The formula for the area of a square with sides of length x is A = x2 so
x2 = 400 is the equation
This equation has 2 solutions, namely x = ±√400 = +20 or -20
The negative solution does not make sense because a length cannot be less than 0.
The total length needed to go around the painting is the perimeter of the square, which is
P = 4*x = 4*20 = 80 inches
Answer:
x=17
Step-by-step explanation:
24-3x=-27
1) Subtract 24 from both sides:
-3x=-51
2) Divide both sides by -3:
x=17
Footnotes:
Don't forget, your goal is to <em>isolate</em> the variable, or get it on one side of the equation
Answer:
I and III
Step-by-step explanation:
On a unit circle, the only two angles whose sine is
are
and
, otherwise known as
. Therefore, the correct answers are I and III. You can see the unit circle below, where the y coordinates of the above angles show
.
Answer:
380/week
Step-by-step explanation:
all u do is 1520 divide by 4 (bc he makes 1520 in 4 weeks) and that would equal 380 per week.
hoped that helped:P