Somebody please help me with this question, I couldn’t find any answers to it.

A = nr^2. find the value of A when n = 3.142 and r =5

Answers

Answer 1

Answer:

A = 78.55

Step-by-step explanation:

A = nr^2

substitute the n and r values

A = 3.142(5)^2

Use PEMDAS

Parenthesis Exponents Multiply Divide Add Subtract

so the first step is exponents

5^2 is 25

A = 3.142(25)

Multiply

A = 78.55

Make me brainliest plzz and thank you


Related Questions

store A Sells a set for $26 and offers a 15% discount

Answers

Answer:

Step-by-step explanation:

20% of $1200 is $240

(0.2∗1200)=$240

Now subtract that number from 1200

1200−240=$960

try this example

Answer:

$22.10

Step-by-step explanation:

First you would multiply 26 by .15, which represents 15%, or 15/100. After you multiply, you will get 3.9. 3.9 represents the discount of the price. Since it is a discount, you suntract 3.9 from 26, and you get 22.1.

The graph shows the printing rate of Printer A. Printer B can print at a rate of 25 pages per minute. How does the printing rate for Printer B compare to the printing rate for Printer A

Answers

Answer:

The printing rate for Printer B is 10 pages more than the rate of printer A because the rate of 25 pages per minute is 10 pages more than the rate 15 pages per minute for Block A

Step-by-step explanation:

From the graph of the printing rate of Printer A, we can see that;

At 1 minute, number of pages printed = 15

At 2 minutes, number of pages printed = 30 minutes

At 3 minutes, number of pages printed = 45

Thus printing rate for printer A is; 15/1 = 30/2 = 45/3 = 15 pages per minutes

Since printer B can print 25 pages per minute, we can conclude that;

The printing rate for Printer B is 10 pages more than the rate of printer A because the rate of 25 pages per minute is 10 pages more than the rate 15 pages per minute for Block A

In a random sample of 100 voters, 48 said they planned on voting for the Republican presidential candidate. On election day, 51% of voters actually voted for the Republican presidential candidate. (a) Identify the value of the sample proportion.

Answers

Answer: 0.48 .

Step-by-step explanation:

The sample proportion is a ratio of number of successes in a sample to the sample size.

Let p be the proportion of voters actually voted for the Republican presidential candidate.

Given:   In a random sample of 100 voters, 48 said they planned on voting for the Republican presidential candidate.

Sample proportion: [tex]\hat{p}=\dfrac{48}{100}=0.48[/tex]

Hence, the sample proportion is 0.48 .

Mr. Granados deposited $5,300 into an account. He made no additional deposits or withdrawals. Mr. Granados earned 6.5% annual simple interest on the money in the account. What was the balance in dollars and cents in Mr. Granados' account at the end of 6 years?

Answers

5,300. 6.5. 6 is how you get the answer

which of the following statements is true?

A: 1.7 less than 1 1/2

B: 3/4 less than pr equal to 7/8

C: -1 1/2 less than -1.5

D:0.01 greater than 0.q​

Answers

Answer:

the answer will be A 1.7 less than 1 1/2

What is the slope and the y-intercept of the following linear equation?

Answers

Answer:

wish i coul d help

Step-by-step explanation:

Throughout the 2016 Presidential election primaries, Millennials (those aged 20 to 36 years) consistently supported Senator Bernie Sanders over Secretary Hillary Clinton. According to the 2016 Gallup poll of 1,754 Millennials, 55% had a favorable opinion of Sanders than Hillary Clinton (38%). Calculate the 90% confidence interval for Bernie Sanders.

Answers

Answer:

the 90% confidence interval is

[tex]0.5305  <  p < 0.5695 [/tex]

Step-by-step explanation:

From the question we are told that

   The sample proportion is  [tex]\^ p = 0.55[/tex]

   The sample size is n = 1754

From the question we are told the confidence level is  90% , hence the level of significance is    

      [tex]\alpha = (100 - 90 ) \%[/tex]

=>   [tex]\alpha = 0.10[/tex]

Generally from the normal distribution table the critical value  of  [tex]\frac{\alpha }{2}[/tex] is  

   [tex]Z_{\frac{\alpha }{2} } =  1.645[/tex]

Generally the margin of error is mathematically represented as  

     [tex]E =  Z_{\frac{\alpha }{2} } * \sqrt{\frac{\^ p (1- \^ p)}{n} } [/tex]

=>  [tex]E =  1.645  * \sqrt{\frac{ 0.55 (1- 0.55)}{1754} } [/tex]

=>  [tex]E =  0.0195 [/tex]

Generally 90% confidence interval is mathematically represented as  

      [tex]\^ p -E <  p <  \^ p +E[/tex]

=>   [tex]0.55 -0.0195 <  p < 0.55 + 0.0195[/tex]

=>   [tex]0.5305  <  p < 0.5695 [/tex]

CAN SOMEONE PLS HELP ME I WILL MAKE BRAINLIEST PLSSS

Answers

Answer:

a) 300 miles

b) 2pm}

That is all I can help you :(

Step-by-step explanation:

8am + 6hrs =14hrs =2pm

What is the answer here

Answers

Answer is B. 6a/b^7

If correct make brainliest?

What is the common difference between successive terms in the sequence?
2, 8, 14, 20, 26, .
ΟΟΟΟ
-6
-4
4
6

Answers

The sequence you add 6 each time so I say 6

I WILL MARK BRAINLIST

Answers

Answer:

D

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

It translates 5 up and 3 left

Hannah invested $820 in an account paying an interest rate of 1.8% compounded continuously. Assuming no deposits or withdrawals are made, how much money, to the nearest hundred dollars, would be in the account after 16 years?

Answers

Answer:

$1,093.67 = $1,100 rounded to th next $100

Step-by-step explanation:

Final investment value

$1,093.67

Total interest earned

$273.67

Initial balance

$820.00

Total monthly deposits

$0.00

Effective Annual Rate (APY)

1.816%

The formula used in the compound interest calculator is A = P(1+r/n)^(nt)

A = the future value of the investment

P = the principal investment amount

r = the interest rate (decimal)

n = the number of times that interest is compounded per period

t = the number of periods the money is invested for

Answer:

1100

Step-by-step explanation:

A right triangle has side 9 and hypotenuse 15. Use the Pythagorean Theorem to find the length of the third side.
Provide your answer below:

Answers

Answer:

12

Step-by-step explanation:

Pythogorean Theorem:

a squared + b squared = c squared

9 squared or 81 + ? squared = 15 squared or 225

Inverse Pythagorean Theorem:

c squared - a squared = b squared

225 - 81 = 144

sqrt (144) = 12

12 = b

Hope this helps! Good luck!

Katie just opened a checking account at the bank. Within the first month, she deposited three checks for $21.68, $42.09, and $65.44. She withdrew $4.64 for new pencils, $23.11 for earbuds, and $9.78 for movies from her account in the same month.

Answers

Complete question is;

Katie just opened a checking account at the bank. Within the first month, she deposited three checks for $21.68, $42.09, and $65.44. She withdrew $4.64 for new pencils, $23.11 for earbuds, and $9.78 for movies from her account in the same month.

Write Katie’s withdrawals as negative rational numbers and her deposits as positive rational numbers.

Answer:

Deposits are; +21.68, +42.09, and +65.44.

Withdrawals are; -4.64, -23.11, and -9.78

Step-by-step explanation:

We are told that the deposits are;

$21.68, $42.09, and $65.44.

Now, she withdrew $4.64 for new pencils, $23.11 for earbuds, and $9.78 for movies from her account in the same month.

We are told to write Katie’s withdrawals as negative rational numbers and her deposits as positive rational numbers.

A rational number is a number that can be expressed as the ratio of two integers. In this question, by inspection, all the given values for deposits and withdrawals can be expressed as the ratio of 2 integers.

Thus;

Deposits are; +21.68, +42.09, and +65.44.

Withdrawals are; -4.64, -23.11, and -9.78

Is Oregon a swing or a safe state?

Answers

Answer:

Oregon is a safe state

Step-by-step explanation:

this election it is also democratic

Can someone factor f(x)= 2x^4 -12x^3 +6x +20x and please show steps thank you

Answers

Answer:

I dont think the way you wrote it was right.

Step-by-step explanation:

Answer:

f(x) = 2x(x - 5)(x -2)(x + 1)

Step-by-step explanation:

Given

f(x)= 2x^4 -12x^3 +6x^2 +20x

Factoring in steps

f(x)= 2x^4 -12x^3 +6x^2 +20x =2x(x^3 - 6x^2 + 3x + 10) =2x(x^3 - x^2 - 2x - 5x^2 + 5x + 10)2x(x - 5)( x^2 - x - 2) = 2x(x - 5)(x -2)(x + 1)

Jack spent $6.34 on haircut. $35.70 on groceries and $18.77 on a cake. How
much money has he left, if he had $88.76 to start with?

Answers

$88.76 - $6.34 - $35.70 -$18.77 = $27.95

f(x) = 3 (x-3)
D:
R:

Answers

i have d anqhsisgdigiis

The term "jet stream" is often used by weather forecasters to describe
A: The cloud-like condensation trails that are sometimes seen behind jet aircraft.
B: Warm pacific winds associated with volcanic activity in the western pacific which carry heat to the north pole
C: Solar winds that bring high energy particles to the upper atmosphere, providing heat which sets off convection cycles disturbing weather in the tropical latitudes
D: The west to east winds that circle the globe, often just below the poles in latitude and just beneath the stratosphere in elevation

Answers

Answer:

daddy chill what does the man say?

Step-by-step explanation:

???

D; it’s the big winds that circle around the globe

7 is ten times the value of _?

Answers

Answer:

0.7

Step-by-step explanation:

Answer:

0.7

Step-by-step explanation:

is you multiply 0.7 by ten you get 7

Which graph represents the function f(x)=4/x
?

Answers

Answer:

graph shown below

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Choose the function that shows the correct transformation of the quadratic function shifted elght units to the right and
one unit down.
f(x) = ( x - 3)^2+1
f(x) = ( x - 8)^2 - 1
f(x) = ( x + 8)^2+1
f(x) = ( x + 8)^2-1

Answers

Answer:

f(x)=(x-8)^2 -1

1 pound of blueberries cost $2.75 yes or no

Answers

Answer:

no

Step-by-step explanation:

cause I don't really know

Use: Ck
n!
k! (n-k)!
to solve the combination.
During a lunch seminar chocolate,
caramel, and strawberry toppings
were available. How many two-topping
sundaes are possible?

Answers

Answer:

3

Step-by-step explanation:

Chocolate-caramel

Carmel- strawberry

Chocolate-strawberry

That’s 3 ways.

How do you write 1 2/3 as a decimal.

Answers

Answer:

1.7

Step-by-step explanation:

Which interval for the graphed function has a local minimum of 0?

Answers

Answer: your answer would be   [2, 4]

Step-by-step explanation:

tell me if im wrong please

Step 2: Evaluating trends of data
Because you want to prepare and serve the healthiest food possible, you monitor the fat
and calorie content of items on your menu. Some of the menu items are included in the
graph below.
Fat & Calorie Content
1000
800
1600
Calories
400
200
0
0
6
10
12
2
14
16
8
Fat
a) Your business partner describes this as a high positive correlation. Is your partner
correct? Why or why not? (2 points)
b) Using the drawing tools, draw a trend line (line of best fit) on the graph above. (2
points)

Answers

Answer: im actually doing this rn

Answer:

I know im late but here is the answer can i still get breainliest?

Step-by-step explanation:

a) Your business partner describes this as a high positive correlation. Is your partner correct? Why or why not?

Yes, my partner is correct because as the fat increases the calories increase. And when the points are rising from the left to the right, this indicates a positive correlation.

b) Using the drawing tools, draw a trend line (line of best fit) on the graph above.

it's basically a line that goes up to the right like this /

c) Judge the closeness of your trend line to the data points. Do you notice a relationship between the data points?

This is a linear trend because it moves in a line going up at a predictable rate.

d) Is the trend line linear? If so, write a linear equation that represents the trend line. Show your work.

No, the trend line is not linear, because it squiggles at the end.

the length of a rectangle is 7m more than twice the width, and the area of the rectangle is 99m to the second power. find the dimensions of the rectangle.​

Answers

Answer:

The area of a rectangle is 99 m^2 , and the length of the rectangle is 7 m more than double the width

Step-by-step explanation:

need help with it asap you need to show your work

Answers

Answer:

the correct answer is 21

Step-by-step explanation:

5+3×3(2)-2

5+18-2

=21

Evaluate each expression by (1) using the Distributive Property and (2) evaluating inside the parentheses first.

a. 2(3.22−0.12)=

b. 12(12+23)=


Question 2
Is the method that makes the evaluation process easier the same for both expressions? Explain why one method is better to use than the other.

The method that makes the evaluation process easier when evaluating the two expressions
the same for both expressions.

For part (a),
makes for easier and fewer calculations. For part (b),
will eliminate the fractions.

Answers

Answer:

can u explain more

Step-by-step explanation:

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