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Ray Of Light [21]
2 years ago
10

YOU BE THE TEACHER Your friend solves the equation shown. Is your friend correct? -4(2n-3) = 12 - On -Bn+ 12 = 12-8n -On=-On O=0

The solution is n=0. O yes no Explain your reasoning. (please help me this is my third time posting this)​

Mathematics
2 answers:
Travka [436]2 years ago
5 0
Yes, my friend solved it correctly. But when n= 0, that means any number can be put in place of n, and the math will be correct.
Gnesinka [82]2 years ago
4 0

Answer:

the firend is wrong  . because -4*2=-8n than -4*-3=12 than the -8 you have to +8

Step-by-step explanation:

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A certain lot consisting of ten items has three defective items and seven nondefective items. How many possible subsets of 2 ite
Charra [1.4K]

Answer:

45

Step-by-step explanation:

The order in which the items are chosen is not important. So we use the combinations formula to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

How many possible subsets of 2 items can be chosen from this lot?

Combinations of 2 from a set of 10. So

C_{10,2} = \frac{10!}{2!(10-2)!} = 45

4 0
2 years ago
The diagonals of a Rhombus are 2Dm and 3M. What’s is the area of the Rhombus??
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Answer:

336m^{2}

Step-by-step explanation:

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7 0
3 years ago
Daniel saves 30% of every paycheck. his paycheck last week was 560.
Brut [27]

Answer: if your asking how much he saved then the answer is $168

Step-by-step explanation:

5 0
3 years ago
Jennifer makes 45 blueberry muffins using 6 cups of flour. What is the ratio of cups of flour to blueberry muffins?\
likoan [24]

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Step-by-step explanation:

7 0
2 years ago
What is the length of the side labeled x cm?
UkoKoshka [18]
When we know 2 angles and one side, we use the Law of Sines.
First we need to find that third angle.
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The Law of Sines states that

side a / Sine (A) = side x / Sine (X)
14 / Sine (77) = side x / Sine (41)

14 * Sine (41) / Sine (77) = side x

side x = 14 * 0.65606 / 0.97437
<span>side x = 9.18484 / 0.97437
</span>
<span> <span> <span> side x = 9.4264396482 </span> </span> </span> 









5 0
3 years ago
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