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algol13
3 years ago
5

PLEASE HELPPPP ASAPPPIf the function y=2x-8 has an input of x = -3, what is the output?

Mathematics
2 answers:
JulijaS [17]3 years ago
8 0

Answer:

y = 2*x - 8

y = 2*3 - 8

y = 6 - 8

y = -2

Hope this helps ;)

Firdavs [7]3 years ago
7 0

Answer:

-14

I used a calculator :/

Step-by-step explanation:

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How to simplify this expression
dexar [7]

Answer:

  \dfrac{x+2}{x+1}

Step-by-step explanation:

Factor the numerator and cancel common factors from numerator and denominator.

  \dfrac{x^2-4}{(x-2)(x+1)}=\dfrac{(x-2)(x+2)}{(x-2)(x+1)}=\dfrac{x+2}{x+1}

5 0
3 years ago
In 1980, the number of high school dropouts in a country was 5217 thousand. By 2008, this number had decreased to 3120 thousand.
Veseljchak [2.6K]

Answer:

74893 students per year

Step-by-step explanation:

The Average rate of change is calculated as

= Difference in number of students / Difference in years

= 3120 thousand - 5217 thousands/ 2008 - 1980

= (3120000 - 5217000)/(2008 - 1980)

= -2097000/28

= -74892.857143 per year

Therefore, the average rate of change

per year in the number of high school dropouts is approximately 74893 students per year

8 0
3 years ago
Please help!!!!!!<br><br> Rewrite this equation in terms of y<br> 2x-3y=22
Leona [35]
The answer is y = 2/3x - 22/3
4 0
2 years ago
Read 2 more answers
Let $r$ and $s$ be the roots of $3x^2 + 4x + 12 = 0.$ Find $r^2 + s^2.$ Pls help.
nirvana33 [79]

Answer:

-56/9

Step-by-step explanation:

By Vieta's formulas,

$r + s = -\frac{4}{3}$ and $rs = \frac{12}{3} = 4.$ Squaring the equation $r + s = -\frac{4}{3},$ we get

$r^2 + 2rs + s^2 = \frac{16}{9}.$ Therefore,

$r^2 + s^2 = \frac{16}{9} - 2rs = \frac{16}{9} - 2 \cdot 4 = -\frac{56}{9}}$

5 0
3 years ago
What is the mean of this? 48, 12, 35, 57, 42, 15, 74, 29. <br>ILL GIVE U BRAINLYEST​
BlackZzzverrR [31]

answer:

48 + 12 + 35 + 57 + 42 + 15 + 74 + 29 = 312

divide by number of numbers,

312 / 8 = 39

the mean is 39.

<em>if correct, please mark the brainliest :)</em>

<em />

8 0
3 years ago
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