The correct answer would be C) 3%
Answer:
It's image
Step-by-step explanation:
Refraction of light and particles
Answer:
see explanation
Step-by-step explanation:
To find the x- intercepts set y = 0, that is
- 2x² - 9x + 5 = 0
To factorise the quadratic consider the factors of the product of the coefficient of the x² term and the constant term that sum to give the coefficient of the x- term.
product = - 2 × 5 = - 10 and sum = - 9
The factors are - 10 and + 1
Use these factors to split the middle term
- 2x² - 10x + x + 5 = 0 ( factor the first/second and third/fourth terms )
- 2x(x + 5) + 1(x + 5) ( factor out (x + 5) )
(x + 5)(- 2x + 1) = 0
equate each factor to zero and solve for x
x + 5 = 0 ⇒ x = - 5
- 2x + 1 = 0 ⇒ x = ![\frac{1}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D)
x-intercepts are x = - 5 and x = ![\frac{1}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D)
R + c=24
r=3c
3c+c=24
x=6
So there are 18 rock CDs
Answer:
2.25π square inches
Step-by-step explanation:
Area = π![r^{2}](https://tex.z-dn.net/?f=r%5E%7B2%7D)
Diameter = 2r
So in this case, radius = 1.5 inches
Plugging that into the area formula produces the answer