Find the sum of the prime numbers less than 21

Answers

Answer 1

Answer:

1;3;5;7;11;13;17;19 add all the number

Answer 2

Answer:

Step-by-step explanation:

Prime numbers less than 21 are

2, 3,5,7,11,13,17,19

Sum= 79


Related Questions

I need help!!!!

Write an equation of the line that passes through the points.

(0, −2), (4, −2)

Answers

First you need to find the slope:  (y2 - y1)/(x2 -x1) = (-4 -(-4))/(0-2) = 0.  So the line is horizontal, which means the y coordinate is constant and equal to -4, so the equation of the line is y = -4.

Find the area of the trapezoid.

Answers

Answer:

c

Step-by-step explanation:

an elevator starts at the 6th floor it goes up 7/4 plus and then it goes down 10 floors. a second elevator starts on the 20th floor. it goes down five floors three times, and then it goes up 12 floors. which elevator ends up on a higher floor?​

Answers

Answer:

Elevator 2

Step-by-step explanation:

Well let's make this simply by focusing on elevator number 1

it is on the 6th floor so we represent that as

6

Now it goes up 7/4 which is also the same as 1 3/4

the equation looks like this:

6+1 3/4

Add them together:

7 3/4

Now it goes down 10 meaning it is -10 add that to the equation:

7 3/4 - 10

Which is -2 1/4

Elevator number 1 is at floor number -2 1/4

Now for Elevator number 2

It is on the 20th floor which will make the equation looks like this:

20

Now it goes down five floors three times which can be represented like this:

20-5(3)

Simplify (Multiplication goes first according to the Order of Operations)

20-15= 5

Now it is 5 but it goes up 12 floors so the equation looks like this:

5+12

Simplify:

17

Now you could tell that elevator 2 ends up on a higher floor

Hope this helps!

Evaluate each value expression for the given value of the variable : 5y- 8 when y=3

Answers

The answer is 7
5(3)-8
15-8
=7
This equation will Equal to 7

10 = -3 + x

Question 4 options:

x = 13


x = 7


x = -30


x = -7

Answers

Step-by-step explanation:

10= -3+x

10+3=x

x=13 is ur ans

x reduced by 13 is at least 15

Answers

Answer:

Step-by-step explanation:

x-13≤15

x≤28

is this right babes xoxo

Answers

Answer:

Step-by-step explanation:

d: 24 + 5√ 30/6, 24 − 5√ 30/6

6x (x - 8) - 29 =

−3x=2

2cos(x)−√3=0

2sin2(x)−sin(x)=0

I answered it in the other one you put

What is the binary number for 13​

Answers

Step-by-step explanation:

[tex]13=8+4+1=2^3+2^2+2^0=\bold1\cdot2^3+\bold1\cdot2^2+\bold0\cdot2^1+\bold1\cdot2^0\\\\13_{10}=1101_2[/tex]

Answer:

♡ hola, madi here ♡

- 1101 is the answer.

hope your thanksgiving is amazing.

know your loved & make sure to

hug a loved one today.ʕ ꈍᴥꈍʔ

✧・゚: *✧・゚:・゚✧*:・゚✧・゚: *✧・゚:・゚✧*:・゚✧

Step-by-step explanation:

-4r +4 > 3r – 4
Any help?

Answers

Answer: r _< 8/7

Solving Steps:

The question is in the link pls help a student out guys this is my a question for my end of semester.

Answers

Answer:

4 <= pen weight <= 10

Step-by-step explanation:

<= , less than or equal to

4.7 x 10^-3___ 2^2
=
<
>

Answers

Answer:

<     (less than)

Step-by-step explanation:

4.7*0.001 ___ 4

0.0047___4

0.0047 < 4

A box has 39kg mass? the surfcae are of the box
has 150m. calculate the pressure exterted by the box on the floor

Answers

Answer:

2.548 pascal

Step-by-step explanation:

force=mass×acceleration due to gravity

force=39×9.8

pressure(p)=force/area

p=382.2/150

p=2.548 pa

solve for the indicated information. solve for x.

Answers

Answer:

-9

Step-by-step explanation:

x + 109 + x + 89 = 180° because these angles are supplementary

2x + 198 = 180 subtract 198 from both sides

2x = - 18 divide by 2

x = -9

hi guys ummm what 28 multiplied by 4

Answers

Answer:

112 :D hope this helps

Step-by-step explanation:

112

Answer:28x4=112

Step-by-step explanation:

Hope this helps and have a wonderful thanksgiving!!

help me please thanks in advance

Answers

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

From up to down ;

_________________________________

The first box :

[tex]f(n) = 3. ({2})^{n - 1} [/tex]

The second box :

[tex]f(n) = 2. ({4})^{n - 1} [/tex]

The third box :

[tex]f(n) = 2. ({6})^{n - 1} [/tex]

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

Identify the most precise name for the angle pair shown in the picture.​

Answers

These are complementary angles because from what this shows, they add up to 90 degrees. BTW Plz give brainliest, I need 5 to get to the next level.

Cisco collected 53 pieces of candy on Halloween. He put away 4 dozen pieces to save for later and ate the rest. What percentage of his candies did Cisco put away for later?

Answers

he put away 91% of the candy for later because 100 divided by 53 is 1.89 and 1.89 multiplied by 48 equals 90.72 which rounds up to 91. hope you get a good grade!

im tired of brainly today i will sue you if you dont clean up your ways!


Sincerely- Donald J Trump

Answers

Answer:

Great speech!

Step-by-step explanation:

F DONALD TRUMP !!!!!!!!!!!!!

Help please I mark brainliest

Answers

Answer:

negative 5w to the power of 3 .over w to the power of 4

simplify 15 and -3 to (-5/1)

make w to 4 to 4 -3w to the power of 8

then power simplification 6 over 8 to 3 and 4.

A glass is 1/3 full. Then 40cm3 of orange juice is poured in.
The glass is now 5/7 full. What is the total volume of the glass?

Answers

Answer:

105cm3

Step-by-step explanation:

subtract 5/7- 1/3

8/21=40cm3

21/21=105cm3=total volume

Answer:

5

Step-by-step explanation:

1. (9х3 + 5x)
- 7x - 3x)
Help me solve this and give me the answer.

Answers

Answer:

2x³ + 8x

General Formulas and Concepts:

Pre-Alg

Distributive Property

Alg I

Combining like terms

Step-by-step explanation:

Step 1: Define

(9x³ + 5x) - (7x³ - 3x)

Step 2: Solve

Distribute negative:               9x³ + 5x - 7x³ + 3xCombine like terms:               2x³ + 8x

PLEASE HELP ASAP!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

the 3rd istansa ha?

Step-by-step explanation:

Sana maka tulong

Can 6/-6 be simplified?

Answers

Answer:

yes. it would technically be -1

Step-by-step explanation:

Because fractions are technically division, 6 ÷-6 = -1

Answer:

yes it can be simplified to 6/6 thats the lowest term

Step-by-step explanation:

hoped it helped

can u give me a brainlist?

How does the graph of f(x) = |x| compare with the graph of g(x) = -2|x|

Answers

Answer:

the graph of g(x) will be vertically stretched by -2 and it will be steeper

Step-by-step explanation:

Joseph has 1/2 of a sub left after lunch. He eats 1/4 of this amount for snack. what fraction of a whole sub did Joseph eat for snack

Answers

Answer:

Step-by-step explanation:

I believe the answer would be 1/4 of the sub. Because they asked about the whole sub. And it says he ate 1/4 of the amount of that half of the sub for snack. So out of the whole sandwich it would be 1/4!

If it’s not the answer your looking for you can take it off...

But...

Hope it helps

what is 1080 miles on 15 gallons

Answers

Answer:

72 miles per gallons

Step-by-step explanation:

also can i have brainliest

The legs of a right triangle are 5 units and 15 units. What is the length of the hypotenuse? (4 points)
1. 200 units
2. square root 200 units
3. square root 250 units
4. 250 units

Answers

I’m pretty sure it’s 3 250 units

Answer:

3.) Square Root of 250

Step-by-step explanation:

One root of f(x)=x^3-9x^2+26x-24 is x = 2. What are all the roots of the function? Use the Remainder Theorem.

Answers

Answer:

The roots of the of the function are 2,3 and 4.

Step-by-step explanation:

The given function is

f(x) = x³ - 9x² + 26x - 24

It is given that x=2 is a root of the function. So (x-2) is a factor of f(x).

According to the remainder theorem if a function is divided by (x-c), then the remainder is equal to f(c). If f(c) is equal to 0, therefore c is the root of the function.

Use synthetic method to divide f(x) by (x-2).

f(x) = (x - 2) (x² - 7x + 12)

f(x)= (x - 2) (x² - 4x - 3x + 12)

f(x)= (x - 2) (x(x - 4) - 3(x - 4))

f(x)= (x - 2) (x - 4) (x - 3)

To find the roots equation the function equate the function equal to 0.

0 = (x - 2) (x - 4) (x - 3)

Equate each factor equal to 0.

x = 2,3,4

Therefore the roots of the function are 2,3 and 4.

(btw this is someone else's answer i found since i got a little confused myself heh)

Answer:

The roots of the of the function are 2,3 and 4.

Step-by-step explanation:

\The roots of the of the function are 2,3 and 4.

Which expression shows the product of 1.5×106 and 12,000?
note the the six is the power for 10

Answers

Answer:

Step-by-step explanation:

3/)038\=8262

What is the slope of the line that passes through points (-10, -3) and (5, 3)?​

Answers

Answer:

m = 6/15

Step-by-step explanation:

Answer:

(-0.4,1)

Have a beautiful day, and stay safe.

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