Modular arithmetic is all about finding the remainder from long division (MOD), and the total number of times that a number goes into a division (DIV<span>).</span>
Let X be a random variable representing the mean gray scale of each pixel.
P(110 ≤ X ≤ 140) = P(X < 140) - P(X < 110) = P(z < (140 - 125)/15) - P(z < (110 - 125)/15) = P(z < 1) - P(z < -1) = P(z < 1) - [1 - P(z < 1)] = 2P(z < 1) - 1 = 2(0.84134) - 1 = 1.68268 - 1 = 0.68268
Number of pixels that have gray scale of between 110 and 140 = 0.68268 x 1000000 = 682680 = approximately 680,000
Answer:
x = 59
Step-by-step explanation:
Since the angles of a quadrilateral add up to 360°, simply set the sum of all the angles to 360°:
x + x + (2x + 3) + (2x + 3) = 360
Combine like terms:
2x + 4x + 6 = 360
6x + 6 = 360
Get the x's on one side:
6x = 360 - 6
6x = 354
Solve by dividing by 6:
x = 59
You can write and solve the proportion
The appropriate choice is ...
... a. 426
