200.96 square cm
Area of circle = pi * r^2
= 3.14 * 8^2
= 200.96 square cm
Answer:
see explanation
Step-by-step explanation:
step 4 take the square root of both sides
= ± 
x + 4 = ±
step 5 subtract 4 from both sides
x = - 4 ±
step 6 solve for x
x = - 4 - or x = - 4 +
Answer: 120
Step-by-step explanation:
parenthesis first
(5 +7) = 12 x 6 +4 = 10 = 120
Answer:
27 cm
Step-by-step explanation:
This is a right triangle, so we can use the Pythagorean theorem
a^2 +b^2 =c^2
a and b are the legs and c is the hypotenuse.We know one of the legs is 13 and the hypotenuse is 30
13^2 + b^2 = 30^2
169 + b^2 = 900
Subtract 169 from each side
169-169 +b^2 = 900-169
b^2 = 731
Take the square root of each side
sqrt(b^2) =sqrt(731)
b = 27.03
Given the percentage taken off and the reduced price, the original price of the item is $142.
<h3>What was the original price of the item?</h3>
Given the data in the question;
- Percentage off the item = 20%
- Reduced price of the item = $113.60
- Original price of the item = ?
The original price of the item is at 100%, if the 20% is taken off. The price is now at 80%.
Hence 80% of the original price will give the reduced price.
Let the original price be represented by x
80% × x = $113.60
We solve for x
80/100 × x = $113.60
80x/100 = $113.60
Cross multiply
80x = $11360
x = $11360/80
x = $142
Given the percentage taken off and the reduced price, the original price of the item is $142.
Learn more about Percentages here: brainly.com/question/24159063
#SPJ1
