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2 years ago

F(c)=x²-3x find f (-8)

Mathematics

2 answers:

horrorfan [7]2 years ago

7 0

Answer:

Step-by-step explanation:

Given function:

f(x) = x² - 3x

Find f(-8):

f(-8) = (-8)² - 3(-8) = 64 + 24 = 88

aliina [53]2 years ago

5 0

Answer:

put value of x in x

Step-by-step explanation:

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two classmates have decided to read all the volumes in a popular series of books. Katie has already read 4 volumes and will cont

scoray [572]

To solve this we can make it into an equation, which looks like this

y = 2x (for Rebecca)
y = x + 10 (for Alice)

The we subtract one equation from the other to solve

0 = x - 10
10 = x
x = 10

Now we replace x in whichever equation and we get 20

So, each girl will read 20 books for them to be at the same book.

Hope this helps, remember that Jesus loves you

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2 years ago

Can’t get these 15 for whoever answers

Yuki888 [10]

Answer:

Step-by-step explanation:

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1 year ago

Read 2 more answers

Find the value of x x=

Lena [83]

9514 1404 393

Answer:

x = 65

Step-by-step explanation:

The sum of exterior angles of a polygon is 360°.

40 + x + 77 + 2x + 45 = 360

3x + 165 = 360 . . . . simplify

x + 55 = 120 . . . . . . divide by 3

x = 65 . . . . . . . . . . . subtract 55

7 0

3 years ago

Multiply and simplify. 5x^2 / y^3 * 4y^2 / 10x

Marta_Voda [28]

For this case we have the following expression:
$\frac{5x^2}{y^3} * \frac{4y^2}{10x}$
Rewriting the expression we have:
$\frac{20x^2y^2}{10xy^3}$
Then, simplifying and by properties of exponents we have:
${2x^{2-1}y^{2-3}} 

{2xy^{-1}}$
Rewriting we have::
$\frac{2x}{y}$
Answer:
The simplified expression is given by:
$\frac{2x}{y}$

3 0

3 years ago

What is the median value of the data set shown on the line plot?

wlad13 [49]

30 is the median value

Hope that this helped

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3 years ago