Answer:
Positive real numbers
Step-by-step explanation:
The domain is all the possible values of x. Here, x represents the time that the ball falls.
Natural numbers are integers greater than 0 (1, 2, 3, etc.). However, the time doesn't have to be an integer (for example, x=1.5).
Positive integers are the same as natural numbers.
Positive rational numbers are numbers greater than 0 that can be written as a ratio of integers (1/1, 3/2, 2/1, etc.). However, the time can also be irrational (for example, x=√2).
Positive real numbers are numbers greater than 0 and not imaginary (don't contain √-1). This is the correct domain of the function.
Answer:
The width is 19 units. The length is 21 units.
Step-by-step explanation:
W=width: L=length=W+2; P=perimeter=80
P=2(L+W)
80=2(W+2+W)
40=2W+2
38=2W
19=W answer 1: The width is 19 units.
L=W+2=21 ANSWER 2: The length is 21 units.
CHECK:
P=2(L+W)
80=2(21+19)
80=2(40)
80=80
Answer: I think I would be about 1.323 miles per Hour
Step-by-step explanation:
Answer:
Step-by-step explanation:
Initial class size = 30 students
<u>Class size now is 40% larger:</u>
- 30 + 40% =
- 30 + 30*40/100 =
- 30 + 12 =
- 42
Given:
There are 4 quarts in a gallon.
She wants to convert 6 quarts to a gallon.
To find:
Whether she should multiply 6 by 4 or divide 6 by 4 to find her answer.
Solution:
We have,
Here, 6 quarts is equal to 
gallon. It means we need to multiply 6 by 4 in to find the answer.
