1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
storchak [24]
2 years ago
13

Find the exact area of the circle with the given radius. r = 4.5 m

Mathematics
1 answer:
Alexus [3.1K]2 years ago
4 0
The area of a circle is Pi * R^2 (or R * R).
Since we have our radius, R, we can solve.
With our given answer choices, we do not need to multiply R by Pi, instead we will square R, as that's our only option.
4.5 x 4.5 = 20.25.
Our area is now 20.25Pi.
Your answer is C.) 20.25Pi.
I hope this helps!
You might be interested in
May Someone Plz Answer This problem <br> -.8x+40-8x-35
STALIN [3.7K]
-0.8x+40-8x-35

(Collect like terms)

-8.8x+40-35

(Subtract the numbers)

=-8.8x+5
5 0
3 years ago
Read 2 more answers
a sinusoid always function has an amplitude of 3, a frequency of 1/8pi, and a midline at 2. Which of the following equations sat
Katen [24]

Answer:

The correct option is;

f(x) = 3·sin x/8·π + 2

Step-by-step explanation:

The given parameters for the sinusoidal function are;

Amplitude of oscillation = 3

Frequency of oscillation = 1/8·π

Midline of oscillation= 2

The general form of sinusoidal equation is y = A·sin(B(x - C)) + D

Where;

A = The amplitude

B = The frequency

C = The horizontal shift

D = The midline or vertical shift

Substituting the given values into the general form of sinusoidal equation, we have;

f(x) = y =  3·sin(1/8·π(x - 0)) + 2 = 3·sin(x/8·π) + 2

Which gives;

f(x) = 3·sin(x/8·π) + 2.

5 0
3 years ago
Triangles Q R S and X Y Z are shown. Angles Q S R and X Z Y are right angles. Angles Q R S and X Y Z are congruent. The length o
kumpel [21]

Answer:

Three-fourths

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

∠QSR≅∠XZY ---> given problem

∠QRS≅∠XYZ ---> given problem

so

△QRS ~ △XYZ ----> by AA Similarity theorem

Remember that, if two triangles are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent

That means

\frac{QS}{XZ}=\frac{QR}{XY}=\frac{RS}{YZ}

∠Q≅∠X

∠R≅∠Y

∠S≅∠Z

<em>In the right triangle XYZ</em>

Find the tangent of angle X

tan(X)=\frac{YZ}{XZ} ---> opposite side angle X divided by adjacent side angle X

substitute the given values

tan(X)=\frac{9}{12}

Simplify

tan(X)=\frac{3}{4}

Remember that

∠Q≅∠X

so

tan(Q)=tan(X)

therefore

tan(Q)=\frac{3}{4} ---->Three-fourths

7 0
2 years ago
Read 2 more answers
Simplify the following expression.
Kamila [148]

Answer:

the answer is 5

Step-by-step explanation:

6 0
3 years ago
Honi is looking at a map with a scale of 1/4 in. = 20 miles. She measured the distance from Niceville to Live Oak as 2.5 in. She
expeople1 [14]

Answer:Honi made a mistake in Step 4. 50 divided by 1/4 is actually 200

4 0
3 years ago
Other questions:
  • (3.5 x 10^-15) (3 x 10^-10) in scientific notation.
    13·1 answer
  • If a two digit number has x for a tens digit and a units digit that is 3 more than x. What is the value of the number in terms o
    10·1 answer
  • Convert 1.53 feet per second to feet per hour.
    11·2 answers
  • What’s the perimeter?
    6·1 answer
  • The account executive of a brokerage firm has recommended that one of her customers consider stock from five aerospace companies
    6·1 answer
  • Math- look at the picture below
    13·2 answers
  • The area of this rectangle is 3x2. What does the coefficient 3 mean in terms
    9·1 answer
  • PLEASE ANSWER IM DESPERATE
    5·2 answers
  • Find the values of x and y.<br>A. X=15, y=18. B. x=17, y=14. C. x=14, y=17 D. x=18, y=15​
    11·1 answer
  • Select all numbers that are solutions to the inequality w &lt; 1.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!