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MariettaO [177]
2 years ago
11

What is the circumference of the circle 5 in

Mathematics
1 answer:
Ganezh [65]2 years ago
8 0

Answer:

The circumference of this circle is 10pi inches, which is roughly 31.4 inches.

Step-by-step explanation:

Use the formula for circumference. C= 2*radius*pi.

2*5*pi=10pi

pi=3.14, so multiply that by 10

3.14*10=31.4 inches.

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Solve the equation using the quadratic formula. Enter each solution in simplest form.
sergeinik [125]

For this case we have the following quadratic equation:

x ^ 2-4x + 23 = 0

The solutions will be given by:

x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2a}

Where:

a = 1\\b = -4\\c = 23

Substituting the values we have:

x = \frac {- (- 4) \pm \sqrt {(- 4) ^ 2-4 (1) (23)}} {2 (1)}\\x = \frac {4 \pm \sqrt {16-92}} {2}\\x = \frac {4 \pm \sqrt {-76}} {2}\\x = \frac {4 \pm \sqrt {76i ^ 2}} {2}\\x = \frac {4 \pmi \sqrt {76}} {2}\\x = \frac {4 \pmi \sqrt {2 ^ 2 * 19}} {2}\\x = \frac {4 \pm2i \sqrt {19}} {2}\\x = 2 \pm i\sqrt {19}

We have two roots:

x_ {1} = 2-i \sqrt {19}\\x_ {2} = 2 + i \sqrt {19}

ANswer:

x_ {1} = 2-i\sqrt {19}\\x_ {2} = 2 + i\sqrt {19}

6 0
3 years ago
1. A woman deposits $10000 in a bank. The interest rate per annum is 8% How much will she have in the account in 15 years to the
jeka57 [31]

Answer:

The answer is $31,722.

Step-by-step explanation:

10,000 x 1.08 = 10,800

Do this 14 more times, your answer times 1.08.

You end up with 31,721.6911418.

Rounded to the nearest dollar, that would be $31,722.

4 0
2 years ago
You have just spoken to your insurance agent and you are interested in investing in a 20-Payment Life insurance policy. Given th
Lesechka [4]

Answer: You can use this to help you out:

Determine the term life insurance amount per thousand on a 20-year-old male for a 10-year policy given that the face value of the policy is $65,000 and the annual premium is $291.85.

a.

$0.00449

c.

$0.2227

b.

$4.49

d.

$222.72

First find how many thousands on the amount of the face value

You do that by dividing the amount of the face value by 1000

65,000÷1,000=65

So the term life insurance amount per thousand is

291.85÷65=4.49...answer

Read more on Brainly.com - brainly.com/question/4241979#readmore

6 0
3 years ago
Read 2 more answers
Which two points are not on the graph 2x+3y-z-12=0
kvv77 [185]
Plug all three answers in and see which one does not equal 0
A: 2(1)+3(1)-7-12≠0
B: 2(6)+0-0-12=0
C: 2(3)+3(3)-3-12=0

So A. I don't know why it says two (?) points?
5 0
3 years ago
What operation do you use to convert from a smaller measurement unit?
tigry1 [53]

Answer:

You can use similar processes when converting from smaller to larger units. When converting a larger unit to a smaller one, you multiply; when you convert a smaller unit to a larger one, you divide.

Step-by-step explanation:

Please give me the brainiest answer

5 0
3 years ago
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