Mathematics College

Help quick!!!!!!!!!!!!!!!!!

Answers

Answer 1

Answer:

P = 56.562

Step-by-step explanation:

Perimeter of a semicircle:

P = πr + 2r

Given:

r = 11

Work:

P = πr + 2r

P = 3.142(11) + 2(11)

P = 34.562 + 22

P = 56.562

Related Questions

Which statement is true about the solution to ?

The solution is x = –1 because .
The solution is x = 1 because .
The solution is x = 0 because .
There are no real number solutions to this equation.

Answers

Answer: correct

Step-by-step explanation: The solution is x = –1 because .

The solution is x = 1 because .

The solution is x = 0 because .

There are no real number solutions to this equation.

Answer: There are no real number solutions to this equation.

what is 16x <20 on a number line?

Answers

[tex]x < \frac{20}{16} = \frac{5}{4} = 1.25 \\ x < 1.25[/tex]

i hope it helps u :)

Answers

Answer:

1/20

Step-by-step explanation:

The reciprocal just means that you flip the numerator & denominator. Any whole number always has a denominator of 1, so you just flip it to 1/20. Hope this helps!

hello!

In order to find the reciprocal of a number, we should flop it over.

Kindly consider the formula for additional details:-

[tex]\sf{The~reciprocal~of~a~is~\displaystyle\frac{1}{a}}[/tex]

According to the formula, the reciprocal of 20 is:-

[tex]\sf{The~reciprocal~of~20~is~\frac{1}{20}}[/tex]

note:-

Hope everything is clear; if you need any explanation/clarification, kindly let me know, and I will comment and/or edit my answer :)

What’s the answer and work for this? Someone please telllllllll meeee!!!!

Answers

Answer: 25

Step-by-step explanation: The median is the average of the middle two numbers and if the median will be 17.5 then the sum of the middle numbers will be 35, and when we arrange the numbers in the least to greatest order we realize that 10 will be one of the middle two numbers when a number is added, and so the other number must be 25. Hope this helped!

If you draw a triangle with angles that measure 95 degrees and 40 degrees, what will be the measure of the third angle?

Answers

Answer: 45°

Step-by-step explanation: All the angles of a triangle have to equal 180.

95 + 40 + x = 180

135 + x = 180

180-135 = 45.

The measure of two angles would be 35 and 45

Summary information on the heights of 64 bass and 42 tenor singers, all men, in the New York Choral Society is given. The vocal range of bass voice part is lower in pitch than the alto voice part. Use 1% level of significance to determine whether the population mean height of bass singers is greater than the population mean height of tenor singers.

Answers

Answer:

Hello your question has some missing information below is the missing information

Sample mean and Sample standard deviation

Bass 70.99 and 2.52

Tenor 69.41 and 2.79

answer : We will reject H0

Step-by-step explanation:

Determine whether the population mean height of bass singers > population mean height of tenor singers

n1 = 64 , n2 = 42

x1 ( mean ) = 70.99

x2( mean ) = 69.41

S1 ( std 1 ) = 2.52

S2 ( std 2 ) = 2.79

We will perform a two tailed test hence we will state the null and alternate hypothesis

H0 : μ1 > μ2

H1 : μ1 < μ2

significance level = 0.01

next calculate the test statistic

t = 2.96

attached below is the remaining part of the detailed solution

What does x equal
3х – 4 = 8 + 2х

Answers

Answer: x = 12

Step-by-step explanation:

First, we have to add 4 on both sides of the equation to combine like terms:

3х – 4 (+4) = 8 (+4) + 2х

3x = 12 + 2x

Now we subtract 2x on both sides of the equation, which leaves x by itself:

3x (-2x) = 12 + 2x (-2x)

x = 12

Question 1
Which inequality is true when y = -2?
A-6y > 12
B -5y < -10
C-4y <-8
D 7y > -14

Answers

Your answer to your question might be D

A 2018 poll of 3603 randomly selected users of a social media site found that 1697 get most of their news about world events on the site. Research done in 2013 found that only 45% of all the site users reported getting their news about world events on this site. a. Does this sample give evidence that the proportion of site users who get their world news on this site has changed since 2013

Answers

Answer:

Reject H0; there is significant evidence that the proportion of site users who get their world news on this site has changed since 2013 and is significantly different from 45%

Step-by-step explanation:

Sample size, n = 3603

x = 1697

Phat = x/n = 1697/3603 = 0.4709 =47.09%

H0 : p = 0.45

H1 : p > 0.45

The test statistic :

(phat - p) / sqrt[(p(1 - p)) /n]

(0.4709 - 0.45) / sqrt[(0.45(0.55))/3603]

0.0209 / 0.00828810932

Test statistic = 2.5217

The Pvalue :

Using the Pvalue from Test statistic calculator ; α = 0.05 ;

Pvalue at 95% confidence = 0.005839

Pvalue < α ;

Hence, we reject the Null

Therefore, we conclude that the sample gives evidence that the proportion of site users who get their world news on this site has changed since 2013.

In the LEFT column: Solve for y: 5 = –7y + 8

Answers

9514 1404 393

Answer:

y = 3/7

Step-by-step explanation:

add 7y to both sides of the equation

7y +5 = 8

Subtract 5 from both sides of the equation

7y = 3

Divide both sides of the equation by 7

y = 3/7

On a coordinate plane, how are the locations of the points (1 , -5) and (-1 , 5) related

Answers

Answer:

They are a transformation

Step-by-step explanation:

Checked using desmos graphing

A SPINNER IS DIVIDED INTO EQUAL BLACK, WHITE, RED. YELLOW, AND GREEN
SECTIONS. IF I SPIN THE SPINNER 95 TIMES ABOUT HOW MANY TIMES WOULD IT LAND ON YELLOW

Answers

Answer:

We would expect to get yellow 19 times.

Step-by-step explanation:

The probability of getting yellow is 1/5 (It is one out of five options)

To find how many times it is probable to get yellow, multiply this probability by the number of trys: (1/5)(95)=19

Question 2(3 - 3x) = -18

Answers

Answer:

x=4

Step-by-step explanation:

1. Rearrange terms

[tex]2(-3x+3)=-18[/tex]

2. Distribute

[tex]-6x+6=-18[/tex]

3. Subtract 6 from both sides of the equation

[tex]-6x+6-6=-18-6[/tex]

4. Simplify by subtracting the numbers

[tex]-6x + 6-6=-18-6[/tex]

[tex]-6x=-18-6[/tex]

[tex]-6x=-24[/tex]

5. Divide both sides of the equation by the same factor

[tex]\frac{-6x}{-6} = \frac{-24}{-6}[/tex]

6. Simplify

a) Simplify the fraction

[tex]\frac{-6x}{-6} = \frac{-24}{-6}[/tex]

[tex]x = \frac{-24}{-6}[/tex]

b) Divide the numbers

[tex]x=+4[/tex]

7. Remove the postive sign.

[tex]x=4[/tex]

X=4 hope this helps you

Select all statements that are true.
An acute triangle can be equilateral
An obtuse triangle can have more than one obtuse angle.
An equilateral triangle is always equiangular.
A right triangle can be scalene.
An acute triangle can be sosceles
A scalene triangle can be equilateral

Answers

The true statements are as follows

An acute triangle can be equilateral .An equilateral triangle is always equiangular. A right triangle can be scalene. An acute triangle can be isosceles.

The following statements considered to be false:

An obtuse triangle can have more than one obtuse angle.A scalene triangle can be equilateral.

Therefore, the above statements are considered true.

Learn more: brainly.com/question/17429689

geometry multiple choice
(will mark brainliest)

Answers

I believe it’s 2, 3 and 5 not 100% tho.

Which statement is true?
4
O A. As the value of a positive number
increases, the absolute value of
the number decreases.
O B. As the value of a positive number
decreases, the absolute value of
the number increases.
O C. As the value of a negative number
increases, the absolute value of
the number decreases.
5
O D. As the value of a negative number
decreases, the absolute value of
the number decreases.

Answers

The answer is b it depends on the number

option D is true statement. that is the absolute value of the negative number will decreases with decreases in negative number.

What is Absolute value of a number?

Absolute value describes the distance from zero that a number is on the number line, without considering its direction that is the absolute value of a number is never negative.

In other words Absolute value is the modulus of any number.

A ) False : the absolute value of the positive number will increase with increase in positive number.

B ) False : the absolute value of the positive number will decreases with decreases in positive number.

C) False : the absolute value of the negative number will increase with increase in negative number.

D) TRUE: the absolute value of the negative number will decreases with decreases in negative number.

Therefore, option D is true.

Answers

Answer:

see below

Step-by-step explanation:

1. 4 + 4w

Take out a 4 from each term.4(1 + w)

2. 18w + 9

Take out a 9 from each term.9(2w + 1)

3. 18 + 6x

Take out a 6 from each term.6(3 + x)

4. 21x + 42

Take out a 21 from each term.21(x + 2)

5. 25x + 45

Take out a 5 from each term.5(5x + 9)

Hope this helps!

PLEASE HELP ILL GIVE BRAINLIEST!!!!

Which line plot displays a data set with an outlier?

(btw don't mind the one that's selected I accidentally pressed that)

Answers

The last one is correct.

Answer:

the graph selected

Step-by-step explanation:

If we look to the third graph we can see that all data are concetrated on the left part of the graph, but there is one that is on the right part, so it is an outlier

Answer 3. Pls pls ASAP pls pls

Answers

Answer:

a) no

b) yes

c) yes

d) no

Step-by-step explanation:

cesium-137 has a half-life of approximately 30 years. how much of a 40g sample would be left after 90 years?

Answers

Answer:

Step-by-step explanation:

the first half life would be 20 the next, 10. and lastly 5

A small box measures 7 in. by 10 in. by
3/4 in. high. Find the volume of the box.

Answers

Answer:

Volume = 52.5

Step-by-step explanation:

volume of a rectangular 3d shape can be calculated by length*width*height. In this case:

7*10*0.75 = 52.5

Il means
* is equal to
* is parallel to
*lines
* therefore
* none of these

Answers

I just got finished with this question I’m pretty sure it is “ is equal to”

if a sphere has radius of 13 centimeters what is the volume

Answers

The answer is 8788pi/3 Hope this helps! Mark brainly please!

A spinner has six equal-sized sections numbered 1, 1, 2, 2, 3, and 4. What is the probability of spinning a 3?

Answers

Answer:

1/6 or 0.166666...

Step-by-step explanation:

1 out of 6, so 1/6

Daphne has a preloaded games card that she is using to play games at the arcade as shown in the table.

How much did Daphne start with on her card?

by what amount does her card value change per game?

write an equation to represent the situation.

Answers

Answer:

she starts with $25

every three games she spends $1.50 (.50 per game)

Step-by-step explanation:

i mean i cant really explain it, its kinda self explanatory

A machine is shut down for repairs if a random sample of 100 items selected from the daily output of the machine reveals at least 15% defectives. (Assume that the daily output is a large number of items.) Suppose that a random sample of 20 items is selected from the machine. If the machine produces 5% defectives, find the probability that the sample will contain at least three defectives, by using the following methods.

a. The normal approximation to the binomial
b. The exact binomial tables

Answers

my brain can't process this lol

Can someone please answer these two questions

Answers

Answer:

Step-by-step explanation:

Paulo has $145 in his saving account he earns $36 a week mowing lawns. How many weeks will he have to work to have over $433

Match the inequality Statement with an Equation.

Group of answer choices {select all that apply}

433 + 36 (x) > 145

36 (x) - 145 < 433

145 + 36x > 433

-145 + 36x < 433

Answers

Answer:

145 + 36x > 433

Step-by-step explanation:

36x + 145 > 433

Hurry only 5 minutes to answer!!!!!!!!!!!!!1111
Order the specified numbers from smallest to biggest.

Answers

Answer:

-12, -3/4, -0.4, 0.4, 3/4, 8

Step-by-step explanation:

GIVING AWAY BRAINLIEST TO FIRST AND CORRECT ANSWER!!! Rewrite the following function in slope intercept form.

an=3+(n-1)(-6/7)

OPEN ENDED WHOEVER ANSWERS BEST GETS BRAINLIEST

Answers

Answer:

PP power

Step-by-step explanation:

Answer:

Step-by-step explanation:

Slope = -6/7

(1,3) and (2,15/7) are points on the line.

y-3 = -(6/7)(x-1)

y = -(6/7)x + 21/7

Other Questions

Complete the square to findthe vertex of this parabola.x2 - 8x - y - 4 = 0([?], [ ] Gallium (, ) is a metalloid obtained from its salts during the smelting of ores of other elements, like Zinc. has broad applicability in the electronics industry. It is also used as a safe replacement for mercury in thermometers as it melts at and has a heat of fusion of . What is the entropy change of of gallium in as it melts when placed on a surface at Write the standard form of an equation with p=3sqrt2, theta=135.a. x-y+sqrt2=0b. x-y+6=0c. x-y+3sqrt2=0d. x+y+sqrt2=0 convert 320% to an equivalent decimal. Why are the triangles congruent Write a short note about how the civilization helped the people in earlier days. will give brainiest + 40 points Which graph represents the function p(x) = |x 1|? please help it would be reallyyyy nice tysmmwmsmssmm write a query to find all customers with a balance of more than $99 but less than $900. sort the results by customer balance (highest first) a small remote-control car with a mass of 1.61 kg moves at a constant speed of v = 12.0 m/s in a vertical circle inside a hollow metal cylinder that has a radius of 5.00 m Which of the following is the equation of the circle shown below? 10x+9y=-1710x-2y=16 There are 45 students in a speech contest. Yesterday, 1/3 of them gave their speeches. Today, 2/5 of the remaining students gave their speeches. How many students still haven't given their speeches? The spread of Islam throughout the African continent is an example of In order to protect Fort Union, Canby ordered his men to ____________________ a. destroy everything if necessary, including other forts. b. protect and care for the sick and wounded. c. leave New Mexico and return to Confederate homes. d. strip all public property of value and leave people without food, valuables, and troops. Please select the best answer from the choices provided A B C D Whats the volume of the prism which of the following is true regarding a worksheet prepared at year-end Why was Lieutenant General von Steuben hired Think about a wooden chair and a balloon. What do these two objects always have in common?Both are made of atoms.Both have the same physical properties.Both are made of the same kind of atom.Both are made of the same number of atoms. A set of final examination grades in an introductory statistics course is normally distributed, with a mean of 76 and a standard deviation of 7 Complete parts (x) though CED a. What is the probability that a student sooned below 86 on this exam? The probability that a student scored below 86 is (Round to four decimal places as needed) b. What is the probability that a student scored between 0 and 94? The probability that a student scored between 60 and 94 (Round to four decimal places as needed.) c. The probability is 25% that a student taking the test scones higher than what grade? The probability is 25% that a student taking the test scores higher than (Round to the nearest integer as needed) d. If the professor grades on a curve (for example, the professor could give A's to the top 10% of the class, regardless of the score) is a student better off with a grade of 50 on the exam or a grade of 66 on a different exam where the ne 65 and the standard deviation is 37 Show your answer statistically and explain. and the 2 value for the grade of 68 s A student is___ with a grade of 90 on this exam because the Z value for the grade of 90 is___(Round to two decimal places as needed)