Math Problem Statement

If f(x) = 3x-2 and g(x) = 5x - 1 then what is the value of (3)7 A. 16 B. 46 C 40 D. 15

Solution

It looks like you are asking for the value of (3)7(3)7, but the notation is unclear. If you mean f(3)×7f(3) \times 7, let’s calculate it step by step.

Given functions: f(x)=3x2f(x) = 3x - 2 g(x)=5x1g(x) = 5x - 1

Let's evaluate f(3)f(3):

f(3)=3(3)2=92=7f(3) = 3(3) - 2 = 9 - 2 = 7

Now multiplying by 7:

7×7=497 \times 7 = 49

Since 49 is not listed as an option, could you clarify what you mean by (3)7(3)7? Do you mean function composition, evaluation, or multiplication?

Here are some possible interpretations:

  1. f(3)×7f(3) \times 7
  2. g(3)×7g(3) \times 7
  3. f(7)f(7)
  4. g(7)g(7)
  5. f(g(3))f(g(3)) or g(f(3))g(f(3))

Let me know so I can provide the correct answer!

Tip: Always clarify the notation when working with functions to avoid ambiguity.

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Math Problem Analysis

Mathematical Concepts

Function Evaluation
Algebra

Formulas

f(x) = 3x - 2
g(x) = 5x - 1

Theorems

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Suitable Grade Level

Grades 7-9