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2 years ago

A circle with a diameter of 4 inches has what are HELP FAST!!!! will give you 5 star rate and 12

Mathematics

1 answer:

Dafna11 [192]2 years ago

7 0

Answer:

A= 12.57

C= 12.57

Step-by-step explanation:

you didn't say what i'm finding on the circle so here is the area and the circumference

A=πr^2

A=3.14*2^2

A= 12.57

C=2πr

C= 2*3.14*2

C=12.57

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2. Describe how to use the conjugate to divide 2 − i by 3 + 2i, and then find the quotient.

DaniilM [7]

Answer:

$\frac{4}{13}-\frac{7}{13}i$

Step-by-step explanation:

$\frac{2-i}{3+2i}$

Multiply and divide by the conjugate.

The conjugate is the denominator with the sign of the complex number the opposite of the denominator.

$\frac{2-i}{3+2i}\frac{3-2i}{3-2i}\\ =\frac{2\times (3-2i)-i\times (3-2i)}{3^2-(2i)^2}\\ =\frac{6-4i-3i+2i^2}{9+4}\\ =\frac{4-7i}{13}\\ =\frac{4}{13}-\frac{7}{13}i$

Quotient = $\frac{4}{13}-\frac{7}{13}i$

7 0

2 years ago

2(x+4)/3 =12<br><br> What is da answearrrrrr

dem82 [27]

Answer:

x = 14

Step-by-step explanation:

Given

$\frac{2(x+4)}{3}$ = 12

Multiply both sides by 3 to clear the fraction

2(x + 4) = 36 ( divide both sides by 2 )

x + 4 = 18 ( subtract 4 from both sides )

x = 14

4 0

2 years ago

Read 2 more answers

Solve for h.<br> h - 6 =<br> =<br> 7

MrRissso [65]

Answer:

Step-by-step explanation:

Solve for h.

h - 6 = 7

h = 7 + 6

h = 13

------------------

check

13 - 6 = 7

7 = 7

the answer is good

6 0

2 years ago

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The area of the base of the cylinder is 78.5 in² . What is the volume of the cylinder

Bad White [126]

Answer:

The volume of the cylinder would probably me 54? dont quote me I am not 100 percent sure, but if you need any help feel free to message me!

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3 years ago

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