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andre [41]
4 years ago
13

HELP PLEASE!!!

Mathematics
1 answer:
Hitman42 [59]4 years ago
3 0

Answer:

1. false

2. 17 times

Step-by-step explanation:

The sum of all the probabilities of outcomes of an event is equal to 1

2.  A die has  1,2,3,4,5,6

P(4) = number of 4's/ total numbers

       = 1/6

Multiply the number of roll's by the probability of getting a 4

100 *1/6 = 50/3 = 16 2/3

This is approximately 17

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3 years ago
Determine the value of x.
Akimi4 [234]

Answer:   \frac{10}{\sqrt{3}}

This is equivalent to \frac{10\sqrt{3}}{3}

======================================================

Explanation:

To get the first value mentioned above, we simply divide the long leg (10) over the square root of 3.

This is due to the fact that if x is the short leg, then x*sqrt(3) is the long leg. We go in reverse of this process to go from long leg to short leg.

The expression \frac{10}{\sqrt{3}} is the same as \frac{10\sqrt{3}}{3} after we multiply top and bottom by sqrt(3) to rationalize the denominator.

Side notes:

  • This entire process only applies to 30-60-90 triangles.
  • The hypotenuse of a 30-60-90 triangle is twice as long as the short leg, so the hypotenuse is 2x = 2*\frac{10\sqrt{3}}{3} = \frac{20\sqrt{3}}{3}  units long.
  • You could use the tangent ratio to help isolate x. You would either say tan(30) = x/10 or tan(60) = 10/x as the first equation to set up.
8 0
3 years ago
What is 5√ ? Place a dot on the number line at the best approximation
Simora [160]
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Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
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