<h3>
Answer: 5</h3>
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Explanation:
Apply the difference of squares rule
x^2 - y^2 = (x-y)(x+y)
x^2 - y^2 = (5)(1)
x^2 - y^2 = 5
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Alternatively, you can solve the system
for x and y to get (x,y) = (3,-2).
Then compute x^2-y^2 = 3^2-(-2)^2 = 9-4 = 5
Answer: Substitution
Step-by-step explanation:
Because you know A is equal to B, you can substitute A for B in any mathematical equation. Essentially, you are switching mA $ mB.
Answer:
c
Step-by-step explanation:
Answer:
count: Sum up a pre-set interval of values in excel cells.
countif: sum up a pre-set interval of values according to certain rules determined by the user.
averageif: sum the values in cells and the divides the result by the total of cells considered in the function.
Step-by-step explanation:
count: Sum up a pre-set interval of values in excel cells.
countif: sum up a pre-set interval of values according to certain rules determined by the user.
averageif: sum the values in cells and the divides the result by the total of cells considered in the function.
Answer:
what
Step-by-step explanation:
