Unit 7 SCA Review Quiz

Hint: Both are equal here

so x+6 = 2x+3 then solve for x

(a)  

Hint: Here 5x+30 = 90

Now solve for x

(a)  

Hint: Here 2(2x+7) = 3x+18

Now solve for x

(a)  

Hint: Here take $$\frac{20}{10\ }=\ \frac{50}{x}$$

Now solve for x

(a)  

Hint: $$\frac{y\ -\ coefficient}{x\ -\ coefficient}$$

(a)  

Two lines are represented by the equations   $$\frac{-1}{3}y\ =\ 5x\ +10$$ and y = mx.  For what value of m will the lines be parallel?​

Hint: multiply the x - coefficient with the -3

Parallel Slopes are the same

Example: For the equation y=7x-4, the slope will be 7

(a)  

Hint: Plug each value for n and check which answer satisfies the question

The formula to calculate the measure of an exterior angle = 360 ° ÷ number of sides = 360 ° /n

A regular Octagon is shown below.

Angle Q is 3x-57 degrees and angle M is 3x degrees.

Which statement explains why the equation 3x-57 = 3x can be used to solve for x?

Hint: Check which type of Octagon this is

A regular hexagon is defined as a closed 2D shape with six equal sides and six equal angles.

Hint: The ratio of circumference to its diameter will be π

and π is 3.14