Answer:
B
Step-by-step explanation:
(1 1/2,-2)
solve for x and get 1 1/2
solve for y and get -2
Answer:3: If a linear system has the same number of equations and variables, then it must have a unique solution.
Step-by-step explanation:just this which correct
Answer:
They are 7 and 11. 11 + 7 = 18, 11 - 7 = 4.
Answer:
The answer is an obtuse angle
Step-by-step explanation:
Anything over 90 degrees is obtuse. Anything below 90 is acute and if is exactly 90 it is a right angle
We know that : 1 kg = 2.2 pounds.
x = 2.81 * 2.2 = 6.182 pounds
s = 1.32 * 2.2 = 2.904 pounds.
Answer:
The mean increase: x = 6.182 pounds.
The standard deviation: s = 2.904 pounds.
