Quiz about 8th Final eval

Question 1

Inverse operations are two operation which are exactly opposite to each other.

Accepted Answer

True

Answer

False

Question 2

Which of the following is equivalent to the shown equation?

Accepted Answer

$$-b=1-10$$

Answer

$$b=1+10$$

Answer

$$-b=40-10+41$$

Question 3

What is the correct way to isolate the shown equation?

Accepted Answer

$$x=\frac{38}{2}$$

Answer

$$x=\frac{38}{-2}$$

Answer

$$x=38-2$$

Answer

$$x=38+2$$

Question 4

A function has two different variables. The input is known as the independent variable and the output as the dependent variable

Accepted Answer

True

Answer

False

Question 5

Given the function $$f\left(x\right)=3x-2$$ , find $$f\left(2\right)$$

Accepted Answer

4

Answer

2

Answer

8

Answer

6

Question 6

An inverse function reverses the process made by another function.

Accepted Answer

True

Answer

False

Question 7

If $$f\left(x\right)=2x+4$$ then, its inverse function is

Accepted Answer

$$f^{-1}\left(y\right)=\frac{y-4}{2}$$

Answer

$$f^{-1}\left(y\right)=\frac{y+4}{2}$$

Answer

$$f^{-1}\left(y\right)=\frac{y}{2}-4$$

Answer

$$f^{-1}\left(y\right)=\frac{y}{2}+4$$

Question 8

If $$f\left(3\right)=5$$ , then $$f^{-1}\left(5\right)=$$

Accepted Answer

3

Answer

5

Answer

Cannot tell

Question 9

Select the triangle in which you can apply the trigonometric functions

Accepted Answer

Question 10

The Hypotenuse of a right triangle is always the vertical side of the triangle

Accepted Answer

False

Answer

True

Question 11

The opposite side to the angle B in the shown triangle has a length of

Accepted Answer

5 units

Answer

12 units

Answer

13 units

Question 12

The Cosine function of the angle in a right triangle is defined as

Accepted Answer

Adjacent/ Hypotenuse

Answer

Opposite/Adjacent

Answer

Adjacent/Opposite

Answer

Opposite/Hypotenuse

Question 13

The $$\sin\left(A\right)=\frac{50}{48}$$

Accepted Answer

False

Answer

True

Question 14

The tangent of the angle C of the shown triangle is

Accepted Answer

$$\frac{28}{21}$$

Answer

$$\frac{21}{28}$$

Answer

$$\frac{21}{35}$$

Answer

$$\frac{28}{35}$$

8th Final eval

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