What is the area of the following circle?
Either enter an exact answer in terms of or use 3.14 fort and enter your answer as a decimal.
MA
As
d=8
MY
Co
MY
units

Answers

Answer 1

Answer:

[tex]A=50.24\ \text{unit}^2[/tex]

Step-by-step explanation:

Given that,

The diameter of the circle, d = 8 unit

Radius, r = 4 units

We need to find the area of the circle. The formula for the area of a circle is given by :

[tex]A=\pi r^2\\\\A=3.14\times 4^2\\A=50.24\ \text{unit}^2[/tex]

So, the area of the circle is equal to [tex]50.24\ \text{unit}^2[/tex].


Related Questions

slove this plzzz plzzz​

Answers

Answer:

an equilateral triangle have equal angles and equal sides.

so, side x and side bc are 12.

Answer:

It's going to be 12, so is the other size.

Step-by-step explanation:

You can see that in each corner, it shows the triangle is the same, which means it is equilateral, so the answer is 12 :D

Find the volume of the cylinder. Round your answer to the nearest tenth
3 m
5 m

Answers

Answer:141.4

Step-by-step explanation:

Find the third degree polynomial function that has an output of 40 when x=1, and has zeros −19 and −i?

Answers

Answer:

[tex]f(x) = (x + 19)(x^2 + 1)[/tex]

Step-by-step explanation:

Complex numbers:

The following relation is important for complex numbers:

[tex]i^2 = -1[/tex]

Zeros of a function:

Given a polynomial f(x), this polynomial has roots [tex]x_{1}, x_{2}, x_{n}[/tex] such that it can be written as: [tex]a(x - x_{1})*(x - x_{2})*...*(x-x_n)[/tex], in which a is the leading coefficient.

Has zeros −19 and −i

If -i is a zero, its conjugate i is also a zero. So

[tex]f(x) = a(x - (-19))(x - (-i))(x - i) = a(x+19)(x+i)(x-i) = a(x+19)(x^2 - i^2) = a(x + 19)(x^2 + 1)[/tex]

Output of 40 when x=1

This means that when [tex]x = 1, f(x) = 40[/tex]. We use this to find the leading coefficient a. So

[tex]f(x) = a(x + 19)(x^2 + 1)[/tex]

[tex]40 = a(20)(2)[/tex]

[tex]40a = 40[/tex]

[tex]a = 1[/tex]

The polynomial is:

[tex]f(x) = (x + 19)(x^2 + 1)[/tex]

Nina took an exam. When her results came, she had 40% correct and 68% incorrect. Find the percent to correct answers to incorrect answers.

Answers

Answer: She had 27.2% correct.

Step-by-step explanation: To find the percent, we can divide the part and whole then multiply the quotient by 100. After that we'll need to convert the percent to a decimal. In mathematical terms, the formula will be,

[tex]\frac{part}{whole}=quotient*100[/tex]

40% will be the part and 68% will be the whole.

Step 1.

Convert 40 into a decimal by dividing it by 100.

40 ÷ 100 = 0.4

Step 2.

Multiply 0.4 by 68.

0.4 × 68 = 27.2

Hence, she had 27.2% correct.

Consider the number line.
+
+
-1
0
1
What is the value of x on the number line?
А
-1.5
B
-0.5
с
0.5
D
1.5
a
-1.5

Answers

-0.5 because right in the middle of -1 and 0 is -0.5

The linear function f(x) = 0 5x + 80 represents the average test score in your math class, where x is the number of the test taken. The linear function 9(x) represents the average test score in your science
class, where x is the number of the test taken.
x 0x)
1 81
283
3 85
Part A: Determine the test average for your math class after completing test 2.
Part B: Determine the test average for your science class after the completing test 2.
Part C: Which class had a higher average after completing test 4? Show work to support your answer

Answers

Answer:

more information

Step-by-step explanation:

PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!

Answers

53 and 17

Step-by-step explanation:

If you add 53 and 17, you get 70.

If you subtract 17 from 53, you get 36. Hope this helps!

ce este un numar rational?

Answers

Answer:

ratio

Step-by-step explanation:

ratio what that person said ^^^^! Byeee^

a tank holds 49 litres of oil. if 7 litres leaked what percentage of oul has leaked​

Answers

The percentage of oil that has leaked​ from the tank is 14.29%.

Given the following data:

Tank capacity = 49 litres.Oil leakage = 7 litres.

To determine the percentage of oil that has leaked​ from the tank:

How to calculate percentage.

Mathematically, the percentage for the amount of oil leakage in this tank is given by this formula:

[tex]Percentage = \frac{Oil\;leakage}{Tank\;capacity} \times 100\\\\[/tex]

Substituting the given parameters into the formula, we have;

[tex]Percentage = \frac{7}{49} \times 100\\\\Percentage = 0.1429 \times 100[/tex]

Percentage = 14.29%.

Read more on percentage here: https://brainly.com/question/24304697

Juan's car used 12 gallons of gasoline to travel 456 miles. How many miles do I travel for each gallon of gasoline?

Answers

Answer:

38 miles per gallon

Step-by-step explanation:

465 miles / 12 gallons

38 miles / gallon

15, 16, 21 determine wether the triangle is acute

Answers

Answer:

no they don't because you could not use those numbers

During the fall you charge $10 to go to a house and rake the leaves and an additional eight dollars for every hour that you rake the yard if you earned $42 how many hours did you spend raking the leaves

Answers

Answer:

4

Step-by-step explanation:

set up an equation:

let h be the number of hours you spent raking.

then, the cost would be 10 + 8 times the number of hours.

In equation form:

[tex]10 + 8h = 42[/tex]

solve:

[tex]10 + 8h = 42\\8h = 32\\h = 4[/tex]

So you worked for 4 hours

Which equation is another way to show
5/4?

A. 1/5x1/4=
B. 4x1/5=
C. 4 divided by 5=
D. 5 divided by 4=
E. 5+1/4=

Answers

Answer:

D

Step-by-step explanation:

5 divided by 4 is just 5/4 written out

I'm lost on this please help

Answers

Answer:

Y=1/4x+33/4

Step-by-step explanation:

Y=1/4x+b

9=1/4(3)+b

9=3/4+b

8.25=33/4=b

Y=1/4x+33/4

What is the answer
How do you solve it

Answers

Answer:

-50y+(-80)

Step-by-step explanation:

For this cylinder the radius = 6.8 inches and the height L = 14.2 inches. Which is the BEST estimate for the surface area?Use 3.14 what is this answer

Answers

Answer:

896.784

Step-by-step explanation:

Comment if you want the explanation

Two claimants place calls simultaneously to an insurer's claims call center. The times X and Y, in minutes, that elapse before the respective claimants get to speak with call center representatives are independently and identically distributed. The moment generating function of each random variable is

M(t)= (1/11.5t)^2 , t < 2/3

Required:
Calculate the standard deviation of X + Y.

Answers

The moment generating function of each random variable is;

M(t) = (1/(1 - 1.5t))^(2), t < 2/3

Answer:

SD[X + Y] = 3

Step-by-step explanation:

For ease of differentiation, let's rewrite the M(t) function as;

M(t) = (1 - (3/2)t)^(-2)

Let's find the first derivative of the function;

M'(t) = 3(1 - (3/2)t)^(-3)

To get E[X], we will put 0 for t to get;

E[X] = 3(1 - (3/2)0)^(-3)

E[X] = 3

Now,let's find the second derivative of M(t)

M"(t) = (27/2)(1 - (3/2)t)^(-4)

At,t = 0, we will get E[X²]

Thus;

E[X²] = 27/2

Now, Var[X] = E[X²] - (E[X])²

Var[X] = (27/2) - 3²

Var[X] = 9/2

We are told that the times X and Y are independently and identically distributed. Thus, the sum of their variances is equal to the variance of their sum. This is expressed as;

Var[X + Y] = 9/2 + 9/2

Var[X + Y] = 9

Now,we know that square root of variance is standard deviation. Thus;

SD[X + Y] = √9

SD[X + Y] = 3

Use the ray tool to graph f(x)=−|x+2|

First plot the endpoint of the ray, then plot any point on the ray.

Answers

Answer: Graphed points I used, (-2,0), (0,-2), and (-3,-1)

Step-by-step explanation:

The graph of given function is attached below.

Absolute value function:

The given function is,

                          [tex]f(x)=-|x+2|[/tex]

We have to draw the graph of above function.

When [tex]x=-2[/tex] ,  [tex]f(-2)=0[/tex]

When [tex]x=-4[/tex] , [tex]f(-4)=-|-4+2|=-2[/tex]

When [tex]x=0[/tex], [tex]f(0)=-2[/tex]

Thus, We have points [tex](-2,0),(-4,-2)[/tex] and [tex](0,-2)[/tex]

The graph of function attached below.

Learn more about the graph of function here:

https://brainly.com/question/24335034

help me out
........1​

Answers

Answer: -13

Step-by-step explanation:

2-(3^2)+4-3-7 = -13

Answer:

17

Step-by-step explanation:

2x²+4x-7

-6²+(-12-7)

36+(-19)

17

Pleaseeeee helppppppp

Answers

Answer:

TIK TOK

Step-by-step explanation:

ON THE CLOCK  

the answer should be 12,
the area of a triangle is 1/2bh
so (1/2)(3)(8)=12

|x+3 , if x = 2. Plz help I will pick brainlist

Answers

Answer:

1(2)+3=5

Step-by-step explanation:

What is the answer to this

Answers

Cos(theta)=a/h
Cos(theta)=12/13
Theta=cos^-1(12/13)
Theta=22.62 degrees

Hope it helps

What is the area of the top AND bottom faces?

Answers

Answer:

Top : 24cm²

Bottom : 24cm²

Step-by-step explanation:

Surface area : Base × Height

Top :

3 × 8 = 24

Bottom :

3 × 8 = 24

Help me please I give brainliest and be serious

Answers

Answer:

15, y = 1/2x + 3.75

Step-by-step explanation:

Am not 100% sure but for #15

cuz I graphed it & it looks alike

the parallelogram height is 1 and 1/2 times the base length and the base length is 6

Answers

are you asking to find the area

What method can be used to prove the triangles are congruent?


Options: AAS, ASA, SSS, SAS, HL or Not Possible​

Answers

Answer:

An method would be ASA

Step-by-step explanation:

CAN SOMEONE HELP ME PLZZZ

Answers

Answer:2440

Step-by-step explanation:

-4x - 4(6x-14) +8(6x-10) - (20x -18)

Answers

Answer:

I believe it is -6

Step-by-step explanation:

*NEED HELP QUICKLY*

my son is doing a math assignment and he needs this done within the hour. i tried to help with it but math isn’t my strong suit.

Answers

Answer: undefined

Step-by-step explanation:

I think im not sure tho

C(x)=4x; R(x) = 6X-.001x²
Marginal cost?

Answers

Answer:

the answer is to commit uninstall

Step-by-step explanation:

gg wp

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