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2 years ago

How do you find the radius of a circle that has a circumference of 69.1?

Mathematics

1 answer:

r-ruslan [8.4K]2 years ago

8 0

Answer:

the anwser is 11

Step-by-step explanation:

You have to multiply 3.14 (pi) by The radius which is 69.1 and you will get your anwser. So it should look like this

A= pi r2

————— = 3.14(pi) x r2

r2 = 69.1

r = 11

hope this helps!!!! :)

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x^2+6x+4 Which of the following is equivalent to the expression above? Justify your answer. A) (x+3)^2+5 B) (x+3)^2-5 C) (x-3)^2

vaieri [72.5K]

Answer:

B) ( x+3)² - 5

Step-by-step explanation:

Given expression

x²+6x+4

Adding '9' and subtracting '9' of given expression

⇒ x² + 2 (3) (x) +(3)² -(3)² +4

(a + b)² = a² + 2 a b + b²

⇒ ( x+3)² - 9 +4

⇒ ( x+3)² -5

4 0

2 years ago

I serve a volleyball at a 730 angle with the horizontal, and an initial speed of 5.6 feet per second. What is the component form

noname [10]

You would split out the velocity into x and y components.
X component: 5.6cos(73)= 1.637i
Y component: 5.6sin(73)= 5.355j

Therefore velocity in its component form is 1.637i + 5.355j ft/s

4 0

2 years ago

Read 2 more answers

7. On a coordinate plane, a line goes through the point (10, 8.5) and models a proportional

Grace [21]

Answer:

Step-by-step explanation:

i am not sure

3 0

2 years ago

Helppp me pleaseee!!!!!!!

kenny6666 [7]

Answer:

V=πr2h

3=π·72·9

3≈461.81412

Step-by-step explanation:

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3 years ago

Solve each equation for the indicated variable. u = -3a - 3 , for a

MAXImum [283]

Answer:

$a = \frac{u + 3}{-3}$

Step-by-step explanation:

Isolate the variable, a. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

PEMDAS is the order of operation and stands for:

Parenthesis

Exponents (& Roots)

Multiplication

Division

Addition

Subtraction

First, add 3 to both sides of the equation:

u = -3a - 3

u (+3) = -3a - 3 (+3)

u + 3 = -3a

Next, divide -3 from both sides of the equation:

(u + 3)/-3 = (-3a)/-3

a = (u + 3)/-3

$a = \frac{u + 3}{-3}$ is your answer.

8 0

3 years ago