Sarah rolls a die. What is the chance of her rolling a 4?!

Mathematics

2 answers:

Mars2501 [29]3 years ago

6 0

Depends on the dice. Are there any choices to this question? (just asking)

Mariulka [41]3 years ago

3 0

depends on the type of dice, some have many sides . how many rolls, how many seconds until it stops rolling, which quantiative set of dice rolls do you have that you use to verify the accuricy of predicitons.

In short, not sure.

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Determine whether the relation is a function: {(6, 1), (8, –3), (6, 7)}.

ICE Princess25 [194]

Hello there! The answer would be the first one, or No. At least one output results in two inputs.

When dealing with functions: you must remember that x does not repeat. So, lets look at the relation given, {(6, 1), (8, –3), (6, 7)}. You can see that x does repeat, so this is not a function. This eliminates second and fourth option choices. Out of the options A and C, A would be your choice since x is the input value and y is the output value, and there are two input values.

Hope his helps and have a great day!

5 0

3 years ago

4x^2-21x-18=0 Find the discriminate

SpyIntel [72]

a = 4, b = -21, c = -18

to keep from getting "mixed up", evaluate the discriminant first ...

b2 - 4ac = (-21)2 - 4(4)(-18) = 729

sqrt(729) = 27

x = (21 +/- 27)/8

x = -3/4, x = 6

since the discriminant is a perfect square, the original quadratic will factor ...