surface area of cylinder = 2*pi*r*h + 2*pi*r^2
= 2*8*14*pi = 224pi
+ 2*8^2*pi = 128 pi
224+128 = 352
so answer is 352 pi
Answer:
Is this really true?
Are you talking bout the people that put those links as answers?
Step-by-step explanation:
H = 0.75n is the expression as a product to represent the sale price of the shirt
<em><u>Solution:</u></em>
Given that, Miranda buys a shirt at the mall
She has a coupon for 25 % off
To find: Expression as a product to represent the sale price of the shirt
Let "H" be the sale price of shirt
Let "n" be the original price of shirt
From given statement,
discount = 25 % of original price
Therefore,
discount = 25 % of n
<em><u>The sale price is given as:</u></em>
<h3>Sale price = Original price - discount price</h3>
H = n - 0.25n
<h3>H = 0.75n</h3>
Thus expression as a product to represent the sale price of the shirt is found
Which two numbers add up to -80 and multiply to -81?
-81 and 1
Rewrite the expression using the above
(x^4 - 81)(x^4 + 1)
Rewrite x^4 - 81 in the form; a^2 - b^2, where a = x^2 and b = 9
((x^2)^2 - 9^2)(x^4 + 1)
Use the Difference of Squares: a^2 - b^2 = (a + b)(a - b)
(x^2 + 9)(x^2 - 9)(x^4 + 1)
Rewrite x^2 - 9 in the form a^2 - b^2, where a = x and b = 3
(x^2 + 9)(x^2 - 3^2)(x^4 + 1)
Use the Difference of Squares; a^2 - b^2 = (a + b)(a - b)
<u>(x^2 + 9(x + 3)(x - 3)(x^4 + 1)</u>