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3 years ago

The radius of a semicircle is 2 feet. What is the semicircle's diameter?

Mathematics

1 answer:

fomenos3 years ago

8 0

Answer:

11/7 feet

Step-by-step explanation:

Perimeter of a circle = pi

Semicircle would be 1/2 of pi

1/2 × 22/7 × 1

You must divide by one to get the value of 1/2

11/7 is the answer

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Jenny has $1,200 in her savings account. If the bank pays 3% interest per year on savings, how much interest does she earn in on

Strike441 [17]

Given:

Principal value = $1200

Rate of interest = 3% per year

To find:

The interest earned by Jenny in one year.

Solution:

Formula of interest:

$I=\dfrac{P\times r\times t}{100}$

Where, P is principal, r is rate of interest and t is time.

We have, P = 1200, r = 3, t=1. Putting these values, we get

$I=\dfrac{1200\times 3\times 1}{100}$

$I=\dfrac{3600}{100}$

$I=36$

The interest earned by Jenny in one year is $36.

Therefore, the correct option is A.

7 0

3 years ago

A five question multiple choice quiz has five choices for each answer. Use the random number table provided, with 0’s representi

katen-ka-za [31]

Found a similar question online. Is the attached picture the same one as yours? Are these the choices also?
a. 5%
b. 65%
c. 45%
<span>d. 25%

The answer is Letter D - 25%. Use the table and count the number of guesses that has two correct answers represented by 1. 01010, 10001, 11000, 01001, 00011 = a total of 5 numbers having 2 correct guesses out of 20 questions. Which means that there's twenty-five percent possibility of correctly guessing the answer out of 20 questions. 5/20 = 25%</span>

5 0

3 years ago

Which shows a correct order to solve this story problem? Allie, Serena, and Mikala went to the movies. They spent a total of $30

puteri [66]

30.90 + 8.50 + 3.96 = 43.36 (total cost)

If they are all splitting it evenly then divide by total ammount of people

43.36 / 3 = 14.45 each

The answer is A

3 0

3 years ago

Sandra calculated the distance between her home and New Orleans, , Louisiana. The scale on the map showed that 0.5 in = 20 miles

Delvig [45]

Given that 0.5 inch = 20 miles

so,

7.25 inches= x miles

0.5 x=145

x=145/0.5

x=290

so the answer is 290 miles

3 0

1 year ago

A wildlife sanctuary has two elephants. One has a weight of 11,028 pounds and the other has a weight of 5 1/2 tons. A platform c

Airida [17]

Answer:

The platform cannot hold both elephants.

Step-by-step explanation:

This problem is solved by conversion of units.

Elephant A weighs 11,028 pounds

Elephant B weighs 5 1/2 = 5.5 tons

The platform can hold 22,000 pounds

To see if the platform holds both elephants, the first step is converting the weigth of Elephant B to pounds.

Each ton has 2000 pounds.

So 5.5 tons have 5.5*2000 = 11000 pounds.

So Elephant B weighs 11000 pounds

Combined weights of Elephants A and B

11,028 + 11,000 = 22,028 > 22,000

The platform cannot hold both elephants.

6 0

4 years ago