Janaisa Harris, an experienced educator, has devoted 4 years to teaching high school math and 6 years to tutoring. She holds a bachelor's degree in Mathematics (Secondary Education, and Teaching) from the University of North Carolina at Greensboro and is currently employed at Wilson County School (NC) as a mathematics teacher.
, BA (Mathematics)
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Math and science have been closely related and science depends a lot more on some math. Some of the brightest students in the schools have perfect knowledge of math and science. If you consider yourself to be in that class of students then the test below is perfect to test how true that notion is. Try it out and share your results!
Questions and Answers
1.
What is radius?
A.
The distance from the center of a circle to any point on its circumference.
B.
The line segment connecting two points on the circumference of a circle.
C.
The ratio of a circle's circumference to its diameter.
D.
The perpendicular distance from a point on a circle to its center.
Correct Answer
A. The distance from the center of a circle to any point on its circumference.
Explanation The radius of a circle is the line segment that connects the center of the circle to any point on its circumference. It is essentially the distance from the center to the outer edge. This measurement is crucial in defining the size and proportions of a circle and is a fundamental component in various geometric calculations, such as determining the circle's area, circumference, and understanding relationships between different parts of the circle.
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2.
What is the key word of a gold element?
A.
At
B.
As
C.
Au
D.
H
E.
O
Correct Answer
C. Au
Explanation The key word for a gold element is "Au". This is because "Au" is the chemical symbol for gold on the periodic table.
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3.
What is a nucleus?
A.
The outermost shell of electrons.
B.
The region where electrons orbit the nucleus.
C.
The central, dense core containing protons and neutrons.
D.
A collection of positively charged particles.
Correct Answer
D. A collection of positively charged particles.
Explanation The nucleus is a group of protons and neutrons joined by a strong force. It is the central part of an atom and contains most of the atom's mass. The protons in the nucleus have a positive charge, while the neutrons have no charge. The nucleus is surrounded by electrons, which orbit around it in specific energy levels.
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4.
What is the limit of a constant over a variable as the variable approaches zero?
A.
Zero
B.
Infinity
C.
3.14
D.
The unknown
Correct Answer
B. Infinity
Explanation As the variable approaches zero, the value of the constant divided by the variable becomes larger and larger. Since there is no limit to how large a number can be, the limit of a constant over a variable as the variable approaches zero is infinity.
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5.
What is the diameter of a circle if the radius is 30?
Correct Answer 60
Explanation The diameter of a circle is twice the length of its radius. Since the radius is given as 30, the diameter would be 2 times 30, which equals 60.
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6.
What is the formula of a rectangle?
A.
L x w
B.
A+b+c
C.
S X s
D.
Pi r squared
Correct Answer
A. L x w
Explanation The formula for a rectangle is given by multiplying its length (l) by its width (w). Therefore, the correct answer is l x w.
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7.
What is the limit of a function as X approaches A? If A is equal to D, what happens if X mixes both symbols and subtracts the X to mix A and D?
A.
Zero
B.
Value of A squared
C.
Pi r sub 1 r sub 2
D.
SYNTAX ERROR
E.
Infinity
Correct Answer
D. SYNTAX ERROR
8.
What is a number?
A.
A symbol representing a quantity.
B.
A letter in the alphabet.
C.
A unit of measurement.
D.
A form of expression in poetry.
Correct Answer
A. A symbol representing a quantity.
Explanation A number is a mathematical concept and a symbol used to represent a quantity. It can be an integer (whole number), a fraction, a decimal, or even an irrational value like the square root of 2. Numbers are fundamental to mathematics and are used for counting, measuring, and expressing relationships between quantities. They play a crucial role in various mathematical operations such as addition, subtraction, multiplication, and division.
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9.
What is the radius of a circle with a diameter of 32 cm?
Correct Answer 16
Explanation The radius of a circle is half of its diameter. So, if the diameter is given as 32 cm, the radius (r) would be:
r= 32/2
r= 16
Therefore, the radius of the circle is 16 cm.
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10.
What happens when you subtract a larger number from a smaller number?
A.
The result is positive.
B.
The result is negative.
C.
The result is always zero.
D.
The operation is undefined.
Correct Answer
B. The result is negative.
Explanation When you subtract a larger number from a smaller number, the result is a negative number. The numerical difference between the smaller and larger numbers indicates the extent by which the smaller number falls short of the larger one. The negative sign signifies that the result is in the opposite direction or "below zero" on the number line.
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11.
What is 0.1 x 10?
A.
10
B.
0
C.
1
D.
0.1
Correct Answer
C. 1
Explanation When you multiply 0.1 by 10, you are essentially multiplying 0.1 by 10/1. The multiplication yields 1, as the numerator and denominator cancel each other out, leaving 1 as the final result.
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Janaisa Harris |BA (Mathematics)|
High School Math Teacher
Janaisa Harris, an experienced educator, has devoted 4 years to teaching high school math and 6 years to tutoring. She holds a bachelor's degree in Mathematics (Secondary Education, and Teaching) from the University of North Carolina at Greensboro and is currently employed at Wilson County School (NC) as a mathematics teacher.
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