PHSI191-2-revision2

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What is the cosine of a right triangle in terms of its sides?

Opposite / Hypotenuse

Adjacent / Hypotenuse

Hypotenuse / Adjacent

Opposite / Adjacent

None

What is the result when multiplying (-2 x -5)?

-10

-7

None

Which of the following correctly simplifies 5x - 3x + 4x?

12x

None

What is the value of 2^-3?

1/4

0.24

1/8

None

In an equation, what is the correct way to solve for an unknown variable when it appears on both sides of the equation?

Change the variable to a different letter

Multiply both sides by zero

Subtract or add terms to isolate the variable on one side

Move the variable to one side by changing its sign

None

If the base of a logarithm and the number inside the logarithm are the same, what is the result?

Undefined

The base itself

One

Zero

None

Which of the following describes the radian measure of an angle?

The number of degrees in a full circle

A fraction of the circle’s total area

A measurement used only in trigonometry

The angle subtended by an arc whose length equals the radius of the circle

None

What happens when a negative number is squared?

The result remains the same

The result is positive

The result is negative

The result is zero

None

What is the correct way to subtract fractions with different denominators?

Subtract the numerators and keep the same denominator

Multiply the denominators and then subtract

Convert to a common denominator and subtract the numerators

Find a common denominator

None

10.

Which of the following represents the correct way to divide fractions?

Subtract the numerators and multiply the denominators

Flip the second fraction and multiply by 2.5

Multiply the first fraction by the reciprocal of the second

Multiply the numerators and subtract the denominators

None

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