Thanks for the points :) hope you’re having a good day
Answer:
none of your options are right
Step-by-step explanation:
<h2>Three less than seven times a number:</h2>
<u><em>three : 3, less than : (-), seven : 7, times : (multiplication symbol), a number : (x)</em></u>
<u><em>the answer is : 3 - 7 (x)</em></u>
<u><em>: 3-7x</em></u>
Answer:
Step-by-step explanation:
So if you count the length, and width then times them then you will get the right answer.
Answer:
The correct option is b.
Step-by-step explanation:
The formula for standard deviation is
where, is mean of the data and n is number of observation.
The variance of a stock's returns can be calculated by the above formula.
Variance of stock's returns is the average value of squared deviations from the mean.
Therefore the correct option is b.
9514 1404 393
Answer:
D. (-3, -2)
Step-by-step explanation:
The equations have different coefficients for x and y, so will have one solution. The solutions offered are easily tested in either equation.
Using (x, y) = (-2, -3):
x = y -1 ⇒ -2 = -3 -1 . . . . False
Using (x, y) = (-3, -2):
x = y -1 ⇒ -3 = -2 -1 . . . .True
2x = 3y ⇒ 2(-3) = 3(-2) . . . . True
The solution is (-3, -2).
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If you'd like to solve the set of equations, substitution for x works nicely.
2(y -1) = 3y
2y -2 = 3y . . eliminate parentheses
-2 = y . . . . . . subtract 2y
x = -2 -1 = -3
The solution is (x, y) = (-3, -2).