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SpyIntel [72]
3 years ago
5

What is the area of a circle whose radius is 4 ft?

Mathematics
1 answer:
ExtremeBDS [4]3 years ago
6 0

Answer:

16π ft²

Step-by-step explanation:

The formula is [ A = πr² ]

A = π(4)²

A = 16π

Best of Luck!

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Rewrite the equation 4x + 4y = 20 in slope interception form
BARSIC [14]
Equation you asked: 4x +4y = 20, Rewritten equation: -1x + 5 

hope this helps.
4 0
4 years ago
solve this using pythagorean theorem please and give me the right answer and i will give YOU brainliest and a like in return.
Viktor [21]

Answer:

I could draw it out but the answer is 8.5!!

Step-by-step explanation:

a squared + b squared = c squared

so a is 8 and b is 3, c is the distance of the two

8 squared = 64

3 squared = 9

64 + 9 = c squared

73 = c squared

to remove an exponent of two, find the square root of the number (this can also be called finding the inverse). what you do to one side, do to the other

the square root of 73 = c

c = 8.5

brainliest appreciated, but happy to help!!

8 0
2 years ago
Read 2 more answers
You want to buy a new case for your iPhone. The case is $37 and the tax is 6%. WHAT IS THE TOTAL?
aliina [53]

Answer:

$39.22

Step-by-step explanation:

The case costs $37. $37 is 100% of the price of the case.

The tax is 6% of the cost of the case. When you add 6% to 100% you get 106%.

The total price including tax is 106% of the price of the case.

106% of $37 = 1.06 * $37 = $39.22

Answer: $39.22

8 0
3 years ago
Use the Pythagorean Theorem to determine how far the horizon line is from Felix when he is in the balloon.
neonofarm [45]

Answer:

Step-by-step explanation:

First, make sure all the units are the same. One is given in feet and the other is given in miles.

Let's convert everything to feet.

There are 5,280 feet in one mile.

So 3,959 times 5,280 is 2,090,3520

The horizon line will form a right angle so, the 2,090,3520 and the 127,851 can be used in the Pythagorean Theorem

2,090,3520^2 + 127,851^2

436,957,148,400,000 + 16,345,878,200

Then square root that answer to get

20,903,910.98 feet

6 0
3 years ago
The most recent poll of 50 randomly-selected members of a school club with a total of 80 members showed that 38 are planning to
melisa1 [442]

Answer with Explanation:

Total number of members in School Club = 80 members

Number of member randomly Selected,that is sample size used  (P) = 50 members

Number of members who are planning to vote for Talia = 38 members

Z Score for 95% confidence interval =1.96

it is given that Margin of Error ,E,of the poll using a 95% confidence interval=12%

E=\frac{Z*\sigma}{\sqrt{P}}\\\\ \frac{12}{100}=\frac{1.96 * \sigma}{\sqrt{50}}\\\\ \sigma=4.32890

Standard Deviation=4.3 (approx)

→95% confidence level for students who are planning to vote for Talia as president of the club lie between → 38 + 4.3 = 42.3 to 38 -4.3=33.7.

→So, members which will vote for Talia as president of the club lies between minimum of 33 members and maximum of 42 members.

5 0
3 years ago
Read 2 more answers
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