The answer is either A or D, B and C are off the table because the two shapes need to be graphed for those to be relevant. The answer you get should be A I believe.
Nanometers are a really small measurement, one billionth of a meter, I believe.
So nanometers is used to describe tiny stuff, like atoms of a water molecule, and waves of light.
Answer:
Step-by-step explanation:
I assume that the last question should read "cosE"
Answer: 60 student tickets were sold
90 adult tickets were sold
Step-by-step explanation:
Let x represent the total number of student tickets sold.
Let y represent the total number of adult tickets sold.
The Glee Club sold a total of 150 tickets to their spring concert. This means that
x + y = 150
x = 150 - y
Student tickets cost $5.00 each and adult tickets cost $8.00 each. If they had $1,020 in ticket sales,then,
5x + 8y = 1020 - - - - - -1
Substituting x = 150 - y into equation 1, it becomes
5(150 - y) + 8y = 1020
750 - 5y + 8y = 1020
- 5y + 8y = 1020 - 750
3y = 270
y = 270/3 = 90
x = 150 - 90 = 60
