MATHEMATICS MIDDLE SCHOOL

SOS *Algebra one*Two functions are shown in the table below.


Function 1 2 3 4 5 6
f(x) = −x2 + 4x + 12
g(x) = x + 2



Complete the table on your own paper, then select the value that is a solution to f(x) = g(x).
x = 2
x = 3
x = 5
x = 6

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Answers

Answer 1
Answer: This can be done in two ways
One method is to check the answer options in both f(x) and g(x) and select the one that matches for both.
The second is to form a quadratic equation and solving as such:
f(x) = g(x)
-x² + 4x + 12 = x + 8
x² - 3x - 4 = 0
(x - 4)(x + 1) = 0
x = 4; x = -1
Only x = 4 is given in the options, so the answer is B
Answer 2
Answer:

Answer: The correct answer is x=5


Step-by-step explanation:

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Plz help me solve this problem i think its a but not sure plz help me...

look at pic

Answers

it is A hope this help

Yes, A is correct, why did you need to ask this?

Does the temperature 0 degrees mean the same thing on both scales.

Answers

no, 0⁰C is 24⁰F and 0⁰F is about -18⁰C
no if its 0 degrees fahrenheit then it would be -17.7778 degrees celsius 

Which number is between 0.6 and 7/9

A 23/27
B 31/45
C 14/27
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Answers

The best way to find the answer is to convert the fractions to decimals using a calculator.
(7/9) is (0.7777). This means that we are looking for a number between 0.6 and 0.7777.
A. (23/27) is .8519. This is not the answer.
B. (31/45) is .6889. This falls in between 0.6 and 0.777 because 0.6 is less than 0.6889 and 0.7777 is greater than 0.6889.

There is no reason to look at C and D because we know that B is the answer.

What percent Is 27 percent of 300

Answers


"27 percent" means 0.27

"of" means "times"

"27 percent of 300" means   (0.27 x 300)  =  81 .

At the beginning, you asked what percent this is.

81 is 8,100 percent .
In order to solve this you need to set up a PROPORTION. Remember that proportions are your friend!

27/100 = x/300

Now just solve for x!

100x = 8100
x = 81

27% of 300 should be 81.

Cookies are on sale! Today each cookie costs $0.75 less than the normal price. Right now if you buy 7 of them it will only cost you $2.80! Write an equation to determine the normal price of each cookie (c).

Find the normal price of each cookie.

Answers

Well first to find out how much the cookies are on sale you do
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So the normal price for the cookies is $1.15 and the sale price is $0.40 cents

Are the ratios 3/5 and 9/15 proportional?How do you know?

Answers

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