Answer:
The time taken for the flare to hit the ground is approximately 10.7 seconds.
Step-by-step explanation:
Given : Suppose a flare is shot from the top of a 120 foot building at a speed of 160 feet per second. The equation 
models the h height at t seconds of the flare.
To find : How long will it take for the flare to hit the ground?
Solution :
The equation models the h height at t seconds of the flare.
The flare to hit the ground when h=0.
Substitute in the equation,
Applying quadratic formula, 
Where, a=-16, b=160 and c=120
Reject the negative value.
Therefore, the time taken for the flare to hit the ground is approximately 10.7 seconds.
1. Remove parentheses
-3x^2 + x^4 + x + 2x^4 - 7 + 4x
2. Collect like terms
-3x^2 + (x^4 + 2x^4) + (x + 4x) - 7
3. Simplify
-3x^2 + 3x^4 + 5x - 7
Answer:
$125.97
Step-by-step explanation:
To answer this question, simply plug the known values into the equation. We know that 100 is the principal (starting amount), 0.08 is the interest rate as a decimal, and t is 3 years.
Now plug in all those values to the given formula: B = p(1 + r)^t
Solve, and you end up with $125.9712, rounded to $125.97
Answer:
Step-by-step explanation:
Given
To find
- Coordinates of intersection of lines
As per the graph the intersection point has coordinates:
The point is (-3, -2)
5 root 41/41
draw a right triangle. label the sides. use the Pythagorean theorem. do sin of the angle A. rationalize denominator.
