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hodyreva [135]
3 years ago
12

A box contains cards numbered from 1 to 100 . find the probability of getting a prime .​

Mathematics
1 answer:
notsponge [240]3 years ago
7 0
\boxed{\mathbf{Probability=\frac{Favourable\: Outcomes}{Total\: Outcomes}}}

Prime Number Between 1 and 100.

=2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, and 97.

Total Prime Number=25

Favourable Outcomes=25

Total Number=100

\boxed{\mathbf{Probability (Prime)=\frac{\cancel{25}}{\cancel{100}}}}

\boxed{\mathbf{Probability (Prime)=\frac{1}{4}}}
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The answer would be 3.8.

So, to get 3 to 4, you would have to multiply 3 by something to get to 4. So you would divide 4 by 3 and get 1.3. So then you would divide 5 by 1.3 to solve for k, since k times 1.3 equals 5.

5 ÷ 1.3 = 3.8.

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2 years ago
Which is the best approximation of the solutions to the system of equations graphed below?
Neko [114]

According to the direct inspection, we conclude that the best approximation of the two solutions to the system of <em>quadratic</em> equations are (x₁, y₁) = (- 1, 0) and (x₂, y₂) = (1, 2.5). (Correct choice: C)

<h3>What is the solution of a nonlinear system formed by two quadratic equations?</h3>

Herein we have two parabolae, that is, polynomials of the form a · x² + b · x + c, that pass through each other twice according to the image attached to this question. We need to estimate the location of the points by visual inspection on the <em>Cartesian</em> plane.

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To learn more on quadratic equations: brainly.com/question/17177510

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natka813 [3]
PH = - log [H+]
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5 0
3 years ago
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