Which of these numbers is a prime number: 1, 11, 21, 51?

Answers

Answer 1

Answer:

11 and 51

Step-by-step explanation:

1 technically isn't a prime since a prime can only be divided by two things (itself and 1) and 1 can only be divided by 1.

21 can be divided by 1, 3, 7, and 21 so it is not prime.

Hope this helps!


Related Questions

Please help!! worth 20 points !!

Answers

Answer:

So you have it right. 15 5/7 in

Step-by-step explanation:

C = πd

All you can do now is substitute what has been given

Diameter = 5

Pi = [tex]\frac{22}{7}[/tex]

C = [tex]\frac{22}{7}[/tex] * 5

Multiply from across

22 * 5 = 110 ( numerator)

7 * 1 = 7 (denominator)

110/7 (improper fraction) = 15.71428571428571 ( as a decimal) = 15 5/7 ( as a mixed number)

Ik its 15 5/7 because 1. the 15 wont change, and 2 5/7 = 0.7142857142857143, which is the same one as above

Hope this helped!

Have a supercalifragilisticexpialidocious day!

So you have it right. 15 5/7 in

Step-by-step explanation:

C = πd

All you can do now is substitute what has been given

Diameter = 5

Pi = \frac{22}{7}

7

22

C = \frac{22}{7}

7

22

* 5

Multiply from across

22 * 5 = 110 ( numerator)

7 * 1 = 7 (denominator)

110/7 (improper fraction) = 15.71428571428571 ( as a decimal) = 15 5/7 ( as a mixed number)

Ik its 15 5/7 because 1. the 15 wont change, and 2 5/7 = 0.7142857142857143, which is the same one as above

Hope this helped!

Have a supercalifragilisticexpialidocious day!

What is the value of x?

Enter your answer in the box.

X = _

Answers

Pretty sure the answer is 5. x = 5

round -11.37 to the nearest whole number

Answers

-11 pls mark as brainliest

Answer:Rounding a decimal to the nearest whole number means to write down the whole number that the decimal number is closest to.

The decimal number of 1.3 is in between the whole numbers of 1 and 2.

1.5 is directly in between 1 and 2.

1.3 is closer to 1 than it is to 2 because it is on the left of 1.5.

is 2/5 a reduction, enlargement or isometric ​

Answers

2/5 is an enlargement

which one????????????????????????????

Answers

Answer:

1/x, first choice

Step-by-step explanation:

$\frac{x^3}{x^{-1}*x^5}$ = $\frac{1}{x^{-1}*x^2}$ =1/x

-1+5=4
3-4=-1
1/x
So I think the first one

what does the a in y=a(1+r)x represent?

Answers

Answer:

The function is of the form y = a(1 − r)t, where 1 − r < 1, so it represents exponential decay. Use the decay factor 1 − r to find the rate of decay. Write an equation. Solve for r.

The "a" in the expression y = a (1+r)ˣ represents the initial amount.

What is the expression?

An expression in math is a sentence with a minimum of two numbers or variables and at least one math operation. This math operation can be addition, subtraction, multiplication, or division.

Given, a exponential expression  y = a (1+r)ˣ

The exponential growth can alternatively be calculated using the formula f(x) = a(1 + r)ˣ, where the function is denoted by the f(x) term. The initial value of your data is represented by the variable. The growth rate is represented by the r variable.

Therefore, the initial amount is been represented by "a" in the given expression.

Learn more about expressions here:

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Help me plzz.........................20 POINTS!

Answers

Answer:

Look down

Step-by-step explanation:

2 apples, substitute 12 into the equation

10=12(0.75)+0.50y

10=9+0.50y

1=0.50y

y=2

It would be found on the line because both numbers are whole numbers, which are neccesary coordinates.

(Brainliest pls)

An Asian elephant typically weighs 12,000 pounds. In tons, how much does it weigh? A) 2 tons B) 3 tons Eliminate 4 tons D) 6 tons​

Answers

Answer:

6 tons

because 1 ton is 2000 pound exact

Answer:

the answer is D

Step-by-step explanation:

one ton weighs about 2,000lbs so divide 12,000 by 2 and you get your answer

Camryn ran for 13 minutes, walked for 17 minutes, ran for another 13 minutes, and then sat down and stretched in place for 17 minutes. Her total distance traveled is a function of time.

Which graph most accurately represents this scenario? (4 points)

A graph is shown with a starting point at the origin. The x-axis is labeled Time (in hours), and the y-axis is labeled Total distance (in miles.) The graph moves upward, then at 0.25 hours moves up at a slower pace until it reaches 0.5, where it moves up at a fast pace again before changing to a horizontal line from 0.75 to 1
A graph is shown with a starting point at 0 comma 1.2. The axis is labeled Time (in hours) and the y-axis is labeled Total distance (in miles). The graph is horizontal until x equals 0.25 hours, then moves downward to 0.5. From 0.5 to 0.75, the graph moves upward quickly, before continuing down to touch the x axis at x equals 1
A graph is shown with a starting point at the origin. The axis is labeled Time (in hours) and the y-axis is labeled Total distance (in miles). The graph moves upward quickly until 0.25 hours, then is a horizontal line until 0.5 hours. From 0.5 to .075 hours, the graph moves upward, and from 0.75 to 1 hour, it moves upwards at a faster rate
A graph is shown with a starting point at the origin. The axis is labeled Time (in hours) and the y-axis is labeled Total distance (in miles). The graph moves upward until 0.25 hours, then is a horizontal line until 0.5 hours. From 0.5 to 0.75 hours, it moves downward slowly, and from 0.75 to 1 hour, it moves down until it touches the x=axis

Answers

Answer:

The first one is correct.

Step-by-step explanation:

The first one is correct, because Camryn went fast. And then she she went at a slower pace, and then she picked up speed again and starting running. FFianlly, the line would go horizontally, because her distance is not changing.

Answer:

the first one is correct my hamster think it is correct

Step-by-step explanation:

What is the solution of the system?

Answers

Answer:

(-2, 6)

Step-by-step explanation:

We can simply do this by plugging in all of the coordinates. (I did this in my head quickly, so I know what it is; I'm just going to plug in the correct answer.) The correct answer is (-2, 6), so we're just going to plug them into the simplest equation, which is probably y=-3x. So...

6=-3(-2)

6=6

This answer is correct. If you're unsure about the answer, you can always check in the other equation. So...

3(-2)+2(6)=6

-6+12=6

6=6

Hope this helps and have an amazing day ^^

Answer:
(-2,6)


I hope this helps :)

i would really appreciate if someone could explain the process to solve it

Answers

Answer:

x = 12°

Detailed explanation down below.

Step-by-step explanation:

Ill be delighted to help

8° + 6x is an exterior angle. The measure of an exterior angle of a triangle is equal to the sum of the measures of the two non-adjacent interior angles.

In this situation, those two angles are 30° and 4x+2°

So lets put this in an equation

30° + 4x + 2° = 8° + 6x

4x + 32° = 6x + °8

Now lets subtract 8° from both sides to make it simpler

New equation =

4x + 24° = 6x

Lets evaluate X=

6x - 4x = 24°

2x = 24°

x= 24/2

x= 12°

What is the smallest minimum?

Answers

Answer:is that smallest is (small) while minimum is to the lowest degree

Step-by-step explanation:

Which of the following is not a typical cost associated with renting?
a. last month's rent
b. pet deposit
c. property tax
d. security deposit

Answers

Answer:

C

Step-by-step explanation:

Answer:

The correct answer is C.

Step-by-step explanation:

property tax

Inequality’s

c) Solve 3x + 7 > x + 19

Answers

Answer:

x > 6

Step-by-step explanation:

3x + 7 > x + 19 (Given)

2x > 12 (Subtraction Property Of Inequality)

x > 6 (Division Property Of Inequality)

Change 430 centimetres into metres

Answers

4.3m
hope that helps
PLS HELP ME ASAP I DONT HAVE TIME. IT ALSO DETECTS IF ITs RIGHT OR WRONG. PLS HELP ME ASAP I DONT HAVE TIME. IT ALSO DETECTS IF ITs RIGHT OR WRONG.

Bob's Gift Shop sold 700 cards for Mother's Day. One salesman, Sebastian, sold 4% of the cards sold for Mother's Day. How many cards did Sebastian sell?
Divide/scale down to solve for the missing percent.

Answers

Answer:

28

Step-by-step explanation:

700 x 4% = 700 x 0.04 = 28

Solve p = -44 ÷ 11.
GIVING BRAINLIST!!!

Answers

Answer:

p=-4

Step-by-step explanation:

Can you please answer My math question for 50 points and brainliest?

Does (5, 6) satisfy the inequality 2x - 3y> 6?

Answers

Answer:

yes

Step-by-step explanation:

Answer:

Nope, it does not satisfy the equation.

Step-by-step explanation:

2x - 3y > 6

2(5) - 3(6) > 6

10 - 18 > 6

-8 > 6

Hope this helps and I hope u have an Amazing day!

What is the equivalent expression for 8w - 16?

Answers

Answer:

8(w-2)

this is equivlent

The equivalent expression for (8w - 16) = 8(w - 2)

What is an Expression?

An expression in math is a sentence with a minimum of two numbers or variables and at least one math operation.

Given an Expression = (8w - 16)

(8w - 16)  = 8(w - 2)

Hence, the equivalent expression for (8w - 16) = 8(w - 2)

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40+40x0+1=
a.81
b.21
c.41

Answers

Answer:

C.41

Step-by-step explanation:

Thats the answer!!

Which of the following represents a nonlinear function?
A) y= 5x +7

B) y = x2

C) y=-2x

D) y=x

Answers

Answer:

y=x^2

Step-by-step explanation:

Answer:

y=x2

Step-by-step explanation:

Ms. Cohen's garden had 50 weeds when she began spraying her garden with pesticide. Every day she sprayed pesticide there were half as many weeds as the day before.


(Let x = the number of days and y = number of weeds)

Answers

Answer:

c or 50(0.5)^x

Step-by-step explanation:

The exponential function for the number of pesticides will be y = [tex]50(0.5)^{x}[/tex]

What is an exponential function?

An exponential function is a mathematical function of the following form: f(x) = a^x. where x is a variable, and a is a constant called the base of the function.

Given that, Ms. Cohen's garden had 50 weeds when she began spraying her garden with pesticide. Every day she sprayed pesticide, there were half as many weeds as the day before.

Let x = the number of days and y = number of weeds

According to question,

y = [tex]50(0.5)^{x}[/tex]

Hence, The exponential function for the number of pesticides will be y = [tex]50(0.5)^{x}[/tex]

For more references on exponential function, click;

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Micah is buying items for a birthday party. If he wants to have the same amount of each item, what is the least number of packages of cups does he need to buy?

Item: Cups Number in Each Package: 6

Item: Plates Number in Each Package: 8


Answer choices:

2 packages

3 packages

4 packages

5 packages

Answers

2 packages , that’s the answer .
The answer is A because I’m pretty sure you decide

Dayne has dinner at a local restaurant. The cost of his meal is $24. He wants to leave a 20% tip. What is Dayne's total bill including tip?

Answers

His bill will be $28.80 with the tip
Explanation:
To find the amount of the tip u turn 20% into a decimal 0.2 then multiple it by 24 you get 4.8 then add 24 to 4.8 and u get 28.8
They are right. I just did the math and the total came out to $28.80.

Find the equation of the exponential function represented by the table
below:

x y
0 3
1 6
2 12
3 24

Answers

Answer:

[tex]y=3(2)^x[/tex]

Step-by-step explanation:

[tex]y=3(2)^x[/tex]

Help please !!!!!!! there is a pic

Answers

Answer:

its is a because 6 divided by 1 is 6 which is a wgole so 6 wholes is represented by A

Solve the system ... y=3x-8 and y=-9x+4

Answers

1] y - 3x = -8
[2] y + 9x = 4

-3x + y = -8 9x + y = 4

Solve equation [2] for the variable y


[2] y = -9x + 4

// Plug this in for variable y in equation [1]

[1] (-9x+4) - 3x = -8
[1] - 12x = -12
// Solve equation [1] for the variable x


[1] 12x = 12

[1] x = 1
// By now we know this much :

y = -9x+4
x = 1
// Use the x value to solve for y

y = -9(1)+4 = -5

{y,x} = {-5,1}

HELP ASAP PLZ!!!!!!!!!!!!!!!!
On which graph does the red point have a clear meaning?

Answers

Answer:

its treadmill, or the third one

Step-by-step explanation:

did it on imagine math

Answer:

it is the treadmill one

Step-by-step explanation:

i did it on imagine math

if a 2/3 gallon of paint covers 3/5 of a wall, continuing at this rate how much paint will be needed for the entire wall?

A. 2/3
B. 1 1/9
C. 9/10
D. 3 1/3​

Answers

Answer:

B

Step-by-step explanation:

HOPE THIS HELPS

A table cost $350 there is also a sales tax of 7% how much does the table cost including the sales tax

Answers

Answer:

$374.50

Step-by-step explanation:

hope this helps plz mark brainliest

Answer:

$374.50

Step-by-step explanation:

Change the 7% in decimal so 0.07.

Then 0.07 x 350 = 24.50

Next do 24.50 + 350 = 374.50

 

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