Answer: c
Step-by-step explanation:
Multiply the diameter by pi. You got it right
Answer:
- 4.5x + 4.7
Step-by-step explanation:
(2.5x - 5) - (7x - 9.7)
2.5x - 5 - 7x + 9.7
2.5x - 7x + 4.7
- 4.5x + 4.7
Answer:
3
k
+
20
Step-by-step explanation:
The given function is greater than or equal to 0 for the interval given as follows:
{x | x ≤ -3 or -1 ≤ x ≤ 0 or x ≥ 2}.
<h3>When a function is positive and when it is negative?</h3>
- A function is positive when it is above the x-axis.
- A function is negative when it is below the x-axis.
For this problem, with a closed interval, we have that the function is above for:
x ≤ -3, -1 ≤ x ≤ 0, x ≥ 2.
Hence the interval notation is:
{x | x ≤ -3 or -1 ≤ x ≤ 0 or x ≥ 2}.
More can be learned about functions at brainly.com/question/24808124
#SPJ1
Answer:
3
Step-by-step explanation:
The notation "f(4)" means you put 4 where x is in the algebraic expression, then do the arithmetic.
f(4) = 2·4 -5
= 8 -5
= 3
