Answer:
-2
Step-by-step explanation:
the slope-intercept form
The middle 50 percent of data are ages 13-31. Every segment of the plot is 25%, so in this plot the two center big boxes add up to 50%, which span 13-31 years of age.
Answer:
x = 3
Step-by-step explanation:
3^3 = 4(3) + 15 = 27
Answer:
75
Step-by-step explanation:
Let x represent the 5th score. Then:
70 + 80 + 85 + 90 + x
---------------------------------- = 80
5
Then:
150 + 175 + x 325 + x
-------------------- = 80 => ------------- = 80
5 5
so that: 325 + x = 400
Thus, x = 75.
If Josh earns a 75 on his 5th quiz, his 5-quiz average will be 80.
Answer:

Step-by-step explanation:
Cosine is the adjacent side over the hypotenuse (You can remember sin, cos, and tan by using sohcahtoa or sin = opposite/hypotenuse, cos = adjacent/hypotenuse, tan = opposite over adjacent). I think a picture would help, too.
I attached a picture of what I think the triangle would look like.
If the picture is right (we're assuming it is) and going with what we're given (the triangle was addressed as triangle XYZ, meaning that <u>angle Y is in the middle and that's the one we'll use</u>).
Looking at my picture then:
.