Explanation:
To find x we need to find the unknown side that connects the two triangles using the Pythagorean theorem:
a² + b² = c² (c is always hypotenuse)
So:
a² + 6² = 9²
a² = 9² - 6²
a² = 81 - 36
a² = 45
a = sqrt45
Now we do the same thing for the other triangle:
x² + 5² = sqrt45²
x² + 25 = 45
x² = 20
x = 2√5 or 4.5...
Answer: The mean and variance of the wavelength distribution for this radiation are 642.5 nm and 75 nm.
Step-by-step explanation:
The mean and variance of a continuous uniform distribution function with parameters m and n is given by :-
Given :
Hence, the mean and variance of the wavelength distribution for this radiation are 642.5 nm and 75 nm.
Answer:
Step-by-step explanation:
Step-1 : Multiply the coefficient of the first term by the constant 1 • -6 = -6
Step-2 : Find two factors of -6 whose sum equals the coefficient of the middle term, which is 2 .
Answer:
Step-by-step explanation:
A = pi r^2....divide both sides by pi
A / pi = r^2....take the square root of both sides, eliminating the ^2
√ A / pi = r
Selling price-store's cost
39-26=13
$13 is the amount added.
To find the % of the markup:
Amount added/store's cost
13/26=1/2
50%