Answer:
Step-by-step explanation:
find the average
$2520 / 20 days = ______ pay per day
7x - (25x^2 + 12x) = 7x - 25x^2 - 12x = -25x^2 - 5x
Answer:
Step-by-step explanation:
Comment
You are given values for the adjacent side of <x and the hypotenuse of a right triangle. This defines the Cosine of an angle
Equation
Cos(x) = a/c the way you have labeled it.
Givens
a = 9
c = 18
Solution
Cos(x) = a / c
Cos(x) = 9 / 18
cos(x) = 1/2
x = cos-1(1/2)
x = 60 degrees
Answer
x = 60
The first term is 7, and the common difference is 4. We know this because 11-7=15-11=4. So the nth term is going to be 7+4(n-1). The 26th term will be 7+4(26-1)=7+100=107. The sum of the series is going to be (107+7)*13=1482.
Answer:
Step-by-step explanation: The answer for 7: is 7/2
8: 28/5.
9: 9/4
10: 24/5