MATHEMATICS HIGH SCHOOL

Simplify:5a+6a^2+2a^0-3a^2-9a

3a^2-4a+2

-a^3+2

-a^2+2

3a^2-4a+1

Answers

Answer 1
Answer:

Answer:

I believe that the answer is '3a^2-4a+2

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Can anyone help pleas

Answers

Answer:

x = -1 and x = -3

Step-by-step explanation:

GIven the graph of the function y = f(x), where the problem asks for the value of x when f(x) = -6:

Looking at the graph where the value of the y-coordinate is -6, it shows that it has two corresponding x-ccordinates: x = -1, and x = -3  Therefore, the value of x when f(x) = -6 is x = -1 and x = -3.

Please mark my answer as the Brainliest, if you find this helpful :)
Hello! The answer is -1. Hope this helps

Please help me with my question!!

Answers

Same with the other question we did, we are given the area of each tile which is 4 1/2in^2.

All we need to do it divide.

252 / 4.5 = 56

So, she would need 56 tiles in total.

Best of Luck!

Answer:

56 tiles

Step-by-step explanation:

(252)/(4(1)/(2))= \n\n\n(252)/((9)/(2))= \n\n\n252* (2)/(9)= \n\n\n\boxed{56}

Hope this helps!

Sam takes out a $167,000 mortgage for 20 years. He makes monthly payments and at the end calculates that he has paid $240,141 towards the mortgage. What is the approximate APR?3%
4%
6%
7%

Answers

Answer:

About 3%

Step-by-step explanation:

3% of $167,000 is $5,010

5010 times the 20 years is 100200 add that to the 167000 and you get $267,200

The actual answer is about 2.4% but 3% is the closest.

Joe has eaten 2/5 of a pizza. Jane has eaten 1/8 of a pizza how many times more pizza has joe eaten than Jane

Answers

Well, the first thing you would do is find like denominators for each fraction.

Since the smallest common term between the two is 40, that will be your denominator for each. Then you would multiply the numerator by the number your denominator was multiplied to get to 40. So, you would end up with 16/40 because 5*8=40 and 2*8=16 and 5/40 because 8*5=40 and 1*5=5.

After that, you would just subtract them.

16/40 - 5/40 = 11/40 and as a decimal that is 0.275. So, Joe has eaten 0.275 more pizza than Jane.

Hope this helps! :)

7x+3y=22 4y=20 I need to know how to write this equation out with the answer

Answers

\begin{cases} 7x+3y=22 \n 4y=20 \ \ /:4 \end{cases}\n \n\begin{cases} 7x+3 \cdot 5=22 \n y= 5 \end{cases}\n \n\begin{cases} 7x+15=22 \ \ |-15 \n 4y=20 \end{cases}

\begin{cases} 7x+15 -15=22 -15 \n y=5 \end{cases}\n \n\begin{cases} 7x =7\ \ / :7 \n y=5 \end{cases}\n \n\begin{cases} x =1 \n y=5 \end{cases}\n \n
7x+3y=22
4y=20

4y=20
y=5

Substitute to first equation
7x+15=22
7x=7
x=1

Z+w−3=k
6z−10w=8

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Answers

Answer:

if your looking for z it is 5/8k+2.375

Step-by-step explanation:

Answer:

Step-by-step explanation:

Please, include the instructions.

I'm assuming you want to solve this system of linear equations for z and w, assuming that k is an unknown constant.

Use the method of elimination by addition and subtraction.  To eiiminate w, multiply all four terms of the first equation by 10, obtaining:

10 z + 10w - 30 = 10k

6z   - 10 w        = 80

Then 16z - 30 - 80 = 10k, or

16z  -110 = 10k,  Simplifying this, we get:

     

      10(k + 11)  

z = ---------------

            16

Substituting this expression for z into the first equation, we get:

(10/16)(k + 11) + w - 3 = k.  We must solve this for w:

-(10/16)(k + 11) + w - 3 = k), or

-(10/16)(k + 11) - w + 3 = -k

Then -(10/16)(k + 11) + 3 + k = w

and so the solution, in terms of the unknown constant k, is

      10(k + 11)  

(     --------------,  -(10/16)(k + 11) + 3 + k   )

            16
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