Math is a subject that many students struggle with and it can be difficult to understand the concepts without a proper review. One way to review math concepts is to work through a series of questions. This article will provide the answers for the weekly math review questions for Q1 5.

## Question 1: What is the area of a triangle with a base of 12 and a height of 8?

The area of a triangle is equal to one-half of the base multiplied by the height. Therefore, the area of this triangle is 48 square units, or 48 sq. u.

## Question 2: What is the equation of a line with a slope of -3 and a y-intercept of 8?

The equation of a line can be written in slope-intercept form as y = mx + b, where m is the slope and b is the y-intercept. Therefore, the equation of a line with a slope of -3 and a y-intercept of 8 is y = -3x + 8.

## Question 3: What is the volume of a cube with sides of 5?

The volume of a cube is equal to the length of one side cubed. Therefore, the volume of a cube with sides of 5 is 5^3, or 125 cubic units.

## Question 4: What is the value of cos(120)?

The value of cos(120) is -0.5. This can be determined by using the cosine formula cos(θ) = x / r, where θ is the angle in radians, x is the x-coordinate, and r is the radius. Therefore, cos(120) = -0.5.

## Question 5: What is the perimeter of a rectangle with a length of 8 and a width of 4?

The perimeter of a rectangle is equal to the sum of all its sides. Therefore, the perimeter of a rectangle with a length of 8 and a width of 4 is 8 + 8 + 4 + 4, or 24 units.

Math can be difficult to understand without practice and review. This article provided the answers to the weekly math review questions for Q1 5. The answers to these questions can help students review and better understand math concepts.

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