Hi! I can help you with
The formula for finding the perimeter of a rectangle
P= 2(a+b)
Plug in the numbers and
P=2(18+15) (
P=2(33)
P=66
Hope it's correct!
Answered by
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Answer:
The value of given expression is 3.8.
Step-by-step explanation:
Given:
We need to find the simplified value of given expression using y =14
Solution:
Now we will substitute y =14 we get;
Now using PEDMAS we will first solve the parenthesis we get;
Now we will solve the exponent function we get;
we know that;
So we can say that;
Now we will solve the multiplication operation.
Now we will perform addition operation.
And finally we will perform subtraction operation.
3.8
Hence The value of given expression is 3.8.
The equation of the height as a function of time for this case is given by:
h (t) = - 16t ^ 2 + 10t + 100
By the time the egg hits the ground we have:
-16t ^ 2 + 10t + 100 = 0
We look for the roots of the polynomial:
t1 = -2.2069555463432966
t2 = 2.8319555463432966
As it is about time, we use the positive root:
t = 2.83 s
Answer:
it hits the ground at:
t = 2.83 s
20 + 0.75h > 65
where h represents hours