<h3>
Answer: True</h3>
Explanation:
The area of the circle with radius 10 is...
A = pi*r^2
A = pi*10^2
A = 100pi
The surface area of the sphere with radius 5 is...
SA = 4pi*r^2
SA = 4pi*5^2
SA = 100pi
Both results are the same, so the claim is true. We can think of surface area as the amount of wrapping paper needed to cover the sphere.
Answer:
The standard enthalpy of combustion of ethene gas, , is at . Given the following enthalpies of formation, calculate for .
Step-by-step explanation:
The standard enthalpy of combustion of ethene gas, , is at . Given the following enthalpies of formation, calculate for .
<h3>
Answer: Choice A. 8pi feet</h3>
======================================================
Explanation:
The perimeter around the circle is known as the circumference
The full circumference of a circle with radius r is
C = 2*pi*r
In this case, r = 16 is the radius, so,
C = 2*pi*r
C = 2*pi*16
C = 2*16*pi
C = 32pi
is the full distance around the circle. But we only want 90/360 = 1/4 of that total distance. So take 1/4 of 32pi to get
(1/4)*32pi = (1/4*32)pi = 8pi
The arc length is exactly 8pi feet long
Approximately this is about 25.13274 feet
Answer:
16 and 64
Step-by-step explanation:
When you sqaure root 16, you get 4
When you cube root 64, you get 4
Answer ~
<u>A) ∠1 and ∠8 are alternate exterior angles.</u>
<u>B) ∠4 and ∠6 are same side interior angles.</u>
<u>E) ∠3 and ∠6 are alternate interior angles.</u>
<u></u>
:)
