The area of a rectangle is expressed as x4 − 16y^4, determine & state the length and the width of the rectangle, expre
ssed as polynomials.
1 answer:
Answer:
Step-by-step explanation:
16 = 2 *2 * 2 * 2 = 2⁴
16y⁴ = (2y)⁴
x⁴ - 16y⁴ = x⁴ - (2y)⁴
= (x²)² - [ (2y)² ]²
{Use identity = a² -b² =(a +b)(a- b). Here a =x² & b =(2y)²}
= (x² + (2y)² ) (x² - (2y)² )
= (x² + 4y²) (x² - 4y²)
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3xy+x=-29
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Answer:
rearrange into y=mx+c
so it becomes
3y= -2x+24
y= (-2/3)x+24
substitute values for x
when x is 0
y is (-2/3)*0=0 +24 =24
<h2>y=24</h2>
for x intercept
0=(-2/3)*x+24
0-24=-2/3*x
-24/(-2/3)=x
<h2>
x= -36</h2>
Radius = 1.25cm
81cm3 / 20 = 4.05 cm3 per cone
V cone = πr^2 (h/3)
So then 4.05 = π(1.25)^2 (h/3)
Then h/3 = .825 and then
h = 2.475 cm
Answer:the answer to this will be 14m
