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4 years ago

Eben rolls two standard number cubes 36 times. Predict how many times he will roll a sum of 4.

1 answer:

8 0

Lets make a list
assuming they have 2 cubes with 1-6 on them
combos are
1,1
1,2
1,3
1,4
1,5
1,6
2,1
2,2
2,3
2,4
2,5
2,6
3,1
3,2
3,3
3,4
3,5
3,6
4,1
4,2
4,3
4,4
4,5
4,6
5,1
5,2
5,3
5,4
5,5
5,6
6,1
6,2
6,3
6,4
6,5
6,6

out of all 36 times, only 3 times did the sum equal 4
3 times he will roll a 4

ALL CREDIT GOES TO ANOTHER ANSWER THIS IS NOT MINE!

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Find the equation of the line that is perpendicular to 4 x + 3 y = 5 and goes through the point (3, –3)

Allisa [31]

Step-by-step explanation:

the line equation

y = ax + b

gives us slope (a) and y-interception (b).

4x + 3y = 5

3y = -4x + 5

y = -4/3 × x + 5/3

the slope of the original line is therefore -4/3.

a perpendicular slope flips x and y upside-down and flips the sign.

so, the perpendicular slope of -4/3 is 3/4.

the desired line looks like

y = 3/4 × x + b

b we get by using the given point and its coordinates :

-3 = 3/4 × 3 + b = 9/4 + b

-12/4 = 9/4 + b

b = -21/4

so our full line equation is

y = 3/4 × x - 21/4

4y = 3x - 21

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2 years ago

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3 years ago

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3 years ago

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UNO [17]

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Step-by-step explanation:

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3 years ago

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Mumz [18]

Answer:

n = 5

Step-by-step explanation:

Coordinate of P = (n,3)

R is on y-axis & the y-coordinate of P & R are equal. So coordinate of R = (3,0)

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Using distance formula,

Distance between P & Q =

$\sqrt{ {( n - n}) ^{2} + {( 3- ( - 2) })^{2} }$

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$\sqrt{ {(n - 0)}^{2} + {(3 - 3)}^{2} }$

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But in question it is given that distance between P & Q is equal to the distance between P & R. So,

$n = 5$

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3 years ago