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
Fofino [41]
3 years ago
10

F(x)=3 over x+2-x-3 squared what is f(7)

Mathematics
1 answer:
dimaraw [331]3 years ago
7 0

<u>Answer:</u>

f(7)=\frac{-5}{3} or f(7)=-1.67

<u>Step-by-step explanation:</u>

We are given the following function of x and we are to find the value of f ( 7 ):

f ( x ) = \frac { 3 } { x + 2 } - \sqrt { x - 3 }

Substituting the given value (7) in the above function to get:

f(x)=\frac{3}{x+2}-\sqrt{x-3}

f ( 7 )= \ frac{3}{7+2}-\sqrt{7-3}

f(7) = \frac { 3 } { 9 } - \sqrt { 4 }

f(7)=\frac{1}{3}-2

f(7)=\frac{1}{3}-\frac{6}{3}

f(7)=\frac{-5}{3} or f(7)=-1.67

You might be interested in
Evaluate the following expression. [4 + (12 - 2) ÷ 5] ÷ 7
Anika [276]

Answer:

[4 + (12 - 2) ÷ 5] ÷ 7

[4 + 6 / 5] / 7

[10 / 5] / 7

2 / 7

= 2/7 or 0.28571428571

7 0
2 years ago
Read 2 more answers
The elevation of a city is 2633 feet above sea level.
Free_Kalibri [48]

Answer:

+2633 ft

Step-by-step explanation:

The city is above sea level meaning it is a positive number.

5 0
2 years ago
What is the vertex for this function? y=2x2−12x+16
Scrat [10]

Answer:

(3,-2)

Step-by-step explanation:

Rewrite in vertex form and use this form to find the vertex

4 0
2 years ago
Which of the number(s) below are potential roots
Gnom [1K]

Answer:

+1 is the potential root of the function.

Step-by-step explanation:

Given;

p(x) = x⁴ + 22x⁴ – 16x - 12

A potential root of the function is zero of the function. That is a potential root will reduce the function to  zero or close to zero.

To determine this, we test each of the root given;

p(6) = (6)⁴ + 22(6)⁴ - 16(6) - 12 = 29700

p(3) = (3)⁴ + 22(3)⁴ - 16(3) - 12 = 1803

p(1) = (1)⁴ + 22(1)⁴ - 16(1) - 12 = -5

p(8) = (8)⁴ + 22(8)⁴ - 16(8) - 12 = 94068

The only number that reduces the function close to zero is +1, then +1 is the potential root of the function.

8 0
3 years ago
What is the y-coordinate of the solution for the system of equations?
8_murik_8 [283]
First equation is: x - y = 12
x = 12 + y

Now, substitute this in 2nd equation, 
2x - 3y = 27
2(12+y) - 3y = 27
24 + 2y - 3y = 27
-y = 27 - 24
y = -3

In short, Your Answer would be -3

Hope this helps!
5 0
3 years ago
Other questions:
  • Patrick is constructing the circumscribed circle for △RST.
    9·2 answers
  • A farmer has 20 acres to plant in wheat and barley. He has to plant at least 15 acres. Wheat costs $200 per acre to plant and ba
    15·1 answer
  • if there are 3 people at a party and each person have to give a handshake to each person at the party how many handshakes does i
    14·1 answer
  • What’s the 10th term in 1,4,6,10
    8·1 answer
  • The perimeter of a rectangle can be found using the formula P = 4s. True or False?
    5·2 answers
  • A spinner has 7 equal sections which are numbered from 1-7. Which of the following are complementary events? (check all that app
    7·2 answers
  • POINTS!!! PLS COME AND LOOK!!! I NEED YOU GENIUSES!!! I WILL GIVE BRAINLIEST!!!!! AT LEAST COME AND LOOK!!!! WILL FOREVER BE GRE
    6·1 answer
  • Simplify 3^8 x 3^4 / 3^2 x 3^8 leaving your answer in index form
    13·2 answers
  • Answer please I need help
    12·1 answer
  • A flower shop acquired 80 new customers last year. Costs in the marketing and sales areas were the following:
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!