Answer:
Step-by-step explanation:
we are given series as
S(infinity)=20-10+5-..
Firstly, we will check type of series
first term=20
second term=-10
third term =5
now, we can find common ratios
we can see that both ratios are equal
so, this is geometric series
we can use sum of infinite terms formula
where a is first term
a=20
r=-0.5
now, we can plug values
This is the concept of application of quadratic expressions. Given that the height of the ball is modeled by the equation;
h=-7.3t^2+8.25t+2.1+5
The time taken for the ball to hit the ground will be given as falls;
-7.3t^2+8.25t+7.1=0
to solve for t we use the quadratic formula;
t=[-b+/-sqrt(b^2-4ac)]/(2a)
a=-7.3, b=8.25, c=2.1
t=[-8.25+/-sqrt[8.25^2+4*7.3*7.1]/(-2*7.3)
t= -0.572
or
t=1.702
since there is not negative time we take the time taken for the ball to hit the ground will be: t=1.702 sec
Answer:
8
Step-by-step explanation:
The equation for the area of a parallelogram is A=bh. In this case, the base is 4 and the height is two so the equation would be 4*2 which would be eight.
If yo want to simplify
2x-4+3x-7
2x+3x-4-7
5x-11
Answer:
D. None of the Above
Step-by-step explanation:
They don't relate whatsoever