Quiz about Unit 1 Review 23_24

Question 1

Which expression is equivalent to $$15x^2+18x$$ ?

Accepted Answer

$$3x\left(5x+6\right)$$

Answer

$$3\left(6x^2+5x\right)$$

Answer

$$x\left(15x+18\right)$$

Answer

$$5x-6$$

Question 2

Sam is building the framework for an entryway window for a house under construction. The window is in the shape of a right triangle.

* The height of the window is represented by the expression 3x-8 feet.

*To allow for the maximum amount of light in the entryway, the area of the window is represented by the expression 15x-40 square feet.

Accepted Answer

10 feet

Answer

6 feet

Answer

10 inches

Answer

5 feet

Question 3

A road sign has dimensions represented by the expressions below.

Side 1: $$2x+3$$

Side 2: $$3x^2+6x$$

Side 3: Same as 1

Side 4: Same as 2

Accepted Answer

$$6x^2+16x+6$$

Answer

$$3x^2+8x+3$$

Answer

$$6x^2+12x+6$$

Answer

$$3x^2+16x+6$$

Question 4

The formula for Interest is I=prt. Which shows the formula correctly solved for t.

Accepted Answer

$$t=\frac{I}{pr}$$

Answer

$$t=\frac{Ip}{r}$$

Answer

$$t=Ipr$$

Answer

$$t=\frac{pr}{I}$$

Question 5

Solve for the variable. $$5\left(n+3\right)-6=4\left(n-2\right)$$

Accepted Answer

n = -17

Answer

n = 18

Answer

n = -12

Answer

n = 14

Question 6

Solve for the variable. $$7m-5=2m+10$$

Accepted Answer

m = 3

Answer

m = 2

Answer

m = 5

Answer

m = 1

Question 7

Solve the linear inequality. $$45+9x\ge50+3x$$

Accepted Answer

$$x\ge\frac{5}{6}$$

Answer

$$x\ge\frac{6}{5}$$

Answer

$$x>\frac{6}{5}$$

Answer

$$x\le\frac{5}{6}$$

Question 8

The measure of an acute angle is represented by $$\left(12x\ +8\right)\degree$$ . Which is not a possible value for X?

Accepted Answer

X = 7

Answer

X = 5

Answer

X = 6

Answer

X = 3

Question 9

The perimeter of a rectangle is 80 centimeters. The length of the rectangle can be represented by $$\left(2x+6\right)$$ , and its width can be represented by $$\left(3x+4\right)$$ . What are the dimensions of this rectangle in centimeters?

Accepted Answer

Length: 18 cm, Width: 22 cm

Answer

Length: 24 cm, Width: 15 cm

Answer

Length: 30 cm, Width: 10 cm

Answer

Length: 22 cm, Width: 18 cm

Question 10

An equation is shown. $$9x-4x+8\ =\ 6x+13$$

What is the value of X that makes the equation true?

Accepted Answer

-5

Answer

1

Answer

-2

Answer

3

Question 11

Which inequality describes all the solutions to $$7\left(2-x\right)<-4x+8$$

Accepted Answer

$$x>2$$

Answer

$$x\le-3$$

Answer

$$x\ge3$$

Answer

$$x<2$$

Unit 1 Review 23_24

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