P = 2*pi*sqrt(a^2 +b^2/2 =
2 *3.14 * sqrt(15/2^2 +7.5/2^2/2 =
6.28 x sqrt(56.25+14.0625/2
6.28 *sqrt(35.15625)
6.28 * 5.929270613= 37.235
answer is B 37.3 feet
Answer:
There were 84 students in 6th grade, 68 in 7th grade, and 90 in 8th grade.
Step-by-step explanation:
Given that Elk middle school has 264 students, and there are 84 students in the eighth grade, and there are 22 fewer seventh-grade students than sixth-grade students, to determine how many students there are in each grade, the following calculation must be performed:
(264 - 84) / 2) - 22 = X
(180/2) - 22 = X
90 - 22 = X
68 = X
6th grade = 84
7th grade = 68
8th grade = 90
Therefore, there were 84 students in 6th grade, 68 in 7th grade, and 90 in 8th grade.
Answer:
0.36ml
Step-by-step explanation:
Note: micrograms =
Given the concentration,
Answer:
The inner function is .
The outer function is .
Step-by-step explanation:
The inner function is the one we apply the outer function to.
So
We apply the outer function tangent to .
So, the inner function is .
The outer function is .
The derivative of a compositve function
in which is given by the following function.
So
So
Domik weights 30 pounds more than his sister
Together they weigh 330 pounds
Let "x" represent the weight of Dominik's sister, then his weight can be expressed as "x+30"
And their total weight can be calculated as:
From this expression you can calculate the value of x:
x=150 pounds
x+30=150+30=180 pounds
Dominik weights 180pounds and his sister 150 pounds