Answer:
1.92 × 10¹²
Step-by-step explanation:
Given:
Frequency of the MRI, f₁ = 6.38 × 10⁷ Hz
thus,
the wavelength = C / f
where,
C is the speed of the light
therefore,
wavelength of the electromagnetic wave by MRI, λ₁ = C / f₁
or
λ₁ = C / 6.38 × 10⁷ Hz
now,
Frequency of the PET, f₂ = 1.23 × 10²⁰ Hz
Thus,
wavelength of the electromagnetic wave by PET, λ₂ = C / f₂
or
λ₂ = C / 1.23 × 10²⁰ Hz
therefore,
the ratio of the MRI wavelength to the PET scanning wavelength
= λ₁ / λ₂
or
= ![\frac{\frac{C}{6.38\times10^7}}{\frac{C}{1.23\times10^{20}}}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Cfrac%7BC%7D%7B6.38%5Ctimes10%5E7%7D%7D%7B%5Cfrac%7BC%7D%7B1.23%5Ctimes10%5E%7B20%7D%7D%7D)
or
= ![\frac{1.23\times10^{20}}{6.38\times10^7}](https://tex.z-dn.net/?f=%5Cfrac%7B1.23%5Ctimes10%5E%7B20%7D%7D%7B6.38%5Ctimes10%5E7%7D)
or
Ratio of the MRI wavelength to the PET scanning wavelength = 1.92 × 10¹²
Answer:
40% male and 60% female
Step-by-step explanation:
Add all the experiments, and then divide the variables by the number of experiments
Variables :T and H
1) x = 5
2x + 5 = 30 - 3x
(+ 3x)
5x + 5 = 30
(- 5)
5x = 25
( / 5)
x = 5
2) x = -2
(-4 * 11x) + (-4 * 2) = 80
-44x - 8 = 80
(+ 8)
-44x = 88
( / -44)
x = -2
3) x = 49
3x + 33 = 180
(- 33)
3x = 147
( / 3)
x = 49
I hope this helps! The / symbol means divide by the way :)
No spaces? like t h i s? or like thiiiss??? is this bugging you ????
anyway
use elimination
multiply secn equation by -1
-3x-2y=-6
add to other equation
-3x-2y=-6
<u>4x+2y=10 +</u>
1x+0y=4
x=4
sub back to solve for y
3x+2y=6
3(4)+2y=6
12+2y=6
minus 12 both sides
2y=-6
divide 2
y=-3
(4,-3)