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DedPeter [7]
3 years ago
14

What is the value of the expression 4(x - y) + 2 when x = 7 and y = 1?

Mathematics
2 answers:
Ksju [112]3 years ago
7 0

Answer:

26

Step-by-step explanation:

4(7-1) +2

4(6) + 2

24+ 2

26

lesya [120]3 years ago
3 0

Answer: 26

Step-by-step explanation:

4(x-y)+2

Lets plug in 7 for x and 1 for y

4(7-1)+2=4(6)+2

4*6=24

24+2=26

26 is the answer

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Answer:

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3 times 3 is 9

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2 years ago
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The perimeter of a field is 120 yards. what is the length and width?
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7 0
3 years ago
Please help me answer this
defon

Answer:

It looks like the third one, C

Step-by-step explanation:

Every time c increases by 1, d increases by 2

That means the slope will be 1/2

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Which means that there can only be one answer, C

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3 years ago
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Eric throws a biased coin 10 times. He gets 3 tails. Sue throw the same coin 50 times. She gets 20 tails. Aadi is going to throw
iren2701 [21]

Answer:

(1) The correct option is (A).

(2) The probability that Aadi will get Tails is \frac{2}{5}.

Step-by-step explanation:

It is provided that:

  • Eric throws a biased coin 10 times. He gets 3 tails.
  • Sue throw the same coin 50 times. She gets 20 tails.

The probability of tail in both cases is:

  • P(\text{Tail})=\frac{3}{10}
  • P(\text{Tail})=\frac{20}{50}=\frac{2}{5}

(1)

According to the Central limit theorem, if from an unknown population large samples of sizes n > 30, are selected and the sample proportion for each sample is computed then the sampling distribution of sample proportion follows a Normal distribution.

In this case we need to compute the proportion of tails.

Then according to the Central limit theorem, Sue's estimate is best because she throws it <em>n = </em>50 > 30 times.

Thus, the correct option is (A).

(2)

As explained in the first part that Sue's estimate is best for getting a tail, the probability that Aadi will get Tails when he tosses the coin once is:

P(\text{Tail})=\frac{20}{50}=\frac{2}{5}

Thus, the probability that Aadi will get Tails is \frac{2}{5}.

7 0
3 years ago
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Allushta [10]



Answer should be -1
4 0
3 years ago
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