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elena-s [515]
2 years ago
12

A dartboard has a diameter of 30 inches. What are its radius and circumference?

Mathematics
1 answer:
inessss [21]2 years ago
4 0

Answer:

radius = 15 in.

circumference = 94.2 in.

Step-by-step explanation:

radius = diameter/2 = 30 in./2 = 15 in.

circumference = (pi)d = 3.14 * 30 in. = 94.2 in.

You might be interested in
— 25 — 3х + 5 or – 3х +5 — 31​
zysi [14]

Answer:

both should

be equal to hope my work is correct or helps

Step-by-step explanation:

first one

-25<-3x+5 subtract 5 from both sides

-25-5=-30

5-5=0

then divide by -3

-30 divided by -3 =10

x=10

so it is equal to not less than

second one

-3x+5<-31

subtract 5 from both sides 5-5=0

-31 -5=-36

then divide both sides by -3

x=12

1

6 0
2 years ago
Write the sum or difference in the standard form a + bi. ( 7 + 5i) - ( -9 + i)
Veseljchak [2.6K]
(7 + 5i) - ( -9 + i)
= 7 + 5i - (-9) - (i)
= 7 + 5i + 9 - i
= 16 + 4i

= 4i + 16
3 0
3 years ago
Find the Missing Numerator and Denominator
n200080 [17]

Answer:

  missing denominator: 5

  missing numerator: 3

Step-by-step explanation:

You know the product of fractions is formed by multiplying numerators and multiplying denominators.

  \dfrac{3}{d}\times\dfrac{n}{4}=\dfrac{3n}{4d}=\dfrac{9}{20}

This gives rise to two equations:

  3n = 9   ⇒   n = 3

  4d = 20   ⇒   d = 5

The missing denominator is 5; the missing numerator is 3.

__

  \dfrac{3}{5}\times\dfrac{3}{4}=\dfrac{9}{20}

7 0
2 years ago
Why can you use cross products to solve the proportion 18/5 = x/100 for x ?
Tcecarenko [31]

Answer:

Yes, you can use cross products to solve for x in this proportion. Also, x is 360.

Step-by-step explanation:

Yes, you can use cross products to solve for x in that proportion.

Here's how you do it :

\frac{18}{5} = \frac{x}{100}

We cross product, getting :

18 * 100 = 5 * x

1800 = 5x

Divide by 5 on both sides to get x by itself.

360 = x

Yes, you can use cross products to solve for x in this proportion. Also, x is 360.

Hope this helps, please mark brainliest if possible. Have a great day.

4 0
3 years ago
Write 8 19/20 as a decimal.
Kaylis [27]

Answer:

8.95

Step-by-step explanation:

Since 8 is a whole number it’s before the decimal. So,

8.

To turn a fraction to a decimal just divide the top number by the bottom. So,

19/20 = 0.95

8 + 0.95 = 8.95

Therefore, the answer is 8.95

7 0
2 years ago
Read 2 more answers
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