Which of the following is a factor of 21?​

Answers

Answer 1

Answer:

The factors of 21 are 1, 3, 7 and 21. A factor is a number that can divide evenly into a given number. Because 21 can be divided by numbers other than itself and 1, it is called a composite number. Every number has 1 and itself as a factor. Numbers that have no other factors are called prime numbers.

Step-by-step explanation:


Related Questions

need help with this !!!

Answers

Answer:

(5,20)

Step-by-step explanation:

solve for the first variable in one of the equations
x = 5
y = 20

If 3x – 2 (2 + 1) = 4, then 5x =?

Answers

Answer:

50/3

Step-by-step explanation:

For x

3x-2(2+1)=4

3x-2(3)=4

3x-6=4

3x=4+6

3x=10

x=10/3

 as we have to find 5x=?

    5(10/3)

50/3

can someone please help me asap ill give extra brainly points!!!

Answers

95.20 is the answer

Answer:

94.20 yds

Step-by-step explanation:

C = 2 pi r

     2 pi (15) = 94.20 yds

Tell if the Ratio is Part-to-part or part-to-whole

4 apples to 3 oranges

Answers

Answer: Part-to-part

Step-by-step explanation:

This is a part-to-part, because they show part of apples, and part of oranges. This ratio when set up is 4:3. If the ratio was part-to-whole, then the apples would be compared to the total amount of oranges and apples. The ratio for part-to-whole would be 4:7.

Hope this helps!


The interior angle of a regular polygon is 156º. Find the number of sides of the polygon.​

Answers

Answer:

15

Step-by-step explanation:

n = 15 sides. Therefore ,The polygon with each interior angle 156° has 15 sides.

A spinner has 20 equal-sized sections. Two of the sections are blue. a. What is the probability that the spinner will land on blue? b. Use words to describe the probability.

Answers

Answer:

a. 2/20 or 10%

b. Theoretically 2 out of every 20 times the spinner is spun, it will be blue.

Step-by-step explanation:

Dishwasher detergent is sold in individual packs is sold in 20, 60 and 90 pack containers which container do you think has the lowest unit rate of dollars per pack and why

Answers

Answer:

I think 90

Step-by-step explanation:

Would help if you provided more information

I believe 90, not sure though

PLEASE ANSWER WILL GIVE BRAINLIEST

50 POINTS

approximate the solutions to this system.

y = 3x2 + x − 6

y = x − 4

Round your answers to the nearest hundredth.

Answers

Answer:

Its actually y=-4.82 but ok

Step-by-step explanation:

what's the area of the circle

Answers

Answer:

3.14

Step-by-step explanation:

Help me pleaseeeeeeeeeeeeeee

Answers

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Answer:

Exponential growth

Step-by-step explanation:

Sherry and Karl both started their hike with a small bottle filled with water. Tia started her hike with a larger that was 1/2 full. At the end of the hike, Sherry and Tia’s bottles were each half filled with water. Karl’s bottle was filled 1/3 filled with water. Who has the most water left? Construct a math argument to support your answer.

Answers

Answer:

The person with the most water left is;

Tia

Step-by-step explanation:

The parameters given in the question are;

The volume of water Sherry and Karl both started their hike with = 1 small bottle each

The volume of water Tia started her hike with = 1/2 of a larger bottle of water

The volume of water Sherry had at the end of the hike = 1/2 of the small bottle of water

The volume of water Tia had at the end of the hike = 1/2 of the large bottle of water

The volume of water Karl had at the end of the hike = 1/3 of the small bottle of water

Let 'x' and 'y' represent the sizes of the bottles of water with Sherry and Karl  respectively and let 'Z' represent the size of the bottle of water Tia started the hike with, we have;

The volume water with Tia at the end of the hike = 1/2·x

The volume water with Karl at the end of the hike = 1/2·y

The volume water with Tia at the end of the hike = 1/2·Z

Given;

Z > x

Z > y

∴ 1/2·Z > 1/2·x

1/2·Z > 1/3·y

Therefore, Tia with half of the larger bottle of water at the end of the hike, 1/2·Z has the most water left.

What is the equation of the given line?

Answers

Answer:

y=0x+5

Step-by-step explanation:

Answer:

2,2gggffgigzrfgcf gg cyg

We need to solve for x and y, help please
3x + 6y = 18

Answers

Answer:

the answer is 2

Step-by-step explanation:

3(2)+6(2)=

6+12=18

The answer is 2, it’s 2 because 3x + 6y is just 6+12 which equals 18.

explain how your know that 88is a solution to the equation 1/8 R = 11 complete the sentences
The word solution means to
88 is a solution to 1/8 R = 11 because

Answers

Answer:

In this equation R would equal 88 because it satisfies the equation.

Step-by-step explanation:

You must solve for R by isolating the variable(which is R). To move the 1/8, multiply both sides by 8. You would do this because 8 is the reciprocal of 1/8. With R on it's own, to keep both sides equal multiply 11*8. That equals 88, which satisfies the equation, which is why 88 is the solution.

Hope this helps :)

What is a prime number easy definition?

Answers

Prime numbers are numbers that have only 2 factors: 1 and themselves.

GIVING BRAINLIEST AND THE REST OF MY POINTS! PLS HELP :((

Answers

1. Rhombus
2 trapezoid
3 rhombus
4 square
5 rectangle

Sine is positive in which of the following quadrants?
A. I and III
B. I and IV
C. T and II
D. II and III

Answers

Answer:

C. I and II

Step-by-step explanation:

In q1, all trig functions are positive. q2, sin and csc is positve. hope this helps!!

A rectangular blanket is 4 times as long as it is wide. Its width is 8 yards. What is the area of the blanket?​

Answers

Answer:

The area is 256

Step-by-step explanation:

Taylor had a bag of 28 marbles. 5 red, 9 blue, 8 yellow, and 6 black. If Taylor pulled out a yellow one and DID NOT put it back in. What is the
probability of pulling out a blue marble (SIMPLIFY YOUR FRACTION).
Blank 1:
Blank 2:

Answers

Answer: 1/3

Step-by-step explanation:

Number of red marbles = 5

Number of blue marbles = 9

Number of yellow marbles = 8

Number of and black marbles = 6

Total number of marbles = 28

If Taylor pulled out a yellow one and didn't replce it, there'll be 27 marbles left since one has been removed, then the probability of picking blue marbles will be:

= Number of blue marbles / Total marbles

= 9 / 27

= 1/3

The probability of picking a blue marble is 1/3.

Find the area of the shaded region. The radius of the large circle is 10 m. Round answer to the nearest hundredth.

Answers

Answer:

hello the figure related to your question is missing attached below is the missing figure

answer : 157.08 m^2

Step-by-step explanation:

Calculate the area of the shaded area

= Area of the large circle - Areas of the small circles

= (( [tex]\frac{\pi }{4}[/tex] ) * D^2) - 2(  ( [tex]\frac{\pi }{4}[/tex] ) * d^2 )     given that the small circles are congruent

= (( [tex]\frac{\pi }{4}[/tex] ) * 20^2 ) - 2 ( ( [tex]\frac{\pi }{4}[/tex] ) * 10^2 )

= 314.16 - 157.08

= 157.08 m^2

A trader bought 12 shirts for $150 altogether. He sold 11 of them for $20 each and one for $10.
Work out his overall percentage profit or loss,

Answers

Answer:

53%

Step-by-step explananation:

how much did he sell them for?

11*20 = 220

220+10 = 230

so he got a total of 230 off of buying 150

percent is difference of original

(230-150)/150

80/150

about 53%

I think this is right

HELPPPPPPPPPPPP PLEASEEEE

Answers

Answer:

H. 13.5 in²

Step-by-step explanation:

[tex]V=LWH/3[/tex]

[tex]V=(3)(3)(4.5)/3[/tex]

[tex]V=13.5 in^{2}[/tex]

--------------------

hope it helps...

have a great day!!

please help me i'm going to give you brainless

Answers

Answer: 280 children

Explanation: Each grade has 70 kids. You have 4 total grades (3rd, 4th, 5th, and 6th grade). You have to add the number of kids you have in every grade. In this case, 70 children in 3rd grade, 70 children in 4th grade, 70 children in 5th grade, and 70 children in 6th grade. The problem would look like this:

70 + 70 + 70 + 70

Then your answer is 280 when you add them all together!

Dog food bad contains 18 cups to fill it up his friend dog eats 1 1/2 each day he says he'll be able to feed his dog for 27 days that true?

Answers

Answer:

It's not true because 18 cups will only last 12 days, not 27 days.

Step-by-step explanation:

1 1/2 = 3/2

3/2(27) = 40.5 cups

18 = 3/2c

c = 12

Write an expression that matches; “8 less than z”

Answers

z - 8 is the expression

Answer:

ᗴ᙭ᑭᖇᗴՏՏIOᑎ:

[tex]z - 8[/tex]

On a coordinate plane, what are the center and radius of the circle represented by
(x+3)^2 + (y – 5)^2 = 25?

A. Center: (-3, 5); Radius: 25
B. Center: (3, -5); Radius: 25
C. Center: (3, -5); Radius: 5
D. Center: (-3, 5); Radius: 5

Answers

The answer is D.

Center is (-3, 5) and Radium is 5

3x-5>-41
Solving inequality

Answers

Answer:

x [tex]\geq 11[/tex]

Step-by-step explanation:

x can equal anything -11 and above

Which Equation Is equivalent To Log2y =x+7

Answers

Answer:

the second one

Step-by-step explanation:

The frequency,f kilohertz of a radio wave is inversely proportional to its wavelength, Ym. The frequency of a radio wave that has a wavelength of 3000m is 100 kHz. Find (i) The frequency of a radio wave that has a length of 500m (ii) The wavelength of a radio wave that has a frequency of 800kHz

Answers

Step-by-step explanation:

The frequency of a radio wave that has a wavelength of 3000m is 100 kHz

(a) Wavelength = 500 m

We know that,

[tex]f=\dfrac{c}{\lambda}\\\\f=\dfrac{3\times 10^8}{500}\\\\f=600\ kHz[/tex]

(b) Frequency, f = 800 kHz

[tex]\lambda=\dfrac{c}{f}\\\\\lambda=\dfrac{3\times 10^8}{800\times 10^3}\\\\\lambda=375\ m[/tex]

Hence, this is the required solution.

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A. Skewed Right
B. Uniform
C. Skewed Left
D. Normal

Answers

Skewed Right I think. I'm not sure but try it

Answer:

C. Skewed Left

Step-by-step explanation:

Because the first 2 age group have minimal runners than the next 3 age groups spikes and the last 4 are very low once again. the spike occurs relavity near the beggining so if graphed it would be skewed left.

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