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2 years ago

What is the value of the function f(x)=1/4x-3 when x = 12?

Mathematics

1 answer:

elena55 [62]2 years ago

7 0

F(x) = 1/4x -3 = 1/4*12-3

= 1/45

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8 squared plus 9 left parenthesis 12 divided by 3 times 2 right parenthesis minus 7. Explain each of your steps.

vekshin1

Answer:

129

Step-by-step explanation:

PEMDAS (parenthesis, exponents, multiplication / division, addition /subtraction.) I will use these as abbreviations.

8^2 + 9 (12/3*2) - 7

P: Start with P, and inside P go left to right with M/D

D: 8^2 + 9 (4*2) - 7

M: 8^2 + 9 (8) - 7

E: The next step is E, so I will do 8^2

64 + 9 (8) - 7

M/D: I will then multiply from left to right

64 + 72 - 7

A/S: Finall I will add and subtract from left to right.

A: 136 - 7

S: 129

4 0

2 years ago

Which property is used to simplify the expression 5(3x +18) to 15x+90

klio [65]

Answer:

Distributive Property

Step-by-step explanation:

7 0

2 years ago

What is the range of the function f(x) = 4x + 9, given the domain D = {-4, -2, 0, 2)?

Lera25 [3.4K]

Correct answer is D. R={1,7,9,17)

8 0

2 years ago

How do you do this. Please give a full answer and explain why.

OverLord2011 [107]

Law of Exponent

$\displaystyle \large{ {a}^{ - n} = \frac{1}{ {a}^{n} } }$

Compare the terms.

$\displaystyle \large{ {a}^{ - n} = {( - 2)}^{ - 3} }$

Therefore, a = -2 and n = 3. From the law of exponent above, we receive:

$\displaystyle \large{ {( - 2)}^{ - 3} = \frac{1}{ {( - 2)}^{ 3} } }$

Exponent Def. (For cubic)

$\displaystyle \large{ {a}^{3} = a \times a \times a }$

Factor (-2)^3 out.

$\displaystyle \large{ {( - 2)}^{ - 3} = \frac{1}{( - 2) \times ( - 2) \times ( - 2)}}$

(-2) • (-2) = 4 | Negative × Negative = Positive.

$\displaystyle \large{ {( - 2)}^{ - 3} = \frac{1}{4 \times ( - 2)}}$

4 • (-2) = -8 | Negative Multiply Positive = Negative.

$\displaystyle \large{ {( - 2)}^{ - 3} = \frac{1}{ - 8}}$

If either denominator or numerator is in negative, it is the best to write in the middle or between numerator and denominators.

Hence,

$\displaystyle \large \boxed{ {( - 2)}^{ - 3} = - \frac{1}{ 8}}$

The answer is - 1 / 8

3 0

2 years ago

You deposit 700 in an account with an annual interest rate of 4%

nadezda [96]

Answer:

Step-by-step explanation:

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2 years ago