Answer:
x^2+y^2=121
Step-by-step explanation:
Since you are at (0,0), you don't need to put K or H for the equation (x-h)^2+(y-k)^2=a^2.
Answer: A. The difference of the two means is significant at the 68% confidence level, so the null hypothesis must be rejected.
Step-by-step explanation:
I just got it right on PLATO, so I know it’s 100% correct.
Answer:
the left side 1 does not equal to the right side 3 which means that the given statement is false.
Step-by-step explanation:
Answer:
Greater Than
Step-by-step explanation:
edge
Step-by-step explanation:
If x = the amount of 12% and y = the amount of 20%, then x + y = 80
Since we need 80 grams of 15%, 80(.15) = 12.
We are given that .12x + .20y = 12.
We can solve the first equation for x or y. Let's do x.
x = 80 - y
.12(80 - y) + .20y = 12
9.6 - .12y + .20y = 12
.08y = 2.4
y = 30
x = 80 - 30 = 50
