Answer:
Step-by-step explanation:
The area of a trapezoid can be found by multiplying the average of its bases and its height.
We're given:
- One base of 4 cm
- One base of 12 cm
- Height of 1/6 cm
To find the average of a set of 
values, add all the values in the set and divide by . Therefore, to find the average of the two bases, we add 4 to 12 and divide by 2.
The average of the bases is therefore 
Thus, the area of the trapezoid is 
Answer:
53 cm
Step-by-step explanation:
Using Pythagoras Theorem,
The hypotenuse
= 53 cm
Answer: B
Step-by-step explanation:
Perimeter = 2(length+width)
'CD' = 20×cos(30) = 17.3205
width 'AD' = 20×cos(60) = 10
Perimeter = 2(17.3205+10)
= 2(27.3205)
= 54.641 =54.6
Answer:
yes, the discount is more than 30%
Step-by-step explanation:
The price change percentage is ...
%change = ((new price)/(old price) -1) × 100%
= (44.20/68 -1) × 100%
= -0.35 × 100% = -35%
The jacket was marked down 35%, so matches the ad description.
Answer:
Step-by-step explanation:
p/4 + 8 = 7
Bring 8 to the left side of the equation.
p/4 = 7 - 8
p/4 = - 1
Bring 4 to the other side.
p = - 1 * 4
p = - 4
