saseflower

Always remember when solving these that you're trying to isolate the variable

w = cx - h

Add h on both sides

w + h = cx

Divide by c on both sides

(w + h)/c = x 

Okay, sorry and thanks Melody

The formula for the area of a rectangle is A = lw

A = 3(2 7/8)

Multiply

A = 8 5/8

8 5/8 square feet

P.S. If you don't know how to multiply 3 and 2 7/8, here it is below :

3(2 7/8)

Turn 3 into a fraction and 2 7/8 into an improper fraction

3/1 (23/8)

Multiply across

69/8

Turn into mixed number

8 5/8

6 x 5/3

Turn the 6 into a fraction

6/1 x 5/3

Multiply across

30/3

Simplify

10

-2g = -84

Divide both sides by -2

g = 42

10 x 16 = 160

There are 2.4384 meters in 8 feet

The vertex of a quadratic equation or parabola is the highest or lowest point of that equation. It lies on the plane of symmetry of the entire parabola as well; whatever lies on the left of the parabola is a complete mirror image of whatever is on the right. If you want to find the vertex of a quadratic equation, you can either use the vertex formula, or complete the square.

P.S. I found this off a website since I haven't done that yet... sorry!

10/100 = x/460

Cross multiply

100x = 4600

Divide by 100 on both sides

x = 46

3/16

Divide 3 by 16

0.1875

5/8

Divide 5 by 8

0.625