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Ira Lisetskai [31]
2 years ago
5

grace and her friends were to roll the two dice 100 times, how many of the 100 times could they expect to roll the same number o

n each die? (In other words, the outcome would be 1,1 or 2,2 or 3,3 or 4,4.)
Mathematics
1 answer:
LenaWriter [7]2 years ago
4 0

Answer:

The probability of both dice having the same number is 636, as there are 36 different outcomes, 6 of which have two of the same number, i.e. (1,1),(2,2),....

The expected number of rolls of this type in 100 pairs of dice rolls is 100∗636

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A line passes through the point (–6, –3) and has a slope of 2/3 . Which point is on the same line?
navik [9.2K]

Answer:

The point (0, 1) represents the y-intercept.

Hence, the y-intercept (0, 1) is on the same line.

Step-by-step explanation:

We know that the slope-intercept form of the line equation

y = mx+b

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Given

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Using the point-slope form

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In our case:

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substituting the values m = 2/3 and the point (-6, -3)  in the point-slope form

y-y_1=m\left(x-x_1\right)

y-\left(-3\right)=\frac{2}{3}\left(x-\left(-6\right)\right)

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y+3-3=\frac{2}{3}\left(x+6\right)-3

y=\frac{2}{3}x+4-3

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Here the slope = m = 2/3

Y-intercept b = 1

We know that the value of y-intercept can be determined by setting x = 0, and determining the corresponding value of y.

Given the line

y=\frac{2}{3}x+1

at x = 0, y = 1

Thus, the point (0, 1) represents the y-intercept.

Hence, the y-intercept (0, 1) is on the same line.

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