Sam's Science Fair Quiz

Reviewed by Editorial Team
The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.
Learn about Our Editorial Process
| By Sammmbam
S
Sammmbam
Community Contributor
Quizzes Created: 1 | Total Attempts: 63
| Attempts: 63
Quiz Flashcard
SettingsSettings
Please wait...
  • 1/15 Questions
    - ProProfs

    • Only I
    • Only II
    • Only III
    • I, II, and III
Please wait...
About This Quiz


These results will be used in my project determining whether or not playing an instrument has an effect on math scores.
1. NO calculators or any other aid are allowed on this quiz. (you may use a sheet of paper to work out your problems on. )
2. Take as much time as you need.
3. Do your best! I'm not going to judge you if you don't know the answers. (:
4. Your identity will remain anonymous in the project. However, please tell me your grade level and whether or not you play an instrument.
5. Place spaces between terms. (i. E. 5 + 4 = 9 NOT 5+4=9 ) This is vital for your scoring!
6. Use carats (^) for powers. (i. E. X squared is x^2, x cubed is x^3, etc. )
7. Put fractions in parentheses. (i. E. Three-fourths is (3/4) NOT 3/4. )
8. Please remember that this quiz is voluntary. You may quit at any time.
Thank you so much for your time!

Sams Science Fair Quiz - Quiz

Quiz Preview

  • 2. 

    Jack has a garden with 20 rows of pepper plants. Ten of the rows have 55 plants each, and there are 1200 plants total. How many plants are in each of the other ten rows? (Assume that there are equal amounts of plants in each.)

    Explanation
    The total number of plants in the garden is given as 1200. Ten rows have 55 plants each, which means there are a total of 10 * 55 = 550 plants in these rows. To find the number of plants in each of the other ten rows, we subtract the number of plants in the first ten rows from the total number of plants: 1200 - 550 = 650. Therefore, each of the other ten rows must have 650/10 = 65 plants.

    Rate this question:

  • 3. 

    Evaluate. 43/2

    Explanation
    The expression 43/2 can be evaluated by dividing 43 by 2, which equals 21.5. However, since the answer options are whole numbers, we need to round down to the nearest whole number, which is 21. Therefore, the correct answer is 8.

    Rate this question:

  • 4. 
    - ProProfs

  • 5. 

    The grocery store has apples that sell for $1.75 per pound and pears that sell for $2.45 per pound. Write a linear equation that represents how much of each type of fruit can be bought with $25.

    Explanation
    The equation 1.75x + 2.45y = 25 represents the total cost of buying x pounds of apples and y pounds of pears. The coefficient 1.75 represents the cost per pound of apples, and the coefficient 2.45 represents the cost per pound of pears. The sum of the costs of the two types of fruit should equal $25, which is represented by the constant term on the right side of the equation. Therefore, this equation accurately represents the relationship between the amount of each type of fruit that can be bought with $25.

    Rate this question:

  • 6. 

    Find the equation given the zeros:x = 4 + 3ix = 4 - 3i

    Explanation
    The given equation has the zeros x = 4 + 3i and x = 4 - 3i. Since complex zeros occur in conjugate pairs, we can write the factors of the equation as (x - (4 + 3i))(x - (4 - 3i)). Simplifying this expression gives us (x - 4 - 3i)(x - 4 + 3i). Expanding the expression further, we get x^2 - 8x + 25. Therefore, the equation is x^2 - 8x + 25 = 0.

    Rate this question:

  • 7. 
    Write any remainder as a fraction. - ProProfs

    Write any remainder as a fraction.

    Explanation
    The given expression is x^2 - x + 2 - (2/3x + 1). To simplify the expression, we need to distribute the negative sign to each term inside the parentheses. Thus, the expression becomes x^2 - x + 2 - 2/3x - 1. We can combine like terms by combining the x terms and the constant terms. Therefore, the simplified expression is x^2 - (4/3)x + 1.

    Rate this question:

  • 8. 
    - ProProfs

  • 9. 
    The bottom-left number is 110. The number on the mid-right is 120. - ProProfs

    The bottom-left number is 110. The number on the mid-right is 120.

  • 10. 

    Solve the system of equations.3x - 5y = 4-2x + 4y = 3

    Explanation
    The answer (15.5, 8.5) is the solution to the given system of equations. This means that when we substitute x = 15.5 and y = 8.5 into both equations, we get true statements. The parentheses and commas are used to separate the x and y values, and they are repeated three times to indicate that (15.5, 8.5) is the correct answer.

    Rate this question:

  • 11. 

    Evaluate f(3x + 2) when f(x) = x2 + 5.

    Explanation
    The given question asks us to evaluate the function f(3x + 2) when f(x) = x^2 + 5. To do this, we substitute 3x + 2 into the function in place of x. So, f(3x + 2) = (3x + 2)^2 + 5. Expanding this expression gives us 9x^2 + 12x + 4 + 5, which simplifies to 9x^2 + 12x + 9. Therefore, the correct answer is 9x^2 + 12x + 9.

    Rate this question:

  • 12. 
    - ProProfs

  • 13. 

    Factor completely.x3 + 5x2 - 4x - 20

    Explanation
    The given expression, x^3 + 5x^2 - 4x - 20, can be factored completely as (x + 2)(x - 2)(x + 5) or (x - 2)(x + 2)(x + 5). Both of these factorizations are equivalent and represent the complete factorization of the given expression.

    Rate this question:

  • 14. 

    Evaluate: log2(1/32)

    Explanation
    The expression log2(1/32) can be rewritten as log2(2^-5), since 1/32 is equal to 2^-5. Using the property of logarithms, logb(b^x) = x, we can simplify the expression to -5. Therefore, the correct answer is -5.

    Rate this question:

  • 15. 

    How would this equation look when graphed?(x - 3)2 + (y + 4)2 = 16

    • A line with a slope of (-3/4) and y-intercept at 16

    • A line with a slope of 16 intersecting the point (-3, 4)

    • A parabola with a vertex of (-3, 4)

    • A circle with a center at (3, -4) and radius of 4

    • A circle with a center at (-3, 4) and a radius of 4

    Correct Answer
    A. A circle with a center at (3, -4) and radius of 4
    Explanation
    The equation (x - 3)2 + (y + 4)2 = 16 represents a circle in the coordinate plane. The center of the circle is given by the point (3, -4) and the radius is 4 units. This means that all the points on the graph of this equation are equidistant from the center (3, -4) and the distance is always 4 units. Therefore, the correct answer is "A circle with a center at (3, -4) and a radius of 4."

    Rate this question:

Quiz Review Timeline (Updated): Apr 28, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Apr 28, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 27, 2009
    Quiz Created by
    Sammmbam

Popular Topics

+ Show more
Back to Top Back to top
Advertisement
×

Wait!
Here's an interesting quiz for you.

We have other quizzes matching your interest.