This is very particular chancery do I don’t know what to do I don’t know what hold on plus X +6 equals X +10+10 whoops I didn’t mean to send this
Answer:
<h3>5 seccs</h3>
Step-by-step explanation:
Given the modeled function of the height expressed as;
h(t)=-16t^2+64t+80
The ball hits the ground when h(t) = 0 (when the height is zero)
Substitute into the function and find t;
0 =-16t^2+64t+80
divide through by -16
0 = t²-4t-5
Factorize;
t²-4t-5 = 0
t²-5t+t-5 = 0
t(t-5)+1(t-5) = 0
(t+1)(t-5) = 0
t + 1 = 0 and t-5 = 0
t = -1 and t = 5
Time can't be negative
Hence it will take the ball 5secs before it hits the ground
Answer:
Number 1 = 3, Number 2 = 1
Step-by-step explanation:
Create an each for the two number and make the sum of those two numbers equal to 4.
Number 1 we will make x
Number 2 will then be 2x - 5 (five less than two times the first number)
Equation is the sum of the two number and equal to 4
x + 2x - 5 = 4
3x - 5 = 4
Add 5 to both sides
3x = 9
Divide both sides by 3
x = 3
Test your answer.
Number 1 would be equal to 3
Number 2 would be 2(3) - 5 which is 1
Sum of the two numbers 3 + 1 = 4
Answer:
b x 390 =339
Step-by-step explanation:
