Answer:

Step-by-step explanation:
Considering the expression

Solution Steps:

as

so


join 
so






so


so



Therefore

Answer:
<h2>
V ≈ 628.3 cm³</h2>
Step-by-step explanation:
Volume of cylinder: V = π×r² × h
diameter = 20 cm ⇒ r = 10 cm
h = 2 cm
Volume:
V = π×(10)²×2 = 200π cm³ = 628.318.... cm³ ≈ 628.3 cm³
Answer:
B
Step-by-step explanation:
The equation of a circle is
(x-h)^2 + (y-k)^2 = r^2
h= 9, k = -7
r = 2, so r^2 = 4.
We now know that the equation must equal 4, so we can rule out answers A and C.
Plug in the values for h and k to get
(x-9)^2 + (y+7)^2 = 4
Choice B is correct!
Answer:
The answer is B
Step-by-step explanation:
For these equations, the number inside the parenthesis has to be greater than 1 in order to increase. You also have to multiply what is inside the parenthesis with what is outside.
It equals -1
you have collect like terms the -7w+w
which give you -6w then you have to divide both sides by -6
which gives you -1