Answer:
Step-by-step explanation:
Given
Required:
Determine the time taken to return to the ground
From the equation given; height (h) is a function of time (t)
When the rocket returns to the ground level, h(t) = 0
Substitute 0 for h(t) in the given equation
becomes
Solve for t in the above equation
Factorize the above expression
Split the expression to 2
Solving the first expression
Divide both sides by -4
Solving the second expression
Add 30 to both sides
Divide both sides by 4
Hence, the values of t are:
and
shows the time before the launching the rocket
while
shows the time after the rocket returns to the floor
My answer is 60
Product means the result of a multiplication problem or more.
Sum is addition
So , 10+2=12•5=60
The 31.31% of the $54.6 Billion was spent.
for the percentage solution
x%=(amount spent on veterinary/ total amount) *100
Calculation:
let "x" be the percent of $54.6 billion spent on veterinary and total amount spent is $17.1 billion.
putting values in above formula
x%=(17.1/54.6)*100
x%=(0.3131)*100
x%=31.31
The 31.31% of the $54.6 Billion was spent.
Learn more about the percentage here:
brainly.com/question/14091961
#SPJ1
Answer:
D. 59.66
Step-by-step explanation:
The formula is <em>A = ![\pi r^{2}[/tex\ Also the radius is half of the diameter. and [tex]\pi](https://tex.z-dn.net/?f=%5Cpi%20r%5E%7B2%7D%5B%2Ftex%5C%20%3C%2Fem%3EAlso%20the%20radius%20is%20half%20of%20the%20diameter.%20and%20%5Btex%5D%5Cpi)
= 3.14</em>
so we need to find the area's
9 x 9 = 81
81 x 3.14 = 254.34
Next circle.
10 x 10 = 100
100 x 3.14 = 314
Now to find the difference.
314 - 254.34 = 59.66
59.66
Hope this helped! Please mark as brainliest! Thanks!
