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Pani-rosa [81]
3 years ago
12

Evaluate f(x) = x2 – 12 when x = 5

Mathematics
2 answers:
elena55 [62]3 years ago
7 0

Answer:

13

Step-by-step explanation:

replace the x with 5.

5^2-12=

25-12=13

Ede4ka [16]3 years ago
4 0

Answer:

f(5) = 13

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS

<u>Algebra I</u>

  • Function notation and substitution

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = x² - 12

x = 5

<u>Step 2: Evaluate</u>

  1. Substitute:                   f(5) = 5² - 12
  2. Exponents:                  f(5) = 25 - 12
  3. Subtract:                      f(5) = 13
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Step-by-step explanation:

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Input that into your calculator and our final answer will be 11.8 cubic inches.

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This car traveled 3 miles per 1 min. Tell me how far the car will travel at 6 mins. Use a table to show your work .
Dima020 [189]

Answer:

min | miles

———|———

1 | 3

2 | 6

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Step-by-step explanation:

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4 0
3 years ago
12 less than the quotient of a number and seven is -2 find the number
kiruha [24]
A quotient is the result of a division.
Let the unknown number be x.

We translate the problem into an equation, piece by piece.

<span>"quotient of a number and seven"  ---->   x/7
</span>
<span>"12 less than the quotient of a number and seven"  ---->    x/7 - 12

The word "is" means "="
x/7 - 12 =

All the above is -2, so it equals -2.

x/7 - 12 = -2

\dfrac{x}{7} - 12 = -2

First, add 12 to both sides and simplify.

</span><span>\dfrac{x}{7} - 12 + 12 = -2 + 12

</span>
<span><span><span>\dfrac{x}{7} = 10</span>
</span>
Next, multiply both sides by 7.

\dfrac{x}{7} \times 7 = 10 \times 7

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</span>
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Harman [31]
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if the diameter of a circle is given, simply divide the diameter by 2 to get the radius. 

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