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Ludmilka [50]
3 years ago
10

A container has 14 yellow chips, 10 blue chips and 12 red chips in it. One chip is randomly chosen from the container, and then

a second chip is randomly chosen after replacing the first chip. What is the probability that both chips are red?
Mathematics
1 answer:
Ne4ueva [31]3 years ago
8 0
The first probability would be 12/36 because there is a total of 36 chips, and twelve are red (the numerator). IF you reduce this fraction to simplest form, then it would be 1/3.

The second probability would also be 1/3, because the red chip was put back so there are still 36 chips to pick from.

Then, the last step is to multiply 1/3 x 1/3 which would give you 1/9.
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Can somone pls help me with this I have a C- in math and I really need help also a like show work on each one plsss
Lady bird [3.3K]

Answer:

1. \frac{3}{8}

2. \frac{1}{4}

3a. -\frac{1}{4}

3b. 3

3c. -\frac{4}{5}

4. m = \frac{y_1 - y_2}{x_1-x_2}\\

Step-by-step explanation:

1.

Rises 6 inches for every horizontal change of 16 inches

Slope = rise/run

Slope = 6/16

Slope = 3/8

2.

Rises 3 feet for every horizontal change of 12 feet

Slope = rise/run

Slope = 3/12

Slope = 1/4

3a.

m = \frac{y_1 - y_2}{x_1-x_2}

m = \frac{3-2}{-2-2}

m = \frac{1}{-4}

m = -\frac{1}{4}

3b.

m = \frac{y_1 - y_2}{x_1-x_2}\\

m = \frac{-1 - 2}{-1-0}

m = \frac{-3}{-1}

m = 3

3c.

m = \frac{y_1 - y_2}{x_1-x_2}\\

m = \frac{1 - (-3)}{-1-4}\\

m = \frac{4}{-5}\\

m = -\frac{4}{5}

4.

m = \frac{y_1 - y_2}{x_1-x_2}\\

7 0
3 years ago
Someone give me answers & an explanation!
Darina [25.2K]

Answer:

all work is pictured and shown

7 0
3 years ago
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Factor 2x2 - 9x - 11.
tester [92]
Since 2 and 11 are prime we have
(2x 1)(1x 11) or
(2x 11)(1x 1)
we just need to figure out the signs

remember
(ax+b)(cx+d)=acx^2+bcx+adx+bd
the middle term coeficient is bc+ad
so
2x times 11=22x
1x times 1=x
there is not way to add or subtract 22x and x to get -9x

1st one is wrong

(2x 11)(x 1)

2x times  1=2x
11 times x=11x
11x-2x=9x

the 2x or the 1 has to  have the negative

(2x+11)(x-1)
6 0
4 years ago
Find the length of the diagonal for a square that is 6 cm. by 6 cm. Leave answer in simple radical form, if necessary.
dexar [7]

Answer:

6\sqrt{2}

Step-by-step explanation:

let the diagonal be d

using the pythagoras theorem,

6^{2} + 6^{2} = d^{2}

d=\sqrt{72}

which in radical form is

6\sqrt{2}

4 0
3 years ago
Help please will give brainliest!!!!
Crazy boy [7]
9 cm
Explanation:
15 squared - 12 squared = the missing side squared.
225-144=81
The square root of 81 is 9
7 0
3 years ago
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