Step-by-step explanation:
Number of students who wore a hat
= 4/7 * Number of students who bought a ticket
= 4/7 * 350 students
= 200 students.
Number of students not wearing a hat
= Number of students who bought a ticket - Number of students who wore a hat
= 350 students - 200 students
= 150 students.
Answer:
B is true
C is false
D is false
Step-by-step explanation:
- B is true because two negative numbers are added together, the outcome is negative hence always less than 0
- C is false due to needing a negative number add to -1.5 to be less, a positive only makes the number greater
- D is false since you are adding 0.9 (9/10), anything less than this will m ake the sum be greater than 0
example: - 0.5 + 0.9 = 0.4 or - 0.8 + 0.9 = 0.1
Answer: 2/5
Step-by-step explanation:
You have to work it out
First you would do $325.49 divided by 10 and you would get $32.55. so you would need $32.55 a week.
This parabola is a vertical one, symmetrical about the y-axis. It opens DOWN. We know that because the focus is beneath the vertex.
We need to write this equation in the form y-k = 4p(x-h)^2, where (h,k) is the vertex. p represents the distance between the vertex and the focus, and is
|-4-(-5)|, or 1.
Thus, y-(-4) = 4(1)(x-0)^2, or y+4 = 4x^2.