Answer:
d. −7/32
Step-by-step explanation:
The expression that we have to evaluate in this problem is:

We have to evaluate this expression for:
x = -2
y = 4
We start by rewriting the expression by rewriting it using the following:

So the expression can be rewritten as

Now we observe that:

Therefore, by substituting x = -2 and y = 4 into the expression, we find:

The answer is A I am pretty sure. This is because in choice B, you would be dividing 7 and the sum of x + 5. In choice C you would not be multiplying 7 and the sum of x + 5. When he question asks for the product, it is asking for you to multiply. In choice D you would not just be squaring y, you would be squaring 2xy, which is not what we want. We only want to square y, therefore I believe the correct answer is A.
6/8 can be simplified to 3/4. Therefore the answer is C. 20 X 3/4
Answer:
=64 %
Step-by-step explanation:
The percentage decrease is found by
Percent decrease = (original - new)/ original * 100 percent
The original price is 25
The new price is 9
Percent decrease = (25-9)/25 * 100%
=16/25 * 100%
=64 %
Answer:
The range consists of all real numbers where y ≠ 0
Step-by-step explanation:
reciprocal parent function is y = 1/x
If y = 0, then 1 would have to be divided by a number to equal 0. This would require x to equal a number that can divide 1 to equal 0. Because this is not possible, y cannot be 0.