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
Nitella [24]
3 years ago
9

Find the value of  x so that f(x)=7

Mathematics
1 answer:
Lesechka [4]3 years ago
6 0
Check:   Is  f(8) = 7    ?       2(8) - 9 = 7   ?        16 - 9 = 7   ?            7 = 7   ?yes
You might be interested in
I NEED HELP ASAP!! I WILL GIVE YOU BRAINLIEST!!
pentagon [3]

Answer:

D.

Step-by-step explanation:

x is divided by 2 each time for its y.

6 0
3 years ago
Read 2 more answers
Can you explain to me how to find this ? Thank you !
Zepler [3.9K]

Step-by-step explanation:

with the use of Pythagoras theorem you can find each side of one triangle

I hope this helps!

5 0
3 years ago
Read 2 more answers
Rewrite the equation by completing the square.
dlinn [17]

Answer:

(x + 1/2)^2 =  289/4

Step-by-step explanation:

x^2+x-72=0

Write like this:

(x + ___)^2 = ___

put 72 on other side

x^2 + x  = 72

x^ + x  + (1/4) = 72  + (1/4)

(x + 1/2)^2 =  289/4

x + (1/2) =  17/2

8 0
3 years ago
Can someone please help me
faust18 [17]

Answer:

never

Step-by-step explanation:

smith will run out by week 2

8 0
3 years ago
Read 2 more answers
There are 18 gallons of gas in a car at the
GREYUIT [131]

Answer:

18/2.5 = 7.2

Step-by-step explanation:

Since there are 18 gallons at the beginning of the trip you divide by 2.5 to find out how much gas is left after each hour.

7 0
2 years ago
Other questions:
  • A necklace costs £900. Work out the price after a 2% price increase.
    14·2 answers
  • A beach ball a radius 15 centimeters what is the volume of the beach ball?
    15·2 answers
  • Stuffed animals each weighing 1/4 pound are on a scale.the scale shows 1-1/2 pounds how many stuffed animals are on the scale?
    9·2 answers
  • 96 POINTS!!!! PLEASE HELP!
    9·2 answers
  • 88 students for 4 classes<br> what is the unit rate?
    11·2 answers
  • The perimeter of an equilateral triangle is 18p - 24. Write an expression to represent the length of each side.
    5·1 answer
  • X- (-8) = -15 help me​
    7·2 answers
  • In 1987, a survey of 1000 young people found that 540 said they smoked cigarettes, whilst
    5·1 answer
  • What is the minimum value of "f(x)=7(x-8)^2+5" ?
    7·1 answer
  • Lexi earns the same amount of money, x, every time she mows the lawn. In June, Lexi had to spend 5 dollars of her earnings on fu
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!