Answer:
y = 25
Step-by-step explanation:
Hope this helps!
The mean is not the same thing as median
mean=78+81+85+87=331
mean=331/4=82.75
median is the middle number, but you have a par set of numbers, so your median will be the middle numbers 78,81,85,87 , which are 81+85=166, 166/2=83
83 is your median
Answer:
The integral is equal to 
for an arbitrary constant C.
Step-by-step explanation:
a) If 
then 
so the integral becomes 
. (the constant of integration is actually 5C, but this doesn't affect the result when taking derivatives, so we still denote it by C)
b) In this case 
hence 
. We rewrite the integral as 
.
c) We use the trigonometric identity 
is part b). The value of the integral is 
. which coincides with part a)
Note that we just replaced 5+C by C. This is because we are asked for an indefinite integral. Each value of C defines a unique antiderivative, but we are not interested in specific values of C as this integral is the family of all antiderivatives. Part a) and b) don't coincide for specific values of C (they would if we were working with a definite integral), but they do represent the same family of functions.
The area<span> and the </span>circumference<span> of a circle. Make sure that you remember that a</span>circumference<span> is a length and so is measured , , etc. Remember as well that </span>area<span> is measured in square units, , etc. All of these calculations will involve the use of Pi ( ) which you can take as being equal to .</span>
Its very easy
455 means 5*7*13
now divide (5*7*13) by 7
you will easily get 5*13=65
