All categories

2 years ago

What is the radius of a sector of a circle with the central angle of measure 45 and whose area is 9/8 pi cm^2

Mathematics

1 answer:

larisa86 [58]2 years ago

5 0

The radius of the sector of the circle with the given area is: B. 3.

<h3>What is the Area of a Sector?</h3>

Area of sector of a circle = ∅/360 × πr².

Given the following:

Area of sector = 9/8 π cm².

∅ = 45 degrees

Plug in the values into the formula

9/8π = 45/360 × πr²

1.125 = 0.125 × r²

1.125/0.125 = r²

9 = r²

r = 3 cm

Learn more about the area of sector on:

brainly.com/question/22972014

#SPJ1

You might be interested in

Can you please tell me how to solve this?

Sedaia [141]

The answer is 142°

Explanation:

angle 1 and angle 2 form are supplementary.

m∠1 + m∠2 = 180°

38° + m∠2 = 180°

m∠2 = 180° - 38°

m∠2 = 142°

Hope it helps!

5 0

3 years ago

A chemist is using 333 milliliters of a solution of acid and water. If 19.6% of the solution is acid, how many milliliters of ac

sesenic [268]

65.27mm of acid is present in solution.

Step-by-step explanation:

Given,

Quantity of solution = 333mm

Acid Percentage = 19.6%

Quantity of acid = 19.6% of Quantity of Solution

$Quantity\ of\ acid=\frac{19.6}{100}*333\\Quantity\ of\ acid=\frac{6526.8}{100}\\Quantity\ of\ acid=65.27mm$

65.27mm of acid is present in solution.

Keywords: Percentage

Learn more about percentages at:

#LearnwithBrainly

3 0

3 years ago

Find the missing probability in the table below.<br> A. 0.25<br> B. 0.75<br> C. 0.15<br> D. 0.85

Furkat [3]

Answer:

The answer is option A

Hope this helps

3 0

3 years ago

Read 2 more answers

Help somebody thanks .

Fudgin [204]

It’s going to be 6 units

7 0

2 years ago

Let f(x)=1/2x2+4. The function g(x) is a vertical stretch of f(x) by a factor of 4. What is the equation of g(x)?

andrey2020 [161]

The equation of g(x) is $g(x)=2 x^{2}+16$

Explanation:

Given that the function f(x) is $f(x)=\frac{1}{2} x^{2}+4$

Also, given that the function g(x) is a vertical stretch of f(x) by a factor of 4.

We need to determine the equation of g(x)

<u>Equation of g(x):</u>

The vertical stretch of the function can be determined by multiplying the factor 4 with the function f(x).

Thus, we have,

$g(x)=4 f(x)$

Substituting the values,we have,

$g(x)=4\left(\frac{1}{2} x^{2}+4\right)$

Simplifying the values, we get,

$g(x)=2 x^{2}+16$

Hence, the equation of g(x) is $g(x)=2 x^{2}+16$

6 0

3 years ago