Answer:
t ∈ {1, 3}
Step-by-step explanation:
You want to find t such that ...
h = 27
27 = -8t^2 +32t +3 . . . . . . substitute the expression for h
24 = -8t^2 +32t . . . . . . . . . subtract 3
-3 = t^2 -4t . . . . . . . . . . . . . divide by -8
1 = t^2 -4t +4 = (t -2)^2 . . . . add 4 to complete the square
±√1 = t -2 . . . . . . . . . . . . . . take the square root
t = 2 ± 1 . . . . . . . . . . . . . . . . add 2
t = 1 or 3
The object is 27 ft off the ground at t = 1 and again at t = 3.
Answer:
The answer top your question is: 1/2, 3/2, 5/2 and 7/2
Step-by-step explanation:
Data
4 consecutive numbers that add up to 8
First number = n
2nd number = n + 1
3rd number = n + 2
4th number = n + 3
Now, add them up n + n + 1 + n + 2 + n + 3 = 8
Simplify like terms
4n + 6 = 8
4n = 8 - 6
4n = 2
n = 2/4 = 1/2
First number = n = 1/2
2nd number = n + 1 = 1/2 + 1 = 3/2
3rd number = n + 2 = 1/2 + 2 = 5/2
4th number = n + 3 = 1/2 + 3 = 7/2
Answer:
143
Step-by-step explanation:
17 times 8 =136, 136 + 7 = 143
Answer: 0.04 miles
SOLUTION
Given,
Average daily distance of a garden = 0.05 mile.
Distance traveled on day 1 = 0.2 times as far as the average
distance
= 0.2 x 0.05 miles
= 0.01 miles
Distance traveled on day 2 = 0.6 times as far as the average
distance
= 0.6 x 0.05 miles
= 0.03 miles
Total distance traveled in two days
= Distance traveled on day 1 + Distance traveled on day 2
= 0.01 miles + 0.03 miles
= 0.04 miles
It’s equal to 9 may I get brainiless
