Answer:
(
−
∞
,
∞
) {
x
|
x
∈
R
}
Step-by-step explanation:
The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.
Answer:
B
Step-by-step explanation:
Answer:
B.
Step-by-step explanation:
<u />
The only answer that has both the arrow going right ( Look at the sign) and the open dot ( less than or equal to and greater than or equal to always have an open dot) is B.
Answer:
$20
Step-by-step explanation:
First we will change the ratio so that we are finding how much money Siti receives to the total amount of money.

Now we can solve for how much money Siti receives using a proportion.

We can see that the denominator increases 5 times, so the numerator must increase 5 times too. This means Siti receives $20.
Answer:
b
Step-by-step explanation:
because the 1 is negative