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:
1.0217
Step-by-step explanation:
so u can just didvide 5.1085 and u should get 1.0217 andi fi am wronbg i would check just ikn case
An obtuse angle is an angle between 90*-180*
Expressions
are irrational.
Expressions
and
are rational.
Rational and irrational expression :
The given expression are,
Which is irrational.
Which is irrational.
Which is rational.
Which is rational.
Which is rational.
Which is irrational.
What is Rational expressions ?
- Rational expressions represent the relationship between two polynomials. It means that the numerator and denominator are both polynomials.
- It is an algebraic expression ratio with an unknown variable, similar to a fraction. We can, however, simplify this type of expression with the aid of a calculator.
- You've probably heard of rational numbers, which are written in the form p/q. In contrast, rational expressions are the ratio of two polynomials.
- To find the root or zero of a polynomial expression, we must first make it equal to zero. To find the zeros of rational functions or expressions, however, only the numerator must be set to zero after the expression has been reduced to its simplest terms.
Learn more about the rational function here:
brainly.com/question/1851758
#SPJ1
Answer:
5/6
Step-by-step explanation:
x > 1
x = 2,3,4,5,6
( quantity of 2,3,4,5,6)/(total)
5/6