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
sergejj [24]
3 years ago
6

If f(x) = 5х – 7, what is f3)?

Mathematics
1 answer:
rewona [7]3 years ago
7 0

Answer:

8

Step-by-step explanation:

When a number is put in the parenthesises with x you substitute that number in every time you see x.

f(x)=5x-7

f(3)=5(3)-7

f(3)=15-7

f(3)=8

You might be interested in
When you are solving a system of equations by graphing, graph the lines and look for the point of __________________.
solmaris [256]
Intersection

Where the graph line matches with which column of graph...... take a line from that place to the axis to identify value on that point of intersection

Hope it helped !!
7 0
3 years ago
Read 2 more answers
What is 7x5+9(2x9)2+3(8+6)5-=___?
Ne4ueva [31]
Using order of operations, the answer is 569.
6 0
3 years ago
Read 2 more answers
How many solutions does this equation have?
kozerog [31]

Hello from MrBillDoesMath!


Answer: infinite solutions


Discussion: I did a double take on this one but  the left hand is

a + 3 + 2a =  3a +3

and the right hand side is

-1 + 3a + 4 = 3a + (4-1) = 3a + 3


The left and right sides of the equation are identical for all "a", i.e. for infinitely many "a" values.


Regards, MrB.







5 0
3 years ago
Read 2 more answers
Sam is saving money to buy himself a new phone. He currently has $95. He is able to save about $20 a week. Let represent how muc
Sunny_sXe [5.5K]

Answer:

the correct answer is d

Step-by-step explanation:

w(s)=weeks saved and 20s is the gain of 20 dollars every week. and the 95 is the starting amount that sam had

4 0
2 years ago
Dave has 15$ to spend on an 8$ book and two birthday cards (cl for his friends. how much can he spend on each card if he buys th
vova2212 [387]
X=15

(X-8)/2

Does that work?
6 0
3 years ago
Other questions:
  • I am an odd number.
    14·2 answers
  • Celina and Zoe both sing in a band.
    15·1 answer
  • Bryan was given the equation y= -5x+3. He says the rate of change is 3 and the initial value is -5. Is Bryan correct? If not, co
    5·1 answer
  • A one-tailed hypothesis test with the t statistic Antisocial personality disorder (ASPD) is characterized by deceitfulness, reck
    7·1 answer
  • there are two triangles one has a base of 8 cm and a height of 10 cm the other has a base of 5 cm and a height of 13 cm which tr
    15·2 answers
  • For the function G defined by G(x)=5x+3, find G(r+5).
    14·2 answers
  • What is 1.53 to the nearest tenth
    5·2 answers
  • Help please help please help please
    13·2 answers
  • Ms. Placencio weighed 153 pounds in 2018. She now weighs 132 pounds. What is the percent change round to the nearest tenths plac
    10·1 answer
  • Helpp!! ill give brainliest! just explain a little at least
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!