10. Which color on the visible light part of the EM spectrum has the lowest 11. How are the types of waves arranged on the electromagnetic spectrum?
D. Violet
C. Red
B. Indigo
frequency?
A. Orange
A. By wavelength
C. In order
B. Alphabetically
D. By number of atoms
12. What type of energy doesn't require a medium?
A. Mechanical
C. Electromagnetic
B. Transverse
D. None of the above
13. Which of the following is listed from longest to shortest wavelength?
A. Microwaves, x-rays, ultraviolet
B. Gamma rays, x-rays, microwaves
C. Microwaves, x-rays, gamma rays
D. Visible light, microwave, infrared
D. Microwaves
7. What kind of wave has the second shortest wavelength?
A. X-ray
B. Ultraviolet C. Radiowaves
nocond longest wavelength?

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation: