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wolverine [178]
2 years ago
5

A bag has 3 red rocks, 4 green rocks, 3 blue rocks, 3 speckled rocks,

Mathematics
2 answers:
yulyashka [42]2 years ago
8 0

Answer: 12/17

Step-by-step explanation:

This is an example of probability with replacement

n(red) = 3

n(green) = 4

n(blue) = 3

n(speckled) = 3

n(yellow) = 4

Total = 17

The probability of getting a green = number of green / total number

That is

p(green) = 4/17

Also

p(red) = 3/17

" and " in probability means multiplication , therefore:

the probability of getting a green and then a red will be

4/17 x 3/17 = 12/17

jolli1 [7]2 years ago
6 0

Answer:

3/17 or 17.64%

Step-by-step explanation:

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Alisiya [41]

Answer:

Base:3

Height:5

Area= 15

Step-by-step explanation:

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3x5=15

3 0
3 years ago
Please Please help asap!!! Thank you
natali 33 [55]

Step-by-step explanation:

well, the starting equation and the target format have been given.

let's do the multiplications and compare the target with the starting information.

from there we see what is different or missing.

x² + 14x + 13 = 0

and

(x - p)² = q

x² - 2px + p² = q

x² - 2px + (p² - q) = 0

now let's compare the different parts :

x² = x²

-2px = 14x

-2p = 14

p = -7

p² - q = 13

-7² - q = 13

49 - q = 13

36 - q = 0

q = 36

so, the square (x - p)² = (x + 7)² is completed when

x² + 14x + 49 = 0

but we have only "+ 13". so we need to add 36 to get 49. but we need to do it on both sides, to keep the equation true :

x² + 14x + 13 + 36 = 36

x² + 14x + 49 = 36

(x + 7)² = 36

just as we calculated already above.

and now this can be solved by pulling the square root on both sides (a quadratic equation has always 2 solutions)

x + 7 = ±6

x1 = 6 - 7 = -1

x2 = -6 - 7 = -13

3 0
1 year ago
Given log1712 log1715=log17xlog1712 log1715=log17x what is the value of x?
Charra [1.4K]
Log1715=Log17X X=Log1715/Log17 X=2,6
3 0
3 years ago
Cary is 9 years older than Dan. In 7 years, the sum of their ages will equal 93. Find both of their
a_sh-v [17]
Cary's age is 9 years MORE than Dan's age.
Cary's age is Dan's age, but with 9 more years added to that.
Here is how we can express that,
\rm C=D+9
In 7 years, Cary will be C+7 years old,
and Dan will be D+7 years old.
In 7 years, the sum of their ages,
(C+7) and (D+7) will equal 93.

Here is how we can express that:
\rm (C+7)+(D+7)=93

You have a system of two equations involving two unknowns. You have a couple of nice options here. You can apply substitution or elimination to complete the problem.
3 0
2 years ago
binh is choosing from 6 youtube videos and and nine online role-playing games to link to his Myspace Page. If he randomly picks
mina [271]
56/143
Using (6C3 x 9C4)/ 15C7 to find probability of 3 out of 6 youtube and 4 out of 6 online divided by  7 out of 15 total
4 0
2 years ago
Read 2 more answers
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