Answer:
D
Step-by-step explanation:
The 2 lines intersect at (1, 5)
The formula for the volume of a cylinder is v = π r² h
Let's use 3.14 for π.
Square 3.7 to get 13.69.
Multiply that by 3.14.
v = 42.9866 x 12
Finally, multiply it by 12.
v = 515.8392
You could also express your answer in terms of pi.
Square 3.7 to get 13.69.
Multiply it by 12. 164.28 is what you get.
v = 164.28π
Hope this helps!
Answer:
The zeros of the polynomial function are 1, -3, 3+i and 3-i.
Step-by-step explanation:
The given function is

We can find a zero of the given function by hit and trial method.
Substitute x=1 in the given function.


The value of function is 0 at x=1 it means (x-1) is a factor of given function.
Substitute x=-3 in the given function.


The value of function is 0 at x=-3 it means (x+3) is a factor of given function.

Divide the given function by
, to get remaining factors.

So, the factor form of given function is

Quadratic formula: If a quadratic equation is
, then

Using quadratic formula find the zeroes of
.


![[\because \sqrt{-1}=i]](https://tex.z-dn.net/?f=%5B%5Cbecause%20%5Csqrt%7B-1%7D%3Di%5D)

Therefore the zeros of the polynomial function are 1, -3, 3+i and 3-i.
X^2+4x+4+y^2-10y+25=-13+25+4
(x+2)^2 + (y-5)^2= 16
Third option
3*40 + x / 4 = 45.
The answer of x comes out to be 60. Which means that the speed was travel around 60 miles per hour in the last one hour of the total journey.
Well to understand how i constructed its equation is very simple. I equated the total average speeds answer to 45 and just calculated the average speeds with the help of algebra where x is the number of miles..