Symbols And Variables Test! Quiz

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2) Transform the arithmetic expressions to their equivalent computer expression. F = q (E + v x B)

The correct answer is F=q*(E+v*B),F=(Q*(E+V*B)),F=Q*(E+V*B),F=(q*(E+v*B)). This is the correct transformation of the arithmetic expression F = q (E + v x B) into its equivalent computer expression. The expression is multiplied by q and the terms E and v*B are added together inside the parentheses. The variables q, E, v, and B are represented as they are in the original expression.

Explanation

The correct answer is F=q*(E+v*B),F=(Q*(E+V*B)),F=Q*(E+V*B),F=(q*(E+v*B)). This is the correct transformation of the arithmetic expression F = q (E + v x B) into its equivalent computer expression. The expression is multiplied by q and the terms E and v*B are added together inside the parentheses. The variables q, E, v, and B are represented as they are in the original expression.

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3) P1V1=P2V2 Create a formula using computer expression that would compute for the value of V1.

The formula V1 = ((P2 * V2) / P1) is the correct answer because it correctly represents the relationship between the initial pressure (P1), initial volume (V1), final pressure (P2), and final volume (V2) as stated in the equation P1V1 = P2V2. By rearranging the equation, we can solve for V1 by multiplying P2 and V2, and then dividing the result by P1. This formula allows us to calculate the initial volume (V1) when the other variables are known.

Explanation

The formula V1 = ((P2 * V2) / P1) is the correct answer because it correctly represents the relationship between the initial pressure (P1), initial volume (V1), final pressure (P2), and final volume (V2) as stated in the equation P1V1 = P2V2. By rearranging the equation, we can solve for V1 by multiplying P2 and V2, and then dividing the result by P1. This formula allows us to calculate the initial volume (V1) when the other variables are known.

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4) v = u + at Create a formula using computer expression that would compute for the value of u.

The formula u = v - (a*t) is the correct answer. It states that the initial velocity (u) is equal to the final velocity (v) minus the product of acceleration (a) and time (t). This formula is derived from the equation of motion v = u + at, where v is the final velocity, u is the initial velocity, a is the acceleration, and t is the time. By rearranging the equation, we can solve for u. Therefore, u = v - (a*t) is the correct formula to compute for the initial velocity.

Explanation

The formula u = v - (a*t) is the correct answer. It states that the initial velocity (u) is equal to the final velocity (v) minus the product of acceleration (a) and time (t). This formula is derived from the equation of motion v = u + at, where v is the final velocity, u is the initial velocity, a is the acceleration, and t is the time. By rearranging the equation, we can solve for u. Therefore, u = v - (a*t) is the correct formula to compute for the initial velocity.

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5)

Create a formula using computer expression that would compute for the value of H.

The correct answer is H=(3*R)/2. This formula calculates the value of H by multiplying the value of R by 3 and then dividing it by 2.

Explanation

The correct answer is H=(3*R)/2. This formula calculates the value of H by multiplying the value of R by 3 and then dividing it by 2.

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6) Solve the problem statements : Given: X=10; Y=20 ; Z=30; A=4; B=8; C=12 If A=B; B=C; C=X; what is the value of J if J=A+B+C?

The value of J can be determined by substituting the given values of A, B, and C into the equation J=A+B+C. Since A=B=C=X=30, the value of J is 30.

Explanation

The value of J can be determined by substituting the given values of A, B, and C into the equation J=A+B+C. Since A=B=C=X=30, the value of J is 30.

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7) Solve the problem statements : Given: X=10; Y=20 ; Z=30; A=4; B=8; C=12 If X=B; X=C what is the value of X?

The value of X is 12 because it is assigned the value of C, which is 12. Since X is also assigned the value of B, which is 8, the final value of X is the last assignment, which is 12.

Explanation

The value of X is 12 because it is assigned the value of C, which is 12. Since X is also assigned the value of B, which is 8, the final value of X is the last assignment, which is 12.

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8) Solve the problem statements : Given: X=10; Y=20 ; Z=30; A=4; B=8; C=12 If X=Z; A=X; B=Z what is the J if J=A-B?

The value of J is 0 because A is assigned the value of X which is 10, and B is assigned the value of Z which is also 10. Therefore, when we subtract B from A, we get 10 - 10 = 0.

Explanation

The value of J is 0 because A is assigned the value of X which is 10, and B is assigned the value of Z which is also 10. Therefore, when we subtract B from A, we get 10 - 10 = 0.

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9) Solve the problem statements : Given: X=10; Y=20 ; Z=30; A=4; B=8; C=12 If B=A; B=C what is the value of A and C? present your answer like this: (a,c)

The given statement B=A and B=C implies that A and C have the same value as B. Since B is equal to 8, the value of A and C would also be 8. Therefore, the correct answer is (8, 8).

Explanation

The given statement B=A and B=C implies that A and C have the same value as B. Since B is equal to 8, the value of A and C would also be 8. Therefore, the correct answer is (8, 8).

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10) Solve the problem statements : Given: X=10; Y=20 ; Z=30; A=4; B=8; C=12 If A=X; B=Y, what is the value of J if J=X+Y?

Since A is equal to X and B is equal to Y, we can substitute the values of X and Y into the equation J = X + Y. Therefore, J = 10 + 20 = 30.

Explanation

Since A is equal to X and B is equal to Y, we can substitute the values of X and Y into the equation J = X + Y. Therefore, J = 10 + 20 = 30.

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11) Pyramid area = b2h/3

The given formula for calculating the area of a pyramid is correct. It states that the area of a pyramid is equal to the base squared multiplied by the height, all divided by 3. This formula is derived from the general formula for the volume of a pyramid, which is (1/3) * base * height. Since the area of a pyramid is the base multiplied by the height, dividing by 3 gives us the correct formula for the area.

Explanation

The given formula for calculating the area of a pyramid is correct. It states that the area of a pyramid is equal to the base squared multiplied by the height, all divided by 3. This formula is derived from the general formula for the volume of a pyramid, which is (1/3) * base * height. Since the area of a pyramid is the base multiplied by the height, dividing by 3 gives us the correct formula for the area.

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12) A>B means that the value of B is greater than the value of A.

True

False

The given statement "A>B means that the value of B is greater than the value of A" is incorrect. In reality, the symbol ">" represents that the value of A is greater than the value of B. Therefore, the correct answer is False.

Explanation

The given statement "A>B means that the value of B is greater than the value of A" is incorrect. In reality, the symbol ">" represents that the value of A is greater than the value of B. Therefore, the correct answer is False.

13) What is a diagrammatic representation that illustrates the sequence of operations to be performed to get the solution of a problem?

Algorithm

Flowchart

Programming

Pseudocode

A flowchart is a diagrammatic representation that illustrates the sequence of operations to be performed to get the solution of a problem. It uses different shapes and arrows to represent different actions and decisions in a logical order. Flowcharts are commonly used in programming and problem-solving to visually depict the steps required to achieve a desired outcome. They provide a clear and concise overview of the process, making it easier to understand and follow the necessary steps.

Explanation

A flowchart is a diagrammatic representation that illustrates the sequence of operations to be performed to get the solution of a problem. It uses different shapes and arrows to represent different actions and decisions in a logical order. Flowcharts are commonly used in programming and problem-solving to visually depict the steps required to achieve a desired outcome. They provide a clear and concise overview of the process, making it easier to understand and follow the necessary steps.

14) Int1==int2 means that the value of variable int1 is equal to the value of variable int2.

True

False

The statement int1==int2 is a comparison statement that checks if the value of the variable int1 is equal to the value of the variable int2. If the values are indeed equal, the statement will evaluate to true. Therefore, the correct answer is true.

Explanation

The statement int1==int2 is a comparison statement that checks if the value of the variable int1 is equal to the value of the variable int2. If the values are indeed equal, the statement will evaluate to true. Therefore, the correct answer is true.

15) Solve the problem statements : Given: X=10; Y=20 ; Z=30; A=4; B=8; C=12 If A=Z; Z=B does the value of B is 8?

True

False

The given statement states that A is equal to Z and Z is equal to B. Since A is equal to Z and Z is equal to B, it implies that A is equal to B. Therefore, the value of B is indeed 8.

Explanation

The given statement states that A is equal to Z and Z is equal to B. Since A is equal to Z and Z is equal to B, it implies that A is equal to B. Therefore, the value of B is indeed 8.