by-step explanation:

Given

Distance = 5 miles

Speed =1056 feet per hour

Required

How long will it take to the auto shop

This can be solved using Speed's formula;

$Speed = \frac{Distance}{Time}$

Substitute values for Speed and Distance

$\frac{1056 ft}{hr} = \frac{5 miles}{Time}$

1 mile = 5280 feet;

So:

$\frac{1056 ft}{hr} = \frac{5 * 5280 ft}{Time}$

$\frac{1056 ft}{hr} = \frac{26400ft}{Time}$

Cross Multiply

$Time * 1056ft = 26400ft * hr$

Divide both sides by 1056ft

$Time * \frac{1056ft}{1056ft} = \frac{26400ft * hr}{1056ft}$

$Time = \frac{26400ft * hr}{1056ft}$

$Time = 25hr$

Hence, it'll take 25 hours to get to the auto shop

3 0

4 years ago

Suppose we select a simple random sample of size n=250 from a large population with a proportion p of successes. Let p be the pr

Tom [10]

Answer:

B.0.15

Step-by-step explanation:

To approximate a binomial distribution as a normal distribution, two conditions must be met:

np > 10

nq = n (1−p) > 10

Here, n = 250. Check each value of p to see if it meets the conditions.

A. p = 0.03

np = 7.5, nq = 242.5

B. p = 0.15

np = 37.5, nq = 212.5

C. p = 0.02

np = 5, nq = 245

D. p = 0.97

np = 242.5, nq = 7.5

E. p = 0.99

np = 247.5, nq = 2.5

Of the five choices, only B meets both conditions.

6 0

3 years ago

Finally, you make an approximately circular yard using 80 ft of fence. What is the area of the yard? (Hint: First find the radiu

Pavel [41]

Since the circumference is 80, you know that the equation used was:
$\pi d = 80$
Divide by pi and you'd get d = 25.465
Divide that by 2 to get your radius.
25.465 / 2 = 12.723 = r

The area formula for a circle is $\pi r^2$
So, $\pi (12.723)^2$ = 508.544 square feet