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3 years ago

If the radius is 6371, what is the circumference?

2 answers:

7 0

The formula to find the circumference is pi*radius^2. Since your radius is 6371, the radius squared is 40589641 and that times pi is 127451473. That is your circumference

Anni [7]3 years ago

3 0

In order to find the circumference of a circle, you must use the formula c=2* $\pi$ *r.

Since you're already given the radius, all you have to do is use the formula and do 2 times 3.14 times 6371 and you get 40009.88 as your circumference.

Would love brainliest and hope that helps!

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In an election, a candidate got 82% votes. He won the beating his rival candidate by 576 votes. How many votes were polled?

Slav-nsk [51]

Answer:

900

Step-by-step explanation:

A candidate got 82%votes.

Loosing candidate get=(100-82)=18%

Difference between two votes.

=(82-18)%=64%

Let be the Total vote is=x.

64% of the total vote=576

$Or, 64 \%\times x= 576$

$Or, \frac{64}{100} \times x = 576$

$Or,x= \frac{576 \times 100}{64}$

$Or,x=900$

∴The total votes that were polled are 900.

8 0

2 years ago

Chips Ahoy wants to perform a study to determine the number of chocolate chips in their cookies. To that end, they collected a s

Dahasolnce [82]

The formula for the confidence interval is given by

Sample mean + z*[σ/√n], and
Sample mean - z*[σ/√n]

We have:
Sample mean = 23.95
n = 40
σ = 2.55
z* for 99% confidence = 2.58

Substitute these values into the formula, we have

23.95 + (2.58)(2.55÷√40) = 24.99
23.95 - (2.58)(2.55÷√40) = 22.91

So the lower interval is 22.91 and the highest interval is 24.99

5 0

3 years ago

What can I do to 4 4 4 4 using pemdas to make it = 44

GaryK [48]

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4 0

2 years ago

Factor completely 2x^2+6x-80

Rom4ik [11]

Answer:

x= -8 , x=5

Step-by-step explanation:

2x^2+6x-80=0

x^2+3x-40=0

look for 2 numbers that their:

sum = 3

product = -40

(x+8)(x-5)=0

thus

x= -8 , x=5 (ANS)

7 0

2 years ago

What is the integer square root of 29

crimeas [40]

Answer:

5.38516480713

Step-by-step explanation:

I hope this helps.

3 0

2 years ago