Answer:
F (x) = {32x+4, 0 < x < 10
25x + 9, x _> 10
Step-by-step explanation:
The one I guessed was wrong and it said that the one I put up above is the correct answer :)
Answer:
B
Step-by-step explanation:
Since the decimal goes on forever, it is Irrational. Any numbers with an infinite number of digits go under irrational numbers.
Answer:
Tamara incorrectly factored the whole expression.
Step-by-step explanation:
Note that
- 21x=3·7·x;
- 56xy=2·2·2·7·x·y.
Mark in bold all common factors, then GCF(21x,56xy)=7·x=7x.
Thus,
21x+56xy=7x(3+8y).
Hence, Tamara correctly found the GCF of numbers 21 and 56, but incorrectly factored the whole expression.
You cannot take the square root of a negative number
so set each of those things equal to 0
actually it has to be greater than or equal to 0
5x≥0
x≥0
x+3≥0
x≥-3
so x≥0 is the range
A is the answer, because sqrt(0)=0
