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3 years ago

The radius of a semicircle is 5 feet. What is the semicircle's diameter?

Mathematics

2 answers:

Naddika [18.5K]3 years ago

7 0

Answer:

The diameter of the semicircle is 10 feet.

Step-by-step explanation:

This is because d=r2 or diameter=radius*2

ki77a [65]3 years ago

6 0

Answer:

Step-by-step explanation:

$Diameter= 2* Radius\\D = 2* 5\\D= 10$

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Figure a is dilated by a scale factor of 1/2 to form figure b. What is the length of x?

PIT_PIT [208]

Answer:

The correct option is 3. The value of x is 8 inches.

Step-by-step explanation:

It is given that Figure A is dilated by a scale factor of 1/2 to form Figure B. It means both figure are similar and corresponding sides of similar figures are proportional.

$\text{scale factor}=\frac{\text{Side of image}}{\text{Side of preimage}}$

$\frac{1}{2}=\frac{x}{16}$

Multiply both sides by 16.

$\frac{16}{2}=x$

$8=x$

Since scale factor is 1/2, so we can directly say that the side length of image is half of the corresponding side of preimage.

The length of x is 8 inches. Therefore the correct option is 3.

3 0

3 years ago

Read 2 more answers

3. f(-4) – 3.g(-2) =

Finger [1]

I got:
-2(2f-3g)

explanation:
used communicative property

6 0

3 years ago

Please help thanks :)

noname [10]

Answer:

The first choice, students tend to have less siblings than teachers

Step-by-step explanation:

If you look at the dot plots you notice that the teachers have more numbers than the students do and that the students have less sibling. It is not answer 2 because the students have less sibling, it is not answer 3 b/c they do not have the same range, and it is not number 4 because they do not look the same or have the same shape.

3 0

2 years ago

What is the image of (−4,−12) after a dilation by a scale factor of 1/4 centered at the origin?

Rama09 [41]

Answer:

It would be (-1,-3)

Step-by-step explanation:

All you have to do is divide your point by 4, since it's a fractions. If it's not, multiply.

-4 / 4 = -1

-12 / 4 = -3

5 0

3 years ago

Jim had some dimes, quarters, and nickels. First, he counted only the dimes and quarters and found that he had 9 coins. Then, he

Olegator [25]

Answer:

$1.90

Step-by-step explanation:

Represent the numbers of nickels, dimes and quarters by n, d and q.

Then: d + q = 9, or q = 9 - d.

Also, n + d = 10

Lastly, n + d + q = 15.

Let's substitute 9 - d for q in the equation immediately above:

n + d + (9 - d) = 15, or n + 9 = 15. Then n must be 6.

In summary, Jim has 6 nickels, (10 - 6) dimes and (9 - 4) quarters, or:

6 nickels, 4 dimes and 5 quarters

Thus, he has 5($0.05) + 4($0.10) + 5($0.25), or

$0.25 + $0.40 + $1.25, or $1.90

7 0

3 years ago

The radius of a semicircle is 5 feet. What is the semicircle's diameter?​

The radius of a semicircle is 5 feet. What is the semicircle's diameter?