Mathematics High School

Write each product using an exponent:

20 x 20

Answers

Answer 1
It’s 400 I’m sure.
I apologize if I’m wrong, or misunderstood the question.
Answer 2

Answer:

400 or the exponent is 20²

Step-by-step explanation:

20² or 20×20=400

Related Questions

a triangle with sides of length 9 cm,12cm and 15 cm is a right triangle true or fauls

Answers

Answer: True.

Step-by-step explanation:

a^2 + b^2 = c^2 (c is the longest)81 + 144 = 225225 = 225

Answer:

yes it is

Step-by-step explanation:

because 9^2+12^2 = 15^2

225=225

Help? I dont get it

Answers

Answer:

its 6%

Step-by-step explanation:

0.60 and 0.6 is the same thing. 6% is bigger than the other two.

Answer:I believe that the middle answer (6%) should be circled.

Step-by-step explanation: Six percent or 0.06 in decimal form is different than 0.60, which is the equivalent of the other two answers.

√5× √5×√2×√2
please answer this

Answers

Answer:

10 .  

how i got this calculator

Answer:

√5×√5×√2×√2

=5×2

=10

Step-by-step explanation:

hope it helps

Noah buys coffee sachets to use in his coffee maker. One day he buys enough coffee sachets to last him four weeks. He uses 3 coffee sachets each day. There are 10 coffee sachets in a pack. A pack costs £2.99 How much does Noah spend?

Answers

Step-by-step explanation:

1 week has a total of 7 days

4 weeks (7, 14, 21, 28) 28 days

3 coffee sackets each day so 28x3=84

10 sackets in a pack 9 packs

£2.99x9=26.91

Noah spends £26.91

Work our the surface area of this cylinder?

Answers

Answer:

[tex]A=522.97\ \text{cm}^2[/tex]

Step-by-step explanation:

Given that,

The diameter of the cylinder, d = 8 cm

Radius, r = 4 cm

Height of the cylinder, h = 16.8 cm

We need to find the surface area of this cylinder. The formula for the surface area of the cylinder is given by :

[tex]A=2\pi r^2+2\pi rh\\\\=2\pi r(r+h)\\\\=2\times \dfrac{22}{7}\times 4\times (4+16.8)\\\\=522.97\ \text{cm}^2[/tex]

So, the surface area of the cylinder is [tex]522.97\ \text{cm}^2[/tex]

The cost of beauty products was raised 4%. What is the cost of something that was previously $30?

please help me
​

Answers

Answer:

$31.2

Step-by-step explanation:

multiply 30 by 4%

30 × 0.04=1.2

then add 1.2 to 30 to get

31.2

please help giving brainiest

Answers

Answer: 1,000 units, 1300 dollars

Step-by-step explanation:

How many positive integers from 1-100 (including 1 and 100) are divisible by 3 or by
5, but not by both?

Answers

i counted myself because i don’t know a formula and i got 41 i hope i’m not wrong

Order the following numbers from least to greatest.
Put the lowest number on the left.
72 , 48 , 24 , -24

Answers

Answer:

Step-by-step explanation:

-24, 24, 48, 72

Hope this helps :)

Someone help I been stuck on this for 10 mins

Answers

Answer:is there more info

Step-by-step explanation:

Answer:

c^2 - b

Step-by-step explanation:

There are no like terms.

Philip is saving money to buy a new computer. He saves the same amount of money each
week.
• After 2 weeks of saving, Philip still needs $520 to buy the computer.
• After 6 weeks of saving, Philip still needs $300 to buy the computer.
How much does the computer cost?

Answers

Answer: 1020

Step-by-step explanation:

300 + 200 = 500 + 520 = 1020

please help me i need this really bad

Answers

The answer is 3
Multiply 6 by 3 to get the total amount of money for the books then minus the answer 18 which you get from 6 x 3 = 18
Then minus 18 from 21 to get $3
21 - 18 = 3

Answer:

It's 3!

Step-by-step explanation:

3 books times 6 dollars each = 18 dollars.

21 minus 18 dollars = 3.

X/4.2=8.5 what is X?

Answers

Answer:

x=1.8 should be the answer, but I'm not sure so I'm sry if I'm wrong

please help me its about Solving by substitution ill give brainly

Answers

Answer:

I believe if you are solving for x then the answer is 3... I am about 90% sure

Step-by-step explanation:

Answer:

(3, 5)

Step-by-step explanation:

Use the equation already isolated and plug it into the other equation

3x + 2( x t 2)= 19

solve for x

3x + 2x +4 = 19

5x= 19-4

5x= 15

x= 15/5

x=3

Now plug x (3) into one of the equations to find y

y= 3 + 2

y= 5

Put it in (x, y) form, (3, 5)

What is the area of the circle? Use 3. 14 as an estimate for pi.
A. 21.98 m2
B. 43.96 m2
C. 153.86 m2
D. 483.12 m2
E. 615.44 m2

Answers

153.86m^2

Step-by-step explanation:

diameter=14

radius=14/2=7

area of circle=pi×r^2

"" =3.14×7^2

=3.14×7×7

=153.86m^2

Please help ?
11= 2α +6-1

Answers

A=3 hahshsjekekejejnanansndfdjsjd sorry with the random letters it said 20 words or longer
Answer: a=3

Explanation: Switch sides
2a+6-1=11
2a+5=11
Subtract 5 on both sides
2a=6
Divide by 2 on both sides
2a/2=6/2
a=3

is this right? Either Table C or Table D shows a proportional relationship.

Plot all the points from the table that shows a proportional relationship.

Table C

x 3 4 5 6
y 1 2 3 4

Table D

x 2 4 8 10
y 1 2 4 5

Answers

Answer:

yee .......................

Solve the inequality
x/3 - 2 <4

Answers

The solution for the given inequality is x<18.

What are inequalities?

Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.

The given inequality is x/3 -2<4.

Add 2 on both the sides of an inequality, we get

x/3<6

Multiply 3 on both the sides of an inequality, we get

x<18

Therefore, the solution for the given inequality is x<18.

To learn more about the inequalities visit:

https://brainly.com/question/20383699.

#SPJ2

Joshua took a math contest with 25 questions. Each correct answer earned 6 points while each incorrect answer deducted 4 points. Joshua answered every question and earned 100 points. How many questions did Joshua answer correctly?

Answers

Answer:

20

Step-by-step explanation:

20*6=120

4*5=20

120-20=100

Find the volume of this 3D shape please timed!!

Answers

Answer:

74 ft cubed I believe

Step-by-step explanation:

74 cubicfeet

Step-by-step explanation:

uhh quick maths 36+36+2

How is 7 (x + 2) different? Brainstorm how this problem could be simplified

Help ples!!!!

Answers

answer:

distribute

step-by-step explanation:

7(x+2)

7(x)=7x

7(2)= 14

7x+14

WILL MARK BRAINLIEST!!! PLS HELP ASAP!!!
Lorinda has started to think about saving for retirement. She reads a recommendation that says she should at least 3/10 of her income because she is over 40 yrs old.
Lorinda makes $69,000 a year. How much should she save in one year according to this recommendation?

Answers

Answer:

20700

Step-by-step explanation:

3/10ths of 69,000 is 20,700

Answer:

Lorinda should save $20,700 per year.

Step-by-step explanation:

Knowns:

Savings recommendation = 3/10 or 30% of her income

Her income = $69,000/year

We can solve this by multiplying 69,000 by .3 which equals 20,700.

Lorinda should save $20,700 per year for retirement.

I hope this helps!

-TheBusinessMan

FOR 47 POINTS PLEASE HELP
QUESTION 1
If RS is 2x+15, and VW is 3x+5, and UT is 6x-37. What is RS?

QUESTION 2
Angle J is (7x+2) Angle L is (25x-14)
What is (x)

Answers

Answer:

UV=25 units

Step-by-step explanation:

we know that

UW=UV+VW -----> by addition segment postulate

substitute the given values

4x+10=5x+5

solve for x

5x-4x=10-5

x=5

Find the value of UV

UV=5x

substitute the value of x

UV=5(5)=25 units

If x is the number of bags of M&Ms bought at $3 per bag, and y is the number of bags of Kit Kats
bought at $4 per bag, which expression represents the total amount spent on M&Ms and Kit Kats?

Answers

Answer:

3x+4y

Step-by-step explanation:

If you buy 2 M&Ms, you would get $6. Plugging in 2 for x would indeed give us 6, which makes sense.

If you buy 2 KitKats, you would get $8. Plugging in 2 for y would indeed give us 8, which makes sense.

Therefore, we can plug in x and y for the unknowns and add them together to find the total amount spent on both candies.

3x+4y
Then fill in the x and y as needed

Help please 1. Solve the system of equations using substitution. Show your work in the workspace provided below.
y= 6x +1
y=-2 +6x

2. Solve the system of equations using substitution. Show your work in the workspace provided below
2x-3y=-1
Y=x-1

Answers

Answer:

x=4 y=3

its the answer for both

hope that helps

A smart TV is on sale for 10% off. If the original price is $1,200, what is the sale price?

Answers

Answer:

$1,080 please mark brainliest if satisfied

Step-by-step explanation:

1200 times 0.1 equals 120

1200 minus 120 equals 1080

Answer:

You will get 120$ discount.

Step-by-step explanation:

The point (1, -5) is reflected across the y-axis. What are it's new coordinates?

Answers

Answer:

I'm in 6th grade  and we talked about this so I can help!

Step-by-step explanation:

The answer is (-1,-5) which is in quadrant 3

Answer:

It would be (-1, -5) because it is reflected across the y axis which means the y axis stays the same, but the x axis changes

Step-by-step explanation:

A 2 × 3 rectangle is partitioned into 6 congruent numbered squares as shown. A single 1 × 2 rectangle is placed to cover exactly 2 of the numbered squares. The covered numbers are then added together. How many different sums can result?

Answers

Answer:

7

Step-by-step explanation:

If you use your mouse or something to cover two of the squares at a time and then make tally marks then you should get 7. I'm not sure if i'm right though, so don't take my answer as the law or something like that.

2x + 5y = 1




Jdhdjdjdnbdnskdksknsnendjc

Answers

Slope intercept

y= -2/5x + 1/5

Which statement is NOT true concerning the graphing of a linear system?
You can only graph a system of linear equations with a graphing calculator.
Systems of linear equations that contain coordinates with fractions or decimals can be challenging.
You need to be careful and plot straight lines.
The point of intersection of lines that intersect at a shallow angle is difficult to determine.

Answers

Answer:

1

Step-by-step explanation:

the first one it's not right

The statement which is NOT true concerning the graphing of a linear system is You can only graph a system of linear equations with a graphing calculator.

What is graphing of linear system?

Every linear equation in two variables can be represented geometrically as a straight line in a coordinate plane. Points on the line are the solution of the equation. This why equations with degree one are called as linear equations.

Graphing of a linear system includes :

Recognize the relationship between the solutions of an equation and its graph.Graph a linear equation by plotting points.Graph vertical and horizontal lines

According to the question

Graphing of a linear system includes :

Systems of linear equations that contain coordinates with fractions or decimals can be challenging.You need to be careful and plot straight lines.The point of intersection of lines that intersect at a shallow angle is difficult to determine.

But NOT true for :

You can only graph a system of linear equations with a graphing calculator.

Hence, the statement which is NOT true concerning the graphing of a linear system is You can only graph a system of linear equations with a graphing calculator.

To know more about  graphing of linear system  here:

https://brainly.com/question/15099560

#SPJ2

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