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2 years ago

F(x) = x2 What is f(x) + f(x) + f(x)?

Mathematics

1 answer:

DaniilM [7]2 years ago

4 0

Answer:

3x²

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Terms/Coefficients
Functions
Function Notation

Step-by-step explanation:

Step 1: Define

[Given] f(x) = x²

[Solve] f(x) + f(x) + f(x)

Step 2: Find

Combine like terms: 3f(x)
Substitute in function: 3(x²)
Multiply: 3x²

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Need help with my homework

Volgvan

Answer:

$\displaystyle y=\frac{16-9x^3}{2x^3 - 3}$

$\displaystyle y=-\frac{56}{13}$

Step-by-step explanation:

Equation Solving

We are given the equation:

$\displaystyle x=\sqrt[3]{\frac{3y+16}{2y+9}}$

To make y as a subject, we need to isolate y, that is, leaving it alone in the left side of the equation, and an expression with no y's to the right side.

We have to make it in steps like follows.

Cube both sides:

$\displaystyle x^3=\left(\sqrt[3]{\frac{3y+16}{2y+9}}\right)^3$

Simplify the radical with the cube:

$\displaystyle x^3=\frac{3y+16}{2y+9}$

Multiply by 2y+9

$\displaystyle x^3(2y+9)=\frac{3y+16}{2y+9}(2y+9)$

Simplify:

$\displaystyle x^3(2y+9)=3y+16$

Operate the parentheses:

$\displaystyle x^3(2y)+x^3(9)=3y+16$

$\displaystyle 2x^3y+9x^3=3y+16$

Subtract 3y and $9x^3$ :

$\displaystyle 2x^3y - 3y=16-9x^3$

Factor y out of the left side:

$\displaystyle y(2x^3 - 3)=16-9x^3$

Divide by $2x^3 - 3$ :

$\mathbf{\displaystyle y=\frac{16-9x^3}{2x^3 - 3}}$

ii) To find y when x=2, substitute:

$\displaystyle y=\frac{16-9\cdot 2^3}{2\cdot 2^3 - 3}$

$\displaystyle y=\frac{16-9\cdot 8}{2\cdot 8 - 3}$

$\displaystyle y=\frac{16-72}{16- 3}$

$\displaystyle y=\frac{-56}{13}$

$\mathbf{\displaystyle y=-\frac{56}{13}}$

8 0

2 years ago

Which fraction is equivalent to 2 10

yawa3891 [41]

Answer:

Fraction Equivalent Fractions

1/5 2/10 4/20

2/5 4/10 8/20

3/5 6/10 12/20

4/5 8/10 16

Step-by-step explanation:

THIS IS ANSWER PLS MARK BRAINLIST

7 0

2 years ago

Hello it's mathhhhhh

yaroslaw [1]

Answer:

Step-by-step explanation:

4*6=24

3*4=12

24+12=36

8 0

2 years ago

Read 2 more answers

Answer below please i need it immediately

DIA [1.3K]

Answer:

sss

Step-by-step explanation:

i think because 3 sides are given

3 0

2 years ago

ABC Car Share Inc. offers car sharing for a $199 yearly fee plus $14/hr for the use of its car share. What equation models the t

Katarina [22]

Total cost equals the yearly fee price plus $14 times number of hours.

T= total cost
n= number of hours

Equation:
T= $199 + $14n

Hope this helps! :)

6 0

2 years ago

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