Mathematics High School

If A=-3 what is a^2 and 3a^2

If A=-3 What Is A^2 And 3a^2

Answers

Answer 1

Answer:

-6, 9, and 81

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

A) -6

B)  -9

C) -27

Related Questions

Find the measure of angle A

Answers

Answer:

43°

Step-by-step explanation:

(x + 53)° + (x + 74)° + 73° = 180°

(x + 53 + x + 74)° = 180° - 73°

(2x + 127)° = 107°

2x + 127 = 107

2x = 107 - 127

2x = - 20

x = - 20/2

x = - 10

[tex]m\angle A = (x +53)\degree \\\\

m\angle A = (-10 +53)\degree \\\\

m\angle A = 43\degree \\\\

[/tex]

What is the slope of a line that passes through the points (-2,4) and (-6, 12)?
-2
2
-1/2
1/2

Answers

It is -1/2
-2- -6 = 4
4-12= -8
-4/8 = -1/2

Answer:

-2

Step-by-step explanation:

first, you want to graph your points on a graph. A really good online graphing calculator i like is called desmos.

next, slope is rise over run. count how many units up or down from leftmost point to the other. in this case it is -8.

third, find the run part of the slope by counting units right or left from the leftmost point to the other. in this case it is 4.

last, but the two numbers together in a fraction and simplify. rise over run.

-8/4 which simplifies to -2/1 which is the same thing as -2

Sahai took $40 to the local carnival. The entrance fee to get into the carnival cost X dollars. Sahai paid for 5 people (including herself) to get into the carnival. Write an expression that represents the amount of money, in dollars, that Sahai had after she paid for the entrance fee for the 5 people.

Answers

Answer:

40-5x

Step-by-step explanation:

Sahai starts with 40 and loses 5 times the entrance fee, which is represented by x. So, 40-5x is the expression

13(2x)+5x as a simplified expression

Answers

Answer:

31x

Step-by-step explanation:

PEMDAS. Multiplication first.

13*2x is 26x. Then add 5x. 31 x

Hope this helps you :D

#Team Rainbows

at Best Buy they have a stereo system at the cells of 22000 and is on sale for 15% and sales tax is 7%. what is the final cost
​

Answers

Answer:

4,840

Step-by-step explanation:

15% of 22000 is 3300 and 7% of 22000 is 1540 so add those together to get 4840.

Which of the following is a function? *
{(5, 0), (0, −8), (5, −5)}
{ 5, 0, -8. -5}
Option 5
{(5, 0), (0, 5), (−5, −5)}
{(5, 0), (−8, −5), (−8, 5), (−5, −8)}

Answers

{(5,0),(0,5),(-5,-5)}

Answer:

{(5,0),(0,5),(-5,-5)}

Step-by-step explanation:

if a snail crawls 12 centimeters per hour, how long will it take for the snail to travel 1 meter?

Answers

Answer:

8 1/3 hours : )

What are the solutions of x2 + x = 11

Answers

Answer:

x = 11/3

Step-by-step explanation:

x2 + x = 11

Combine like terms

3x = 11

Divide both sides by 3

x = 11/3

Please help!! And show work please! I'll give brainlist..!

Answers

what you put is correct because two negatives make a positive so it would be 5 + 7 making it the greatest value

If the width of a rectangle is 9 ft less then twice it’s length and the perimeter is 30 feet, what are the dimensions of the rectangle?

Answers

9 times 30, and the other number would be 18 :))

The dimension of the rectangle is,

The length of the rectangle is 7 feet.

And the width of the rectangle is 8 feet.

Given that,

If the width of a rectangle is 9 ft less than twice its length and the perimeter is 30 feet,

We have to determine,

What are the dimensions of the rectangle?

According to the question,

Let, the width of the rectangle is W,

And the length of a rectangle is L = 2W - 9,

The perimeter of the rectangle is = 2(L+W)

Where perimeter is 30 feet,

Therefore,

[tex]30 = 2(2W-9+W)\\\\30 = 2(3W-9)\\\\30 = 6W-18\\\\30 + 18 = 12W\\\\48 = 6W\\\\W = \dfrac{48}{6}\\\\W = 8 \ feet[/tex]

And the length of a rectangle is,

[tex]L = 2W - 9, \\\\L= 2(8) - 9\\\\L = 16-9 \\\\L =7 \ feet.[/tex]

Hence, The dimension of the rectangle is, the length of the rectangle is 7 feet, and the width of the rectangle is 8 feet.

To know more about Rectangle click the link given below.

https://brainly.com/question/19005097

3. If RS = 4y -2, ST = 5y -3, and RT = 16y+8. What is the value of y? Find RS, ST, and RT.

Answers

GOING SEVENTEEN SUPREMACY

Martin and Helen both are computer technicians and they repair all kind of computers. Martin makes $50 a day plus $25 per repair. Helen makes $20 a day plus $35 per repair. Write an expression and simplify it for Martin and Helen’s total daily earnings if they make the same number of repairs r. I'll give thanks and 5 stars if answered!!

Answers

Answer:

In the equation the $50 would be the start up or in other words the y-intercept

Step-by-step explanation:

Answer:

Martin made more. He mad $75 dollars.

Step-by-step explanation:

So martin makes $50 a day plus $25 per repair. so he made $75 dollars. And Helen makes $20 a day plus $35 per repair so he maid $55 dollars less so martin made more. No they don't make the same number of repairs.

For f(x) = -4 - 6x, find f(5)

Answers

Answer:

-34

Step-by-step explanation:

Insert the 5 into the place of the X.

Then solve:

-4 - 6(5)

= -4 - 30

= -34

The answer is -34, the equation is asking what the output would be if x were to equal 5. -6 multiplied by 5 equals -30, then -4 and -30 combined is -34

Simplity
82 - 6(7 - 4) + 2

Answers

Answer:

66

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Step-by-step explanation:

Step 1: Define Expression

82 - 6(7 - 4) + 2

Step 2: Evaluate

(Parenthesis) Subtract:                    82 - 6(3) + 2Multiplication:                                   82 - 18 + 2Subtraction:                                      64 + 2Addition:                                           66

Mary borrowed $840 from her friend to help pay for a trip. She paid him $40 every
week until the debt was paid.
How many weeks did it take Mary to pay her debt?
A. 40
B. 35
C. 32
D. 21

Answers

Answer:

d.21

Step-by-step explanation:

840/40=21

Answer:

21 Weeks

Step-by-step explanation:

$840 ÷ 4 weeks = 21

You can also reverse work this by multiplying $40 by the other choices!

$40 x 40 = $1600

$40 x 35 = $1400

$40 x 32 = $1280

$40 x 21 = $840

As we can see, D is the only answer that makes sense, therefore 21 weeks is the answer.

≧◡≦

Mocha here! If this answer helped you, please consider giving it brainliest because I would appreciate it greatly. Have a wonderful day!

Can someone please explain to me how to calculate your GPA and also on how to find out what your total grade points is... I stay confused

Answers

Answer:

Here is the explanation of how I was taught to do it :)

Step-by-step explanation: In its easiest form, an A=4, B=3, C=2, D=1, F=0.

If the class is 2 credit.......Multiply each numeric grade value by the number of credits the course was worth

Add these numbers together

Divide 45 by the total number of credits you took, in this example,13.

Your Weighted by Credit Hour GPA = 3.46

It depends on your school. Sorry this was not the most clear, I was taught like 2 years ago, and now I kinda forgot but hopefully this helps a lil dont get mad :)

If the m =1/2 and the b = -2, then the linear equation is

Answers

Answer: y=  1/2x - 2

Step-by-step explanation:

y= mx+b

m= 1/2 (plug it in)

b= -2 (plug it in)

x= ?

Select all ratios equivalent to 5:10 select all that apply

Answers

Answer:

8:16 and 7:14

Step-by-step explanation:

5:10 is a 1 to 2 ratio and so are 8:16 and 7:14

Answer:

8:16 and 7:14

Step-by-step explanation:

It is a half and half ratio

7. Peter is trying to get his cat out of a free in
his backyard. The cat is 12 feet above the
ground, and Peter has to put the base of his
ladder q feet away from the tree because of
mud. How long does the ladder need to be in
order to reach the cat?

Answers

Answer:

13 ft

Step-by-step explanation:

what is 4j+8=56 full answer

Answers

Answer:

j=12

Step-by-step explanation:

hope this helps

there are 9 children in a class who take the bus to school and there are 15 total children in the class what percentage of the children take the bus to school?

Answers

Answer:

60%

Step-by-step explanation:

Answer:

60%

Step-by-step explanation:

9/15=.6

.6 as a percent is 60%


Giving brainliest please help!

Answers

Answer:

22 or   21

Step-by-step explanation:

HOP THAT  HELPS

What is the RANGE and the IQR for 17,18,22,17,16,21,19,and16

Answers

Answer:

so 1- 2 is  negative 3 so minus tha by 3 than 4x2

Step-by-step explanation:

If EF - 8x+ 17, PG - 37, and EG - 134, find the value of x. The drawing is not to scale.
F
G
x-12
x 80
X-10
X-26

Answers

X-12 trust me I cheated on this test

What is 50,000 + 7,000 + 400 + 10 + 6 in standard form?

Answers

Answer:

57,416

Step-by-step explanation:

50,000 + 7,000 + 400 + 10 + 6

50,000 is in the ten thousands place.

7,000 is in the thousands place.

400 is in the hundreds place.

10 is in the tens place.

6 is in the ones place.

57416 is the answer

following data, what would be the value of x?

Answers

Answer:

The answer is C. 10

Step-by-step explanation:

Answer:

Step-by-step explanation:

question please

help please? 26x-2(3x+4y)-10y

Answers

Answer:

20x-18y

Step-by-step explanation:

26x-2(3x+4y)-10y

26x-6x-8y-10y

20x-18y go doawnload the app photomath its a great tool

I NEED HELP I'M TAKING FINALS!
If five times a number is subtracted from 27, the result is nine more than four times the number. Which equation can be used to find the value of the number?
A. 5(27 - x) = 9 + 4x
B. 27 - 5x = 4(9 + x)
C. 27 - 5x = 4x + 9
D.
5x - 27 = 9 + 4x

Answers

Answer:

C

Step-by-step explanation:

Listen, just think about it.

If 5 times “x” is subtracted from 27 (so 27-5x) if the result/answer

(meaning its equal “=“ ) is 9+ than 4 times “x” (soo basically like 4x +9). If you put all of those 2 equations together you get 27 x 5x = 4x + 9.

(I use “x” to as the variable and remember when a variable is next to a number it means you have to multiply whatever that number is)


Pleaseee helpppp!!!!! I keep getting this answer wrong on the test :(

Answers

Next time study more! I know its hard but you can do it keep trying ur best :)

hi need help with math
some one help

Answers

Answer:

Ether C or D. hope this helps

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