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
frozen [14]
3 years ago
7

Given that ƒ(x) = x² + 4x, evaluate ƒ(-2)

Mathematics
2 answers:
mafiozo [28]3 years ago
7 0
f(x)= x^{2} +4x \\ f(-2)= (-2)^{2} +4(-2) \\ =4-8 \\ =-4
Amiraneli [1.4K]3 years ago
3 0
F(-2)=(-2)2+4(-2)
4-8
-4
You might be interested in
Three times the sum of a number and seven is negative thirty-six. What is the number?
Katarina [22]

Answer:

n =-19

Step-by-step explanation:

3* (n+7) = -36

Distribute

3n+21 = -36

Subtract 21 from each side

3n+21-21 = -36-21

3n = -57

Divide by 3

3n/3 = -57/3

n =-19

7 0
3 years ago
Read 2 more answers
Robin made a cuboid of plasticine. Length, breadth, and height of the cuboid are
kaheart [24]

Answer:

75

Step-by-step explanation:

8 0
3 years ago
Help me please!Please look at the pic then tell me if im wrong on something.Thank you! :)
Murrr4er [49]

Answer: for every 3 triangles there are 5 squares. not 4. so the ratio is 3:5.

could you give me brainliest pls?

6 0
3 years ago
Expanding Logarithmic Expressions In Exercise, use the properties of logarithms to rewrite the expression as a sum, difference,
Leya [2.2K]

Answer:  \dfrac{1}{3}[\ln (x+1)+\ln(x-1)]

Step-by-step explanation:

Properties of logarithm :

  1. \log (ab)= \log a+\log b
  2. \log(\dfrac{a}{b})=\log a-\log b
  3. \log a^n= n\log a

The given expression in terms of Natural log : \ln (x^2 - 1)^{\frac{1}{3}}

This will become \dfrac{1}{3}\ln (x^2 - 1)      [ By using Property (3)]

=\dfrac{1}{3}\ln (x^2-1^2)

=\dfrac{1}{3}\ln ((x+1)(x-1))   [\because a^2-b^2=(a+b)(a-b)]

=\dfrac{1}{3}[\ln (x+1)+\ln(x-1)]   [ By using Property (1)]

Hence, the simplified expression becomes \dfrac{1}{3}[\ln (x+1)+\ln(x-1)] .

5 0
3 years ago
Y = x-1<br> Given x = 5<br> y =
Firdavs [7]
The answer would be 4 bc 5 minus 1 is 4. x = 4. y = 4.
3 0
3 years ago
Read 2 more answers
Other questions:
  • the sum of the reversed number and the original number is 154. Find the original number, if the ones digit in it is 2 less than
    14·1 answer
  • What is the value of tan A?
    8·1 answer
  • an outdoor deck is 7 feet wide the perimeter of the deck is 64 feet what is the length of the deck use the numbers to write an e
    11·1 answer
  • Expand and simplify 4 (x-3)-2 (1-x)
    8·2 answers
  • Hya think of a number "m" . She square it, add "y" to the answer and then subtract 7 from it. The final answer is "A". 1) Derive
    11·1 answer
  • Help needed!!! Will give 20 points!!!
    11·1 answer
  • Solve the inequality. Graph the solution set and write it in interval notation. .
    8·1 answer
  • HEY CAN ANYONE PLS ANSWER DIS MATH QUESTION RQ!!!!!!!!
    12·1 answer
  • If EFGH is a parallelogram, what is the value of x?
    12·1 answer
  • The large rectangle below represents one whole.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!