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3 years ago

A bag has 2 blue marbles, 3 red marbles, and 5 white marbles. Which event have a probability greater than 1/5

Mathematics

2 answers:

klasskru [66]3 years ago

7 0

Answer:

A and C

Hope This Helps! Have A Nice Day!!

Sonja [21]3 years ago

3 0

Answer:

choosing 1 red marble

choosing 1 white marble, replacing it, and choosing another white marble

and choosing 1 white marble

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{[14-2×3]-[18÷(12-3)]}+{42-11×3+[(65-9×5)+3]}

natali 33 [55]

Use Bidmas, solve all the inner brackets (), with first division, then multiplication then addition then subtraction

5 0

3 years ago

B/5>-1<br> Solve the inequality. Graph and check the solution.

Usimov [2.4K]

Answer:

b>-5

Step-by-step explanation:

$\frac{b}{5} > - 1$

Multiply by 5 to isolate b.

$b > - 5$

If you graph this on a line, it would be a hollow point facing the right, since it's any number greater than five, not including 5.

If you put any number greater than -5, you'll output greater than - 1.

4 0

2 years ago

Solve these equations for the variable.<br> (4p-4)(13p+27)

kondaur [170]

Answer:

p is approximately equal to 1.125, -1.925

Step-by-step explanation:

We can solve this first by expanding, giving us a quadratic equation in the usual ax² + bx + c format, then solving that for p:

(4p - 4)(13p + 27) = 0

52p² + 108p - 52p - 108 = 0

52p² + 52p - 108 = 0

13p² + 13p - 27 = 0

13p² + 13p = 27

p² + p = 27 / 13

p² + p + 1/4 = 27/13 + 1/4

(p + 1/2)² = 108 / 52 + 13 / 52

(p + 1/2)² = 121 / 52

p + 1/2 = ± √(121 / 52)

p = -1/2 ± 11√(1/13) / 2

At that point we can simply plug those numbers into a calculator and solve it:

p ≈ 1.125, -1.925

8 0

3 years ago

How do i turn reapeating decimals into fractions?

inysia [295]

Easy example that shows $0.999\ldots=1$ :

Let $x=0.999\ldots=0.\overline9$ .

Then $10x=9.999\ldots=9.\overline9$ .

So $10x-x=9.\overline9-0.\overline9$ , or $9x=9$ , and so $x=1$ .

The basic idea is to find the period of the repeating decimal, move the $n$ digits belonging to one period over to the left of the decimal point by multiplying by $10^n$ , then subtract the original repeating decimal from this new number, and finally divide by $10^n-1$ .

A slightly more complicated example:

Let $x=0.142857142857142857\ldots=0.\overline{142857}$ .

Then $10^6x=142857.\overline{142857}$ .

Then $10^6x-x=142857.\overline{142857}-0.\overline{142857}$ , or

$999999x=142857\implies x=\dfrac{142857}{999999}=\dfrac17$

6 0

2 years ago

The question is number 16

stellarik [79]

18×7+5 is your answer. The answer for the problem is 18×7=126.

126+5=131.

3 0

3 years ago