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notsponge [240]

2 years ago

14

1. Thomas has a deck of cards numbered 1-10. What is the probability that he draws an even number, does not replace it and then

draws a 3?

1 answer:

kramer2 years ago

3 0

Answer:

0.0556

Step-by-step explanation:

Probability of even number.

1/2

Probability of a 3 from 9 cards

1/9

Probability or both:

1/2*1/9

0.0556

I'm pretty sure this is right

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WARRIOR [948]

First question is 1:2
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What is 2/5 divided by -1/2 minus 3/2

shutvik [7]

Answer:

$- \frac{23}{10}$

Step-by-step explanation:

$\frac{2}{5} \div \frac{ - 1}{2} - \frac{3}{2}$

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Once each day, Erika tracks the depth of the water in her local creek. Her first nine measurements, in inches, are: 16, 15, 13,

solniwko [45]

Answer:

Median = 13

Step-by-step explanation:

We are given the following data:

16, 15, 13, 12, 17, 14, 11, 9, 11

Formula:

$Median:\\\text{If n is odd, then}\\\\Median = \displaystyle\frac{n+1}{2}th ~term \\\\\text{If n is even, then}\\\\Median = \displaystyle\frac{\frac{n}{2}th~term + (\frac{n}{2}+1)th~term}{2}$

Sorted data: 9, 11, 11, 12, 13, 14, 15, 16, 17

Median =

$=\dfrac{9+1}{2}^{th} = 5^{th}\text{ term} = 13$

Thus, the median of the given data is 13.

4 0

3 years ago

Rewrite each sum as a product of the Gcf of the addends and another number. 15+45

morpeh [17]

15 + 45

GCF = 15

15/15 = 1
45/15 = 3

(15 * 1) + (15 * 3) =
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8 0

3 years ago

2x + 1=4x-3 solve for x

loris [4]

Answer:

x = 2

Step-by-step explanation:

To start, you want to isolate x.

To do so, get all the x terms to one side.

2x + 1 = 4x - 3

Subtract -4x on both sides.

-2x + 1 = -3

Then, subtract 1 on both sides.

-2x = -4

Finally, divide -2 on both sides.

x = 2

3 0

3 years ago