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jarptica [38.1K]
3 years ago
12

Retail price= $120 markup percent= 40% what is the original cost

Mathematics
1 answer:
valina [46]3 years ago
8 0
I believe it would be 72
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In the following equation, f(x)=2x +7, what is f(-3)?
Helen [10]

Answer:

f(-3) = 1

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>

  • Function Notation

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = 2x + 7

f(-3) is x = -3

<u>Step 2: Evaluate</u>

  1. Substitute:                   f(-3) = 2(-3) + 7
  2. Multiply:                       f(-3) = -6 + 7
  3. Add:                             f(-3) = 1
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3 years ago
Square root of 700 to the nearest tenth
SpyIntel [72]
You could just use a calculator. Or, simply find the largest perfect square that is a factor of the number and then put the multiplier under a radical sign.
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4 years ago
Word problem multiplication equation
Tomtit [17]
What’s the equation ?
4 0
3 years ago
Find all solutions to the equation (sinx-cosx)^2=3
Karo-lina-s [1.5K]

Answer:

no solutions

Step-by-step explanation:

Simplify the equation (\sin x-\cos x)^2=3:

\sin^2 x-2\sin x\cos x+\cos ^2x=3,\\ \\ (\sin^2x+\cos^2x)-2\sin x\cos x=3.\\

Since

\sin^2 x+\cos^2 x=1

and

2\sin x\cos x=\sin 2x,

we have

1-\sin 2x=3,\\ \\\sin 2x=-2.

Since \sin 2x cannot be less than -1, this equation has no solutions.

6 0
4 years ago
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Simplify using appropriate identity 0.85 × 0.85 +2 × 0.85 ×0.15 × 0.15
spayn [35]

The answer is <u><em>0.76075</em></u>!

<em>Hope this helps!</em>

7 0
3 years ago
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