Can someone help me with this

Can Someone Help Me With This

Answers

Answer 1

9514 1404 393

Answer:

  314 square inches

Step-by-step explanation:

The radius is half the diameter. If the diameter is 20 inches, the radius is 20/2 = 10 inches. The area is given by the formula ...

  A = πr²

Filling in the given values, we get ...

  A = 3.14×(10 in)² = 314 in² . . . . area of the circle


Related Questions

Which system of equations has no solution?

Answers

Answer:

Step-by-step explanation:

Step-by-step explanation:

I think it's C.not sure if it's correct

Which is the lower rate?
44 people in 4 theaters or 100 people in 10 theaters

Answers

Answer:

100 in 10 theaters. 100÷10=10 44÷4=11

Consider polynomials P and Q.
P= 8y4 + 6y3 +8y
Q= (5y2 - 4y) (3y2 + 7)
Which operation results in an expression equivalent to 23y4 - 6y3 + 35y2 - 20y?
A. PQ
B. P +Q
C. Q - P
D. P - Q

Answers

B. P+Q
This the answer on edmentum

the lengths of two sides of a triangle are 2x-5 and x+3. If the perimeter of the triangle is 4x-1, what is the length of the third side in terms of x?

Answers

Answer:

[tex]x-9[/tex]

Step-by-step explanation:

[tex]side_1=2x+5\\side_2=x+3\\side_3=\phi\\perimeter=\displaystyle\sum_{i=1}^3side_i=(2x+5)+(x+3)+\phi=4x-1\\\phi=4x-1-x-3-5-2x=x-9[/tex]

The length of the third side in terms of x is x+1.

What is the perimeter of the triangle?

The perimeter of a triangle is the sum of all its three sides.

We can work out the perimeter using the following formula:

The perimeter of a triangle is = sum of all three sides.

The length of the third side in terms of x is given by;

[tex]\rm Perimeter \ of \ triangle = Side \ a + Side \ b + Side \ c[/tex]

Substitute all the values in the formula

[tex]\rm Perimeter \ of \ triangle = Side \ a + Side \ b + Side \ c\\\\4x-1=2x-5+x+3+Side \ c\\\\4x-1=3x-2+Side \ c\\\\Side \ c=4x-3x-1+2\\\\Side \ c=x+1[/tex]

Hence, the length of the third side in terms of x is x+1.

Learn more about triangles here;

https://brainly.com/question/22850643

#SPJ2

Write the equation in slope intercept form given
the
point and the slope
m=-4 & (-1, 3)

Answers

The equation of the line is:
y = -4x -1


Work:
y = mx + b
y = -4x + b
3 = -4(-1) + b
3 = 4 + b
-1 = b

Answer:

Step-by-step explanation:

if a straight line with a slop [tex]m[/tex] pass through point [tex]P(x_o, y_o)[/tex] it's equation is:

[tex]y-y_o=m(x-x_o)\\\\y-(3)=-4(x-(-1))[/tex]

[tex]y=-4x-4+3\\\\y=-4x-1[/tex]

A planet rotates through one complete revolution every 26 hours. Since the axis of rotation is perpendicular to the equator, you can think of a person standing on the equator as standing on the edge of a disc that is rotating through one complete revolution every 26 hours. Find the angular velocity of a person standing on the equator.

Answers

Answer:

23.5 degree stands tap of the floor

A store offers different brands of a product. It decides to eliminate the brand
that is most likely to be returned. The table shows the number of items of
each brand that were returned over the past year and the total sold

Answers

Answer:

Brand A

Step-by-step explanation:

Because it has the most returns, therefore, it is the brand that is most likely to be returned.

Answer: Brand B

Step-by-step explanation:

use ratios for each brand to find the probability of each being returned

how to write the fraction 7/100 as a decimal

Answers

Answer:

0.07

Step-by-step explanation:

It's 7/100. There are two zeros so you move the decimal place to the left two times. Or you can just put the seven in the hundreths place.

Write an equivalent expression for 3x + 21

Answers

3(x + 7)
hope this helps

A state has a lottery game where a person picks one of the 1000 three-digit numbers between 000 and 999. The lottery selects a three-digit number at random. With a bet of $1, a person wins $700 if their number is selected and nothing ($0) otherwise. The expected value of the probability distribution for the amount of money you will win is 0.70. What is the correct interpretation of the expected value

Answers

Answer:

A player can expect to win an average of 0.70 per lottery after playing the lottery sufficiently many times.

Step-by-step explanation:

The expected value for the amount of money to be won is 0.70 ;

The expected value of expected mean simply means the long run average because the expected mean refers to the average value of a random variable which is which is obtained over a large number of trials or experiment. In the case of lottery game, expected will thus be interpreted to mean the average winning (or loss) expected which a player earns or incurs after playing the lottery many times. It differs from the mean or average value earned after playing just a game or two as it refers to a long run average.

Question 20 of 25
The houses on a city block were thought to be valued at $172,000, $164,000,
$142,000, $159,000, $191,000, $124,000, and $146,000, respectively. But a
public assessor has determined that the value of each house is actually
$20,000 higher than previously thought. According to the public assessor,
what is the median value of the houses?
A. $166,000
B. $146,000
C. $179,000
D. $159,000
SU

Answers

Answer:

Median = $179,000

Step-by-step explanation:

Given prices of the houses :

$172,000 , $164,000 , $142,000 , $159,000 , $191,000 , $124,000 , $146,000

Arrange the data in ascending order :

$124,000 , $142,000 , $146,000 , $159,000, $164,000 , $172,000, $191,000

Prices according to the public assessor :

$144,000 , $162,000 , $166,000 , $179,000 , $184,000, $192,000, $211,000

Median is the middle value in the data : $179,000

Can someone please help me?

Answers

Answer:

A

Step-by-step explanation:

it takes 45 hours to plant 100 trees, so his rate is 100/45 trees per hour.

and it takes rose 40 hrs to plant the 100 trees, so her rate is 100/40 trees per hour

So add those together to get (100/45+100/40)

and then multiply them by P(which is in hours) to equal 100

(100/45+100/40)p=100

then divide by 100 both sides to get

p/45+p/40=1

help !!!!!!!!!!!!!!!!!!!!

Answers

Answer:

I think it's a square or maybe a rhombus?

Step-by-step explanation:

please help me do this i need it​

Answers

Answer:

(x+1)(3x+2) is the answer

Answer:

Step-by-step explanation:

3x^2+5x+2

3x^2+(3+2)x+2

3x^2+3x+2x+2

3x(x+1)+2(x+1)

(3x+2)(x+1)

HELP QUICK!!!! PLEASE!

Answers

Answer:

Linear function

[tex]y = \frac{x}{2} - 5[/tex]

Step-by-step explanation:

[tex]y = \frac{x}{2} - 5[/tex]Linear function

A linear equation is an equation of a straight line, which means that the degree of a linear equation must be 0 or 1 for each of its variables. In this case, the degree of variable y is 1 and the degree of variable x is 1.

[tex]y = \frac{2}{x} + 3[/tex]Not linear function

A linear equation is an equation of a straight line, which means that the degree of a linear equation must be 0 or 1 for each of its variables. In this case, the degree of variable y is 1

, the degrees of the variables in the equation violate the linear equation definition, which means that the equation is not a linear equation.

[tex]y = {2}^{x} - 1[/tex]Not linear function

A linear equation is an equation of a straight line, which means that the degree of a linear equation must be 0 or 1 for each of its variables. In this case, the degrees of the variables in the equation violate the linear equation definition, which means that the equation is not a linear equation.

[tex]y = {x}^{2} + 7[/tex]Not linear function

A linear equation is an equation of a straight line, which means that the degree of a linear equation must be 0 or 1 for each of its variables. In this case, the degree of variable y is 1 and the degree of variable x is 2.

Hope it is helpful...

Which of the following shows the correct order?
5497,0.75,
0{}=c075 <
° 0,75–1.2
(23<3<0,75

Answers

Answer:

The last one, (1/2)^2 < 2/3 < 0.75

Step-by-step explanation:

So lets try to put each number in the same form, and see what their values are.

Lets start with (1/2)^2

This is squaring the 1 and 2 in 1/2. 1^2 is 1. 2^2 is 4. So its now:

1/4

Lets look at the others:

2/3

Lets just give it a common denominator. To do this, lets find the lowest number that both 3(from 2/3) and 4(from 1/4) go into. This is also known as the LCM.

This will be 12.

Since 3(from 2/3) goes into 12 4 times, we multipy both numerator and denominator of 2/3 by 4:

4*2=8, 3*4=12:

8/12

Since 4(from 1/4) goes into 12 3 times, we multiply both the numerator and denominator by 3:

1*3=3, 4*3=12:

3/12

So lets just go over what we know so far:

(1/2)^2 = 3/12

2/3 = 8/12

Now lets find our last value:

0.75

When converted into fraction form, we will get:

3/4

We already have a LCM, which is 12, that goes into this.

The denominator goes into 12 3 times, so again, we multiply numerator and denominator in this:

3*3=9, 4*3=12:

9/12

So:

(1/2)^2 = 3/12, 2/3 = 8/12, and 0.75 = 9/12

3/12 is smaller than 8/12, and 8/12 is smaller than 9/12. This can be written as:

3/12 < 8/12 < 9/12

And this basically means that:

(1/2)^2 < 2/3 < 0.75

This is the last answer in your answer list.

Hope this helps!

24. Ninety-four percent of NCSU transfers feel that their college adequately prepared them to handle upper-division coursework at their transfer university. We randomly survey 14 NCSU transfers. We are interested in the number that feel that their college adequately prepared them to handle upper division coursework at their transfer university. Find the probability that more than half felt that they were prepa

Answers

Answer:

The answer is "[tex]0.99999340657 \sim 1[/tex]".

Step-by-step explanation:

[tex]Sucess \ probability \ (p) = 94\% \ or\ 0.94\\\\Sample\ numbers\ n = 14\\[/tex]  

Using formula:

[tex]P(X=r)= ^n C_r \times p^r \times (1-p)^{n-r}[/tex]

 Let

[tex]\to r=8,9,10,11,12,13 \ or\ 14\\\\[/tex]

Substituting the value for all r:

 [tex]P(X=8)= 0.00008540547\\\\P(X=9)= 0.00089201264\\\\P(X=10)= 0.00698743233\\\\P(X=11)= 0.03980719025\\\\P(X=12)= 0.15591149513\\\\P(X=13)= 0.37578668058\\\\P(X=14)= 0.42052319017\\[/tex]

Therefore,

[tex]P(X>7)= P(X=8)+P(X=9)+....P(X=14)\\\\= 0.99999340657 \sim 1.[/tex]

Một công ty có đại lý bán sản phẩm trên toàn
quốc, để tìm hiểu tình hình tiêu thụ trong một
tuần lễ sau một đợt quảng cáo, ta có số liệu sau:
2,7
2,9
3,1
3,2
3,4
3,7
Doanh 2,7
số (tr)
Sổ đại lý
8
15
20
30
15
12

Answers

Answer:

Pooooppooooooooppooooooooppoopooooooooopp

Step-by-step explanation:

BRAINIEST AND 10 POINTS

Answers

Answer:

-0.7

Step-by-step explanation:

just solve it.....

Can someone help me please

Answers

Given:

The figure of a right angle triangle with legs a and 7, and hypotenuse c.

The measure of angle opposite to leg 7 is 30^\circ.

To find:

All the missing measures for the triangle.

Solution:

According to the angle sum property, the sum of all interior angles of a triangle is 180 degrees. So,

[tex]30^\circ+90^\circ+\text{Missing angle}=180^\circ[/tex]

[tex]120^\circ+\text{Missing angle}=180^\circ[/tex]

[tex]\text{Missing angle}=180^\circ-120^\circ[/tex]

[tex]\text{Missing angle}=60^\circ[/tex]

In a right angle triangle ,

[tex]\sin\theta=\dfrac{Perpendicular}{Hypotenuse}[/tex]

[tex]\sin (30^\circ)=\dfrac{7}{c}[/tex]

[tex]\dfrac{1}{2}=\dfrac{7}{c}[/tex]

[tex]c=7\times 2[/tex]

[tex]c=14[/tex]

In a right angle triangle,

[tex]\tan \theta =\dfrac{Perpendicular}{Base}[/tex]

[tex]\tan (30^\circ)=\dfrac{7}{a}[/tex]

[tex]\dfrac{1}{\sqrt{3}}=\dfrac{7}{a}[/tex]

[tex]a=7\times \sqrt{3}[/tex]

[tex]a=7\sqrt{3}[/tex]

Therefore, the measure of the missing angle is 60 degrees. Side "a" has a length of 14 units and side "c" has a length of [tex]7\sqrt{3}[/tex] units.

Suppose you are depositing an amount today in an account that earns 5% interest, compounded annually. If your goal is to have $5000 in the account at the end of six years, how much must you deposit in the account today?

Answers

Answer:

If you walk into a bank and open up a savings account you will earn interest ... include the amount of money deposited called the principal, the annual interest rate ...

Answer:

3731.08

Step-by-step explanation:

let x= the present value (or principle)

[tex]5000=x(1.05)^6\\\frac{5000}{1.05^6}=x\\x=3731.076983[/tex]

Find the area of a circular pool whose radius is 2 meter.​

Answers

Answer:

3.1416 square meters

Step-by-step explanation:

brainliest me pls

I will mark the brainliest 500 points

Answers

Answer:

50.3

Step-by-step explanation:

Answer:

50.3

Step-by-step explanation:

I know this because im smaart

12. *
12. The Earth is estimated to be 4,540,000,000
years old. What is the Earth's age in scientific
notation?
a) 4.54 x 10°
b) 4.54 x 10-14
c) 4.54 x 1011
d) 4.54 x 1010
A
С
D
Please help

Answers

Answer:

4.54 x 1010

Hope this helps!

Frank's gas tank is 1/5 full. After he buys 13 gallons of gas, it is 7/10 full. How many gallons can Frank's tank hold?

Answers

Answer:

26 gallons

Step-by-step explanation:

7/10 - 1/5 = 7/10 - 2/10 = 5/10 = 1/2

1/2x = 13

x = 26

Which of the following best describes the relationship between (x - 2) and the
polynomial 2x3 + x2-3?

Answers

Answer:

If (x - 2) is a factor of 2x³ + x² - 3 then for the value of x = 2 the polynomial is equal zero.

Substitute:

2 · 2³ + 2² - 3 = 2 · 8 + 4 - 3 = 16 + 4 - 3 = 17 ≠ 0

Answer: B) (x - 2) is not a factor.

Kelly owns a donut shop she wants to determine if she should add iced coffee to her menu. She gives a survey to the first 10 morning customers that come into her shop for the week

Answers

25 that’s it bye ………..hello

PLZZZ HELP ✨✨✨ ILL MARK BRAINIEST TYSMMM

Answers

Answer:

3

Step-by-step explanation:

She walked 4 days and 3/4 mile per day

To find the total distance, multiply the days by the number of miles per day

4 * 3/4 = 3 miles

Answer:

c 3

Step-by-step explanation:

3/4×4/1=3 u welcomeeeeeee

​41% of U.S. adults have very little confidence in newspapers. You randomly select 10 U.S. adults. Find the probability that the number of U.S. adults who have very little confidence in newspapers is ​ (a) exactly​ five, (b) at least​ six, and​ (c) less than four.

Answers

Answer:

a) 0.2087 = 20.82% probability that the number of U.S. adults who have very little confidence in newspapers is exactly​ five.

b) 0.1834 = 18.34% probability that the number of U.S. adults who have very little confidence in newspapers is at least​ six.

c) 0.3575 = 35.75% probability that the number of U.S. adults who have very little confidence in newspapers is less than four.

Step-by-step explanation:

For each adult, there are only two possible outcomes. Either they have very little confidence in newspapers, or they do not. The answers of each adult are independent, which means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

And p is the probability of X happening.

​41% of U.S. adults have very little confidence in newspapers.

This means that [tex]p = 0.41[/tex]

You randomly select 10 U.S. adults.

This means that [tex]n = 10[/tex]

(a) exactly​ five

This is [tex]P(X = 5)[/tex]. So

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 5) = C_{10,5}.(0.41)^{5}.(0.59)^{5} = 0.2087[/tex]

0.2087 = 20.82% probability that the number of U.S. adults who have very little confidence in newspapers is exactly​ five.

(b) at least​ six

This is:

[tex]P(X \geq 6) = P(X = 6) + P(X = 7) + P(X = 8) + P(X = 9) + P(X = 10)[/tex]

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 6) = C_{10,6}.(0.41)^{6}.(0.59)^{4} = 0.1209[/tex]

[tex]P(X = 7) = C_{10,7}.(0.41)^{7}.(0.59)^{3} = 0.0480[/tex]

[tex]P(X = 8) = C_{10,8}.(0.41)^{8}.(0.59)^{2} = 0.0125[/tex]

[tex]P(X = 9) = C_{10,9}.(0.41)^{9}.(0.59)^{1} = 0.0019[/tex]

[tex]P(X = 10) = C_{10,10}.(0.41)^{10}.(0.59)^{0} = 0.0001[/tex]

Then

[tex]P(X \geq 6) = P(X = 6) + P(X = 7) + P(X = 8) + P(X = 9) + P(X = 10) = 0.1209 + 0.0480 + 0.0125 + 0.0019 + 0.0001 = 0.1834[/tex]

0.1834 = 18.34% probability that the number of U.S. adults who have very little confidence in newspapers is at least​ six.

(c) less than four.

This is:

[tex]P(X < 4) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3)[/tex]

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 0) = C_{10,0}.(0.41)^{0}.(0.59)^{10} = 0.0051[/tex]

[tex]P(X = 1) = C_{10,1}.(0.41)^{1}.(0.59)^{9} = 0.0355[/tex]

[tex]P(X = 2) = C_{10,2}.(0.41)^{2}.(0.59)^{8} = 0.1111[/tex]

[tex]P(X = 3) = C_{10,3}.(0.41)^{3}.(0.59)^{7} = 0.2058[/tex]

So

[tex]P(X < 4) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) = 0.0051 + 0.0355 + 0.1111 + 0.2058 = 0.3575[/tex]

0.3575 = 35.75% probability that the number of U.S. adults who have very little confidence in newspapers is less than four.

Arnold bought 5 1/2 yds of lumber and uses 3 ft 8 inches to build a bird house. How many
inches of lumber is left.

A) 1.7 inches
B) 154 inches
C) 162 inches

Answers

Answer:

A) 1.7 inches of lumber is left.

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