The answer is the first one, because when you expand it you get -1/4 × 1, which equals -1/4, and -1/4 × -2y, which equals 1/2y. These are the same terms in the given expression -(1/2 + 1/4). I hope this helps!
Answer: B you will say 3×3×3×3 and then you muntiply
Opposite:
Just change the sign.
If it's a positive number, make it negative.
If it's a negative number, make it positive.
Absolute value:
Even easier.
Just throw away the sign, and you have it.
Answer:
60 cm^2
Step-by-step explanation:
<h3>
Answer: Choice A</h3>
The -3 out front of that function means |-3| = 3 is the amplitude, which is the largest of the four functions.
In general, the sine function is
y = A*sin(B(x-C)) + D
where |A| is the amplitude. In the first answer choice, A = -3 so |A| = |-3| = 3.
Cosine has the same format since cosine is just a phase shift of sine.
