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Solnce55 [7]
3 years ago
14

F(-14) if f(x) = 2x - 3 Help!

Mathematics
1 answer:
dusya [7]3 years ago
6 0

Answer:

f(-14) = -31

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

Functions

  • Function Notation

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify.</em>

f(x) = 2x - 3

<u>Step 2: Evaluate</u>

  1. Substitute in <em>x</em> [Function f(x)]:                                                                          f(-14) = 2(-14) - 3
  2. Simplify [Order of Operations]:                                                                        f(-14) = -31
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it is as simple as that

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5 minus the product of 2 and a number is 7 as a equation
mrs_skeptik [129]

Answer:

2x - 5 = 7

Step-by-step explanation:

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4 years ago
the half-life of strontium-90 is approximately 29 years. how much of a 500 g sample of strontium-90 will remain after 58 years​
Yuliya22 [10]

Answer:  125 g

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

A = P_o\cdot e^{kt}\\\\\text{First, use the given information to find k:}\\\\\bullet A=\dfrac{1}{2}P_o\\\\\bullet k = unknown\\\\\bullet t=29\text{ years}\\\\\dfrac{1}{2}P_o=P_o\cdot e^{k(29)}\\\\\\\dfrac{1}{2}=e^{k(29)}\qquad divided\ both\ sides\ by\ P_o\\\\\\ln\bigg(\dfrac{1}{2}\bigg)=ln\bigg(e^{k(29)}\bigg)\qquad applied\ ln\ to\ both\ sides\\\\\\ln\bigg(\dfrac{1}{2}\bigg)=29k\qquad simplified-ln\ and\ e\ cancel\ out\\\\\\\dfrac{ln\bigg(\dfrac{1}{2}\bigg)}{29}=k\qquad divided\ 29\ from\ both\ sides\\\\\\-0.0239=k

\text{Now, use the following in the equation to solve for A:}\\\\\bullet A=unknown\\\bullet P_o=500\\\bullet k=-0.0239\\\bullet t=58\text{ years}\\\\A=500\cdot e^{(-0.0239)(58)}\\\\.\quad=500\cdot e^{-1.386}\\\\.\quad=125

8 0
4 years ago
Which statement is true about figures ABCD and A'B'C'D?
Anika [276]

Answer:

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Coordinates of B → (3, 0)

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By this rule, coordinates of B'' will be,

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Now we translate the point B by 2 units right.

Rule for the translation is,

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Following this rule,

B''(-3, 0) → B'[(-3+2), 0]

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5 0
3 years ago
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GrogVix [38]

Answer:

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Step-by-step explanation:

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Replace x in the first equation.

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Now replace y in any of the equations to find x.

x=y+6x=-8+6\\x=-2

6 0
3 years ago
Read 2 more answers
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