3a-2a²-1) -(-2a²-2a²+1​

Answer:

16a

Step-by-step explanation:

9a^2/a=9a

7a^2/a=7a

9a+7a=16a

Answer:

$23 an hour.

Step-by-step explanation:

divide 172.50 by 7.5

Answer:

0.80m

Step-by-step explanation:

first, convert the measurement into centemeters

31.5 x 2.54

=80.01cm

to convert cm to m divide the answer by 100

80.01/100

=0.8001

then round the answer to the nearest hundredth

=0.80m

Answer:

Step-by-step explanation:

Answer:

1/3

Step-by-step explanation:

let a = adults

so then 2a = children

a/2a(+a) = a/3a

Answer:

0 and 4

Step-by-step explanation:

Answer:

W = -2

Step-by-step explanation:

8W + 20 = 4

=> 8W = 4 - 20

=> 8W = -16

=> W = -16 / 8

=> W = -2

Hope it helps :)

Please mark my answer as the brainliest

Answer: He can buy 5 ties

Step-by-step explanation:

12+10=22. 4x5=20. 22+20=42. If you add 1 more tie, you  will have $46, so you cannot add one more tie. So the most amount of ties he can buy is 5 ties, with $3 left to spare.

Answer:

1.Martin

2.Dining table

3.The children

4.Dishwasher

Step-by-step explanation:

Noun is a name of a person, place, animal, or a thing.

Stay safe, stay healthy and be blessed.

Thank you.

Answer:

I'm pretty sure all except K but i might be wrong

Step-by-step explanation:

Answer:

F and H

Step-by-step explanation:

Im sorry if its wrong

Answer:

D

Step-by-step explanation:

Answer:

90 pages in 10 hours :)

Answer:

90 pages

Step-by-step explanation:

First, you need to find the unit rate of how many pages he can read.

So, you divide 18 pages by 2 hours = 9 pages per hour.

Then, you multiply 9*10 hours to find out how many pages he will read in 10 hours.

You get 90.

Answer:

2%

Step-by-step explanation:

Answer: 2%

Step-by-step explanation: Method 1

Express the ending population as a percentage of the starting population:  

127000 /129540= 1.02

1.02×100=  102%

Subtract the starting 100% to get the percent increase:

102%−100%= 2%  

​

Answer:

Both functions are increasing on all intervals of x: True

Both functions have the same y intercept: True

Both functions approach the same value as x approaches infinity: True

Both functions approach negative infinity as x approaches negative infinity: True.

The functions have the same x intercept: False, they have no x intercept.

Step-by-step explanation:

f(x) is stated to be an exponetial function, hence

[tex]f(x)=ab^{x}[/tex]

f(0) is given as -12, so

-12=a

f(1) is given as -4, so

-4=-12b

b=1/3

This implies that

[tex]f(x)=-12(\frac{1}{3})^{x}[/tex]

g(x) is stated to be

[tex]g(x)=-12(\frac{1}{3})^{x}[/tex]

Conclusion: the functions are identical.

Answer:

so the answers are

the functions have the same y-intercept

both functions approach negative infinity as x approaches infinity

both functions are increasing on all intervals of x

Answer:

Can someone pls help me with mine

Step-by-step explanation:

Answer:

Step-by-step explanation:

You may get a bit help from this...

Hope so

:D

Answer:

10

Step-by-step explanation:

I simply divided 140/14 and got 10! Hope this helps :)

The 140 percentage of the number 10 is 14

Given data ,

To find the number that is 140% of another number, we can set up the equation:

140% of x = 14

So , 140 percentage of the number x = 14

To solve for x, we need to convert 140% to its decimal form, which is 1.40:

1.40 * x = 14

Now we can solve for x by dividing both sides of the equation by 1.40:

x = 14 / 1.40

Dividing 14 by 1.40 gives us:

On simplifying , we get

x = 10

Therefore , the value of x = 10

Hence , 140 percentage of 10 is equal to 14

To learn more about percentage click :

https://brainly.com/question/12861068

#SPJ6

Answer:

Step-by-step explanation:

I think u have the right answer because on the graph im confused how he can spend 100 minutes studying and get lower than one he spent almost 65 minutes less on

Answer:

27359265815502254

Step-by-step explanation:

52758552

Answer:

3x7

Step-by-step explanation:

7 + 7 + 7 is 3 x 7 because 7x3=21 and 7+7+7=21

Answer:

The variable that will represent the cost of one burger will be "b".

The equation is $39.78/17=b

Answer is $2.34

Step-by-step explanation:

Find out how many students she has.

Find out how much she paid for all burgers.

Divide amount she paid for all the burgers by the amount of students she has.

Finally, you have your answer.

Answer:

b

Step-by-step explanation:

answer: [tex]2^{3} a^{3} b^{12}[/tex]

steps:

you multiply each variable by 3.

example being: 2 x [tex]x^{3}[/tex] is [tex]2^{3}[/tex]

you do this with each of them

hope this helps! <3

Answer:

C

Step-by-step explanation:

Trevon started with $29.

After cleaning, his total rose to $41.

Since he received money, we add that amount (n) to his initial amount of money ($29), to equal his total amount ($41)

Answer:

Kelsey has 5/8 feet more rope

Answer: C

Step-by-step explanation:

Answer:

39.25 square ft

Step-by-step explanation:

[tex]Area \: of \: sector = \frac{45 \degree}{360 \degree} \times \pi {r}^{2} \\ \\ = \frac{1}{8} \times 3.14 \times {10}^{2} \\ \\ = \frac{3.14 \times 100}{8} \\ \\ = \frac{314}{8} \\ \\ = 39.25 \: {ft}^{2} [/tex]

Mrs. Carthill saved $120

Answer:

-11/6

Step-by-step explanation:

Slope can be found with this equation:

(y₁ - y₂) / (x₁ - x₂)

What this essentially tells us to do is to put one set of the x and y coordinates into x₁ and y₁, respectfully. Then, put the other set of x and y points as x₂ and y₂.

With this scenerio, we can substitute the given points into the formula.

(6 - (-5)) / (-4 - 2) =

(6 + 5 ) / (-6) =

11 / (-6) =

-11/6

The slope is  - 11/6