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3 years ago

What's the radius of a circle with an area of 64 square feet?

Mathematics

2 answers:

bogdanovich [222]3 years ago

7 0

4.51 square feet is the answer

umka21 [38]3 years ago

6 0

The answer is A. 4.51 ft. Hope this helps! :)

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8 A video game that usually costs $50 is on sale for $32.50

finlep [7]

The video game is on 35% discount.

Step-by-step explanation:

Cost of video game = $50

Price on sale = $32.50

Amount of discount = Original price - price on sale

$Amount\ on\ discount = 50-32.50\\Amount\ on\ discount= \$17.5$

Percentage = $\frac{Dicount\ Price}{Original\ Price}*100$

$Percentage=\frac{17.5}{50}*100\\Percentage=\frac{1750}{50}\\Percenatge=35\%$

The video game is on 35% discount.

Keywords: Percentage

Learn more about percentages at:

#LearnwithBrainly

6 0

2 years ago

An advertisement claims a car can go from zero to 60 in 5 seconds. what is the rate of change of the car's speed?

Ugo [173]

Rate of change=(changespeed)/(changetime)=(s1-s2)/(t1-t2)
change is (0-60)/(0-5)=-60/-6=12
answer is 12 units per second

8 0

3 years ago

I will give brainly help.

Burka [1]

Answer:

Company G charges 5 more dollars per hour than Company H.

5 0

1 year ago

Read 2 more answers

What is √-11 in the form a+bi?

Mice21 [21]

Given:

The number is $\sqrt{-11}$ .

To find:

The a+bi form of given number.

Solution:

We have,

$\sqrt{-11}$

It can be written as

$\sqrt{-11}=\sqrt{-1\times 11}$

$\sqrt{-11}=\sqrt{-1}\times \sqrt{11}$ $[\because \sqrt{ab}=\sqrt{a}\sqrt{b}]$

$\sqrt{-11}=i\times \sqrt{11}$ $[\because \sqrt{-1}=i]$

$\sqrt{-11}=\sqrt{11}i$

Here, real part is missing. So, it can be taken as 0.

$\sqrt{-11}=0+\sqrt{11}i$

So, a = 0 and $b=\sqrt{11}$ .

Therefore, the a+bi form of given number is $0+\sqrt{11}i$ .

5 0

2 years ago

I just need help with filling in the blanks please and thank you.

poizon [28]

Answer:1)vertice 2) interesecting

Step-by-step explanation:

4 0

2 years ago