1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
irakobra [83]
2 years ago
13

If f(x) = 2(x – 3) + 4, findf (-8).

Mathematics
1 answer:
Cloud [144]2 years ago
6 0

Answer:

f(-8) = -18

Step-by-step explanation:

given :

f(x) = 2(x – 3) + 4

to find f(-8), simply substitute x= -8 into the function:

f(x) = 2(x – 3) + 4

f(-8) = 2[(-8) – 3] + 4

= 2[-8 – 3] + 4

= 2[-11] + 4

= -22+4

= -18

You might be interested in
Sales fall from 300 per week to 270 per week what’s the percentage change
weeeeeb [17]
Hi there! 

Your question: 

Sales fall from 300 per week to 270 per week what's the percentage change?

My answer:

The formula for calculating percent change is as follows: 

[(y2 - y1)/y1]*100=your percent change 

y2= first value 
y1=second value 

Plug the numbers in: 

[(300-270)/300]*100

[30/300]*100

0.1*100

10 

Therefore, the percent change is 10%

Hope this helps! Let me know if it's incorrect so I can fix it:)
8 0
3 years ago
Its my birthday soon, im turning 13 where would a fun place to go to
irinina [24]

Answer:

PAINTBALL

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
It is given that y varies inversely as x^2. If x is decreased by 50%, find the percentage change in y.
vova2212 [387]

Answer:

300%

Step-by-step explanation:

Given

y\ \alpha\ \frac{1}{x^2}

Required

Find the percentage change in y when x decreased by 50%

First, convert to equation

y\ = \ \frac{k}{x^2}

Where k is the constant of proportionality

When x decreased by 50%

Y = \frac{k}{(x - 0.5x)^2}

Y = \frac{k}{(0.5x)^2}

Y = \frac{k}{0.25x^2}

Expand

Y = \frac{1}{0.25} * \frac{k}{x^2}

Substitute \frac{k}{x^2} for y

Y = \frac{1}{0.25} * y

Y = 4 * y

Y = 4 y

The percentage change is then calculated as:

\%Change = \frac{Y - y}{y} * 100\%

\%Change = \frac{4y - y}{y} * 100\%

\%Change = \frac{3y}{y} * 100\%

\%Change = 3 * 100\%

\%Change = 300\%

<em>The percentage in y is 300%</em>

7 0
3 years ago
Change fractions to mixed numbers
Alja [10]
A-9 2/3 B-3 3/8 C-5 D-4 1/5
4 0
3 years ago
Read 2 more answers
The wholesale price for a dozen pairs of socks is $4.30. The retail price for the same dozen pairs of socks is $9.25. What is th
Mandarinka [93]

Answer:

the mark up used by the retailer is 115.12% of the wholesale price

Step-by-step explanation:

Mark-up is the percentage increase of the retail price over the wholesale price

Mark-up = (difference between retail and whole sale price / retail price ) x 100

difference between retail and whole sale price = $9.25 - $4.30 = $4.95

(4.95 / 4.3) x 100 = 115.12%.

5 0
2 years ago
Other questions:
  • What is 7x+5=5x+17
    12·1 answer
  • (5 - 3i) + (6 + 5i)
    9·2 answers
  • How to write 6,792,365 in expanded form
    9·2 answers
  • A box of a dozen fruit tarts costs 15.00. what is the cost of the one fruit tart
    13·2 answers
  • Pleasssseeeee hhhheeeellllppppp
    12·2 answers
  • X = {1,3,5,7)<br> Y = {13,57}<br> Which of the following is the set XnY?
    11·1 answer
  • Complete the table of values for the function f(x) = (1/3)x for a, b, and c. x : -2, -1, 0, 1, 2. f(x) : a, b, c, 1/3, 1/9
    5·2 answers
  • Does anyone know this?!<br> the answers are <br> a- 0.12 <br> b- 0.32<br> c-0.20<br> d.0.08
    7·1 answer
  • Alejandro will deposit $1,750 in an account that earns 6.5% simple interest every year. His sister Anallency will deposit $1,675
    10·2 answers
  • P l e a s e h e l p~!!!!!!~!!~~~!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!