7/8 + -1 1/2 = -4/5 (Or in decimal form - 0.8)
Answer:
The measure of the reference angle is
Step-by-step explanation:
The reference angle of an angle is the magnitude of the smallest angle it makes with the x-axis. In this case, we have (*Note: , use to convert to degrees)
Answer:
I don't understand what you mean can you rephrase that in the comments and i'll answer there
Answer:
vertex (-4,-1)
2nd point ( 0,31)
Step-by-step explanation:
f(x) = 2x^2 + 16x + 31
First find the vertex
The x coordinate of the vertex is -b/2a where ax^2 +bx +c
-16/ 2(2) = -16/4 = -4
Substitute into the function
f(-4) = 2 ( -4)^2 +16(-4) +31
= 2 *16-64 + 31
= 31 -64 +31
= -1
The vertex is at ( -4,-1)
Another point can be x=0
f(0) = 0+16(0)+31
= 31
( 0,31)
Answer:
median: 8
mean: 7.7
Step-by-step explanation:
In order to find median (the middle number is a set of data), you need to first put the numbers in order from least to greatest:
4, 5, 8, 8, 10, 11
Since there are two numbers in the middle - 8 and 8, you can add them together and divide by two to get the median:
8 + 8 = 16 ÷ 2 = 8
Mean is the average of the set of data and can be found by finding the sum of the data and dividing by the total number of data points.
4 + 5 + 8 + 8 + 10 + 11 = 46 ÷ 6 ≈ 7.7