ASVAB Math Knowledge Quiz
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Questions and Answers

Which of the following is the smallest prime number greater than 100?

  • 103
  • 101 (correct)
  • 107

If 40% is equal to the fraction X/30, what is the value of X?

  • 7
  • 12 (correct)
  • 25
  • 15

What is the result of subtracting -3X^2 - 5X + 1 from 8X^2 - 2X - 9?

  • -5X^2 - 7X + 8
  • 5X^2 - 7X - 8 (correct)
  • 5X^2 = 3X - 10
  • -5X^2 - 3X - 10

The expression "5 FACTORIAL" equals?

<p>120 (B)</p> Signup and view all the answers

Solve for X: 8X - 2 - 5X = 8

<p>3 1/3 (B)</p> Signup and view all the answers

The perimeter of a rectangle is 38 inches. If the length is 3 inches more than the width, find the width:

<p>8'' (B)</p> Signup and view all the answers

Find the square root of 85 correct to the nearest tenth:

<p>9.2 (C)</p> Signup and view all the answers

What is the product of (A - 5) and (A + 3)?

<p>A^2 - 2A - 15 (D)</p> Signup and view all the answers

If 5^11 = 5^2 x 5^m, what is the value of m?

<p>9 (D)</p> Signup and view all the answers

If one plant requires 2 liters of water each day, how many liters are required to water the plant for 13 days?

<p>26 liters (C)</p> Signup and view all the answers

You are told that one of the internal angles of a parallelogram is 25 degrees. This means at least one other angle must be equal to:

<p>25 (A)</p> Signup and view all the answers

What is the area of an isosceles right triangle that has one leg = 4 cm?

<p>8 cm (D)</p> Signup and view all the answers

25% of what number is 8?

<p>32 (C)</p> Signup and view all the answers

A rectangle is cut in half to create two squares that each have an area of 25. What is the perimeter of the original rectangle?

<p>30 (B)</p> Signup and view all the answers

A woman has Z dollars to spend. After she spends $500, how much money does she have left?

<p>Z - 500 (D)</p> Signup and view all the answers

Flashcards

Smallest prime number greater than 100

The smallest prime number greater than 100 is 101. A prime number is a whole number greater than 1 that is only divisible by 1 and itself.

Solving for X (40% = X/30)

To solve for X in the equation 40% = X/30, we can convert 40% to a fraction (40/100) and cross-multiply. This gives us 40 * 30 = 100 * X. Simplifying this equation, we get 1200 = 100X. Dividing both sides by 100 gives us X = 12.

Subtraction of Polynomial Expressions

Subtracting -3X^2 - 5X + 1 from 8X^2 - 2X - 9 involves changing the signs of each term in the expression being subtracted and then combining like terms. This results in 8X^2 - 2X - 9 + 3X^2 +5X - 1 = 11X^2 +3X - 10. However, the provided answer is incorrect. It should be 11X^2 + 3X -10.

5 factorial

5 factorial (5!) means 5 * 4 * 3 * 2 * 1, which equals 120.

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Solving for X (Equation with variables)

To solve for X in the equation 8X - 2 - 5X = 8, first combine like terms on the left side: 3X - 2 = 8. Then, add 2 to both sides to get 3X = 10. Finally, divide both sides by 3 to isolate X: X = 10/3 or 3 1/3.

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Perimeter of a rectangle

The perimeter of a rectangle is the total length of all its sides. It's calculated using the formula: Perimeter = 2 * (length + width). Let 'w' represent the width. The length is 3 inches more than the width, so it is 'w + 3'. We can write the equation as: 38 = 2 * (w + 3 + w). Simplifying the equation, we get 38 = 4w + 6. Subtracting 6 from both sides gives us 32 = 4w. Finally, dividing both sides by 4 gives us w = 8. Therefore, the width of the rectangle is 8 inches.

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Square Root

The square root of 85 is approximately 9.2. This means 9.2*9.2 is approximately equal to 85.

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Multiplying Binomials

To find the product of (A - 5) and (A + 3), we need to expand the expression using the distributive property (also known as FOIL). This means multiplying each term in the first expression by each term in the second expression. (A - 5) * (A + 3) = A*(A) + A*(3) + (-5)(A) + (-5)(3). Combining like terms, we get A^2 + 3A - 5A - 15 = A^2 - 2A - 15.

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Exponent rules

The equation 5^11 = 5^2 x 5^m uses the rule of exponents that says a^m * a^n = a^(m+n). By applying this rule, we can rewrite the equation as 5^11 = 5^(2+m). Since the bases are equal, we equate the exponents, so 11 = 2 + m. Subtracting 2 from both sides gives us m = 9.

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Water Requirement Calculation

If one plant needs 2 liters of water per day, over 13 days it will need 2 * 13 = 26 liters of water.

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Angles in a parallelogram

In a parallelogram, opposite angles are equal. Therefore, if one angle is 25 degrees, the angle opposite to it must also be 25 degrees.

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Area of an isosceles right triangle

The area of a right triangle is calculated as (1/2) * base * height. In an isosceles right triangle, the two legs are equal. So, the base and height are both 4 cm. Area = (1/2) * 4 cm * 4 cm = 8 cm^2.

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Finding the original number

To find the number that 25% represents, we can set up a proportion: 25/100 = 8/x. Cross-multiplying, we get 25x = 800. Dividing both sides by 25, we find x = 32.

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Area and perimeter of squares and rectangles

The area of a square is calculated by sideside. Since the area of each square is 25, the side of each square is the square root of 25, which is 5. The original rectangle was composed of two of these squares. This means the length of the rectangle is 5 + 5 = 10, and the width is 5. Therefore, the perimeter of the original rectangle is 2(10+5) = 30.

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Money after spending

If a woman starts with Z dollars and spends $500, she is left with Z - 500 dollars.

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Study Notes

Prime Numbers

  • The smallest prime number greater than 100 is 101.

Fractions and Percentages

  • 40% of 30 equals 12, represented as the fraction X/30.

Algebraic Expressions

  • The result of subtracting the polynomial -3X^2 - 5X + 1 from 8X^2 - 2X - 9 is simplified to 5X^2 - 7X - 8.
  • The expression for 5 factorial (5!) computes to 120.

Linear Equations

  • In the equation 8x - 2 - 5x = 8, the solution for X is 3 1/3.

Geometry

  • For a rectangle with a perimeter of 38 inches and the length being 3 inches more than the width, the width is 8 inches.
  • The area of an isosceles right triangle with one leg measuring 4 cm is 8 cm².

Square Roots

  • The square root of 85, rounded to the nearest tenth, is 9.2.

Polynomials

  • The product of (A - 5) and (A + 3) expands to A² - 2A - 15.

Exponents

  • In the equation 5^11 = 5^2 x 5^m, the value of m is 9.

Units of Measurement

  • One plant requiring 2 liters of water daily needs a total of 26 liters for 13 days.

Angles in Geometry

  • In a parallelogram, if one internal angle is 25 degrees, at least one other angle must also be 25 degrees.

Percentages of Numbers

  • 25% of 32 equals 8.

Rectangles and Squares

  • A rectangle cut in half to form two squares with an area of 25 each results in an original rectangle perimeter of 30.

Financial Arithmetic

  • After spending $500, a woman with Z dollars remaining has Z - 500.

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Test your math knowledge with this ASVAB-focused quiz! The questions cover various math concepts, providing a great way to prepare for the ASVAB exam. Challenge yourself and enhance your math skills with each question.

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