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4 years ago

What’s the probability of drawing a jack on the first draw and a 3 on the second draw

Mathematics

1 answer:

faust18 [17]4 years ago

3 0

Answer:

jgvi hhvh ihvyv

Step-by-step explanation:

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Calculate the number of ways to form a set of three distinct items such that no two of the selected items are in the same row or

Eddi Din [679]

Answer:

1200

Explanation:

Order does not matter, if we said xyz order, it would still not make a difference if it was zyx or yzx hence we use the combination formula:

nCr = n! / r! * (n - r)!

where n= total number of items

r= number of items chosen at a time

Combinations are used when the order of events do not matter in calculating the outcome.

We calculate using the formula:

(30×20×12)÷3!=1200

There are therefore 1200 ways for the three distinct items to not be in same row or column

8 0

3 years ago

Help i need to ppooooppp

Daniel [21]

Answer: b

Step-by-step explanation: There was the same question on brainly and they said that the submarine sandwich one was right.

5 0

3 years ago

Suppose a railroad rail is 3 kilometers and it expands on a hot day by 15 centimeters in length. Approximately how many meters w

earnstyle [38]

Answer:

Answer: 13.4 m

Step-by-step explanation:

For small angles, x, in radians,

tan(x) ≈ sin(x) = x

Use this to create an approximate diagram for the problem as shown in the figure below.

The actual deflected shape is parabolic, but it is approximated by an isosceles triangle with small equal angles.

The extend length is 3 km + 12 cm, which is

3000 + 0.12 = 3000.12 m

Half of the extended length is 1500.06 m

Let h+ the rise of the center of the rail above ground.

From the Pythagorean theorem, obtain

h² + 1500² = 1500.6²

h² = 1500.06² - 1500² = 180.004

h = 13.4 m, which is about 0.9% of the original length.

Read more on Brainly.com - brainly.com/question/5596356#readmore

6 0

3 years ago

High Construction Company distributed 8% of its total profit, an amount equal to $5500 in

makvit [3.9K]

Given :

High Construction Company distributed 8% of its total profit, an amount equal to $5500 in bonus this year.

To Find :

The total profit .

Solution :

Let , total profit be x .

It is given that 8 % of the total profit is equal to $5500 .

So ,

$\dfrac{8x}{100}=5500\\\\x=\dfrac{5500\times 100}{8}\\\\x=\$\ 68750$

Therefore , total profit is $68750 .

Hence , this is the required solution .

4 0

3 years ago

Simplify 11 to the power of negative 4 over 11 to the power of 8

AlekseyPX

Answer:

1. 1 over 11 to the power of 12

Step-by-step explanation:

$\huge \frac{ {(11)}^{ - 4} }{ {(11)}^{8} } \\ \\ \huge = \frac{ 1}{ {(11)}^{8 + 4} } \\ \\\huge = \frac{ 1}{ {(11)}^{12} }$

7 0

3 years ago