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navik [9.2K]
3 years ago
7

Instruction: You must show all of your work bysl setting up the problem using combinatorics and simplifying completely.

Mathematics
1 answer:
MaRussiya [10]3 years ago
5 0
There are 14 marbles in the bag, and we either want to get 0 or 1 cracked one (out of 2 cracked marbles) in 4 draws. Since there are 12 uncracked marbles and 2 cracked ones:
To get 0 cracked marbles, there are 12C4 ways (to draw 4 marbles out of the 12 uncracked ones only). 12C4 = 495 ways
To get 1 cracked marble, we need 3 to be from the 12 uncracked ones, and 1 from the 2 cracked ones. This means there are 12C3 x 2C1 = 440 ways
So the total number of ways is 495 + 440 = 935 ways.
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Simplest form <br> 7/15 - 1/5
Lunna [17]

Answer:

4/15

Step-by-step explanation:

7/15 - 3/15 = 4/15

8 0
3 years ago
Read 2 more answers
What kind of reasoning is kim using? kim notices that 24 = 6 + 18, 63 = 9 + 54, 39 = 12 + 27, and 72 = 9 + 63, so she thinks it
SVETLANKA909090 [29]

Reasonings are divided into three categories: (1) inductive, (2) deductive, and (3) causal reasoning. The type of reasoning that is depicted in the given above is inductive reasoning. This is because Kim was able to derive to a conclusion by citation of different examples. Among the three categories, inductive reasoning is the most commonly used.

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6 0
3 years ago
The volume of a cone is 763.02 cubic inches. The radius and height of the cone are equal. What is the radius of the cone?
Hoochie [10]

Answer:

The radius of the cone is 9cm

Step-by-step explanation:

This problem bothers on the mensuration of solid shapes, a cone

The volume of a cone is expressed as

V=1/3(πr²h)

We were told that the radius r and the height h are equal

I.e r=h

Substituting h=r in the formula we have

V= 1/3(πr²*r)

V =1/3(πr³)

To find the radius r let us substitute our given 763.02cm³ (note we assume unit in cm)

763.02= 1/3(3.142r³)

763.02= (3.142r³)/3

763.02*3=3.142r³

2289.06=3.142r³

r³=2289.06/3.142

r³= 728.54

r= ³√728.54

r= 8.99cm

≈r= 9cm

hope this helps

7 0
2 years ago
If f (x) = -12x + 34 What is the value of f (-2)?
kobusy [5.1K]

Answer:

f(-2)=58

Step-by-step explanation:

f(x)=-12x+34

f(-2)=-12(-2)+34

f(-2)=24+34

f(-2)=58

7 0
2 years ago
What is lcm of 54 and 64
ankoles [38]
The lcm is 8

7×8=56

6×6=64


7 0
2 years ago
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