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Viktor [21]
2 years ago
15

Calculate the average atomic mass of gold is 50% is gold 197 and 50% is gold 198

Mathematics
1 answer:
xxTIMURxx [149]2 years ago
3 0
The answer is 74.125 average you add all them up divide by 2
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Suppose your opening checking account balance is $124.53. After you
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Step-by-step explanation:

6 0
3 years ago
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Someone please help me out please!!!!
Tom [10]

Given:

A committee of 6 members is to be chose from the 100 members of the U.S. senate.

To find:

The number of ways to form a committee.

Solution:

We have,

Total number of members = 100

Number of members needs to selected of committee = 6

Number of ways to select r items from total n items is

^nC_r=\dfrac{n!}{r!(n-r)!}

Number of ways to select 6 members from total 100 members is

^{100}C_6=\dfrac{100!}{6!(100-6)!}

^{100}C_6=\dfrac{100\times 99\times 98\times 97\times 96\times 95\times 94!}{6\times 5\times 4\times 3\times 2\times 1\times 94!}

^{100}C_6=\dfrac{100\times 99\times 98\times 97\times 96\times 95}{6\times 5\times 4\times 3\times 2\times 1}

^{100}C_6=1192052400

Therefore, the total number of ways to form a committee is ^{100}C_6, i.e., equal to 1192052400.

4 0
3 years ago
Solve for z.<br> 25z = 175
LUCKY_DIMON [66]

Answer: z = 7

Step-by-step explanation:

6 0
3 years ago
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