The perimeter of a shape is its length+width+length+width, or 2L+2W :).
So, in order to find the perimeter of Teresa's math book, she can add 2(28)+2(21).
Hope I helped! :)
Answer:
x=9/2
Step-by-step explanation:
Let's solve your equation step-by-step.
5x+4(−x−2)=−5x+2(x−1)+12
Step 1: Simplify both sides of the equation.
5x+4(−x−2)=−5x+2(x−1)+12
5x+(4)(−x)+(4)(−2)=−5x+(2)(x)+(2)(−1)+12 (Distribute)
5x+−4x+−8=−5x+2x+−2+12
(5x+−4x)+(−8)=(−5x+2x)+(−2+12) (Combine Like Terms)
x+−8=−3x+10
x−8=−3x+10
Step 2: Add 3x to both sides.
x−8+3x=−3x+10+3x
4x−8=10
Step 3: Add 8 to both sides.
4x−8+8=10+8
4x=18
Step 4: Divide both sides by 4.
4x/4=18/4
x=9/2
Step-by-step explanation:
<AOF and <COD are vertical angles.
m<AOF = m<COD = 80°
Angle Addition Postulate m<BOF - m<AOF = m<AOB
m<AOB = 135° - 80° = 55°
Answer:
b^(6c) = 3a is the only answer
Step-by-step explanation:
There is only one answer that works, and you put a check by it.
b is the base
When it is raised to the 6c power, you get 3a.
b^(6c) = 3a is the only answer
=========================
The only other possible answer would be
a = (1/3) b^(6c) which isn't there.
Answer:
(x + 2) (8x + 3)
Step-by-step explanation:
+
= (x + 2) (8x + 3)
L = 3/a = 3/8
R = 16/a = 16/8 = 2