The formula for the radius of a sphere is:
r(s) = sqrt[s/(4pi)]
This is based on the formula that s = 4pi*r^2
As can be seen, as the surface area increases, s/4pi increases, and sqrt(s/4pi) will also increase, meaning that the radius will increase. This continues until the balloon reaches the maximum s = 1500 cm^2.
The correct answer is the first choice:
<span>As the surface area of the balloon increases, the radius of the balloon increases until the maximum surface area is reached.</span>
-2 * -21=42
-2-21= -23 NOPE
-3*-14 = 42
-3-14= 17 NOPE
-7*-6= 42
-7-6 = -13 YES!!!
The answer is -7 and -6.
Answer:
If asking for <em>x</em>, then x is 2. If asking for 4x + (-4) or -2x + 8, then the answer is 4.
Step-by-step explanation:
Hello :
<span>-x^2+9x-7 =0
delta = b²-4ac =9²-4(-1)(-7) = 81-28 = 53</span><span>>0
two reals solutions</span>
Answer:
Segment A D is congruent to segment B C.