Remember that
so
(a+ b)^2 = a^2 + 2ab + b^2
1. x^2 + 2x*9i + (9i)^2 = x^2 + 18xi - 81
2. x^2 + 2x*(3+5i)+ (3+5i)^2 = x^2 + 6x + 10xi+ 9+30i-25 = x^2 - 16 + 30i + 6x + 10xi
Answer:
A. The football does not reach a height of 15ft
Step-by-step explanation:
Given
Required
Determine which of the options is true
The option illustrates the height reached by the ball.
To solve this, we make use of maximum of a function
For a function f(x)
Such that:
:
i.e we first solve for 
Then substitute for x in
In our case:
First we need to solve
Then substitute for t in
By comparison:
Substitute 
for t in
This implies that the maximum height reached is 14.0625ft.
So, the option that answers the question is A because 
Answer: (-0.3) + 0.9= 0.6
Step-by-step explanation:
Answer:
answer 2 is correct
Step-by-step explanation:
Answer:
pythagorean theorem=a squared + b squared =c squared
where c is the hypotenus(the longest part)
Step-by-step explanation:
16 squared = 8 squared +....
16 ×16=256=8×8=64 + y
256_64=192
sq. root of 192=13.85
y=180_90=90
90÷2=45
y=45
z=45
x=13.85cm
hope you understand
