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Juli2301 [7.4K]
3 years ago
9

Which expression is prime? A) x2 - 9 B) 1 - 9x2 C) 2a2 - 25 D) 4x2 - 9

Mathematics
1 answer:
tiny-mole [99]3 years ago
6 0
The answer would be c


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1.8 or 1 4/5 should be the answer!

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Write down the next one term in sequence :3;10;17;24;31​
Verdich [7]

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38

Step-by-step explanation:

you start by taking 10_3 24_17 then you will see difference is 7 then you will take 7+31=38

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1 year ago
Evaluate 6^2 + x - x^2 for x = 3
Thepotemich [5.8K]

Answer:

30

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
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Step-by-step explanation:

<u>Step 1: Define</u>

6² + x - x²

x = 3

<u>Step 2: Evaluate</u>

  1. Substitute:                    6² + 3 - (3)²
  2. Exponents:                   36 + 3 - 9
  3. Add:                              39 - 9
  4. Subtract:                       30
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3 years ago
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Write the equation the represents the following table​
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add 3 to 2 to get 5. then add 6 to 4 to get 10, etc.

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This morning, Tisha took a history test. There were 96 multiple-choice problems on the test and Tisha answered 25% of them corre
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Step One: Convert 25% to decimal form

All we have to do to convert 25% to decimal form is move the decimal point (which is assumed comes after the 5 in this case) two spaces to the left, which leaves us with 0.25.

Step Two: Find 25% of 96

To find a percentage of a number, we just have to multiply the percentage in decimal form by our number. Since we now know that 25% = 0.25, all we have to do is multiply 0.25 by 96. This gives us 25% of 96, which would be 24 correct problems.

3 0
2 years ago
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