Which expression can be simplified to the form 3\y + 3, where y is a positive integer?

Choice B)

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Explanation:

Let's rewrite the given expression like so

We can see that the radicand is a multiple of 9 since 9 is a factor.

This immediately rules out choices C and D because 75 and 84 are not multiples of 9.

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Plug in the smallest positive integer (1) for y to get

The radicand 36 is larger than the radicand for choice A (18), meaning we can rule out choice A. There's no way to get a radicand of 18 since y = 1 is the smallest we can go for.

We can however get to 63 by using y = 4

Showing that choice B is of the form where y is a positive integer, specifically when y = 4.

vertical=18cm horizontal=18cm hypotenuse=25.5

step-by-step explanation:

step-by-step explanation:

to determine whether a given function is even, we simply substitute x with -x in the expression. if the result after simplification is identical to the original equation, then the function is said to be even other wise odd.

f(-x) = (-x)^2 - (-x) + 8

      = x^2 + x +8

the resulting function is not identical to the original one;

f(-x) ≠ f(x)

therefore, f(x) is not an even function