Answer:
Step-by-step explanation:
(2a + b)³
(2a)³ + b³ + (3)(2a)²(b) + (3)(2a)(b)²
8a³ + b³ + 12a²b + 6ab²
Answer:
C. 46, D. 32
Step-by-step explanation:
Each term is obtained by adding 4 to a multiple of 7.
Subtract 4 from each choice:
A. 32
B. 20
C. 42
D. 28
Only 42 and 28 are multiples of 7, so the answer is:
C. 46, D. 32
Translation please!
Hope this helps!
Maybe you could get a translation app.
Answer:
17 + z
Step-by-step explanation:
11 + 2(z+3) - z
11 + 2z + 6 - z
11 + z + 6
17 + z
Hope this was helpful :)
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.
