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4 years ago

(5 Points per question)

Mathematics

1 answer:

GenaCL600 [577]4 years ago

7 0

2. Your number is a negative integer, so belongs to the sets ...

rational numbers
integers

Natural numbers are positive integers, also called "counting numbers," 1, 2, 3, and so on. Whole numbers are the natural numbers and zero. Irrational numbers are numbers that cannot be expressed as the ratio of an integer to a positive or negative natural number. Written in decimal, irrational numbers have a non-repeating fractional part of infinite length.

3. The phrase "6 times the difference of b and p" can be written as

... B.) 6(b-p)

4. 5(14 -2)²/2

... = 5·12²/2

... = 5·144/2

... = 720/2

... = 360

The appropriate choice is ...

... D.) 360

5. Put the values where the variables are, then do the arithmetic.

... u +xy = 18 +10·8 = 18 +80 = 98

The appropriate choice is ...

... C.) 98

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Aimi is making Valentine’s Day cards for everyone in her class. She plans to use a whole sheet of paper for each of her 6 closes

DaniilM [7]

34 - 6 = 28
28 x 8 = 224

After making the 6 whole sheet of paper cards for her closest friends Aimi will have 28 pieces of paper left.

Since she wants to use 1/8 of a sheet per valentine (think of it as one piece of paper can make 8 valentines) you can do 28 pieces of paper multiplied by 8 which gives you 224 valentines.

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3 years ago

I had $88. then i earned $29 walking dogs. after I spent money for concert tickets, I have $74 remaining. estimate how much mone

klemol [59]

Answer:

$43

Step-by-step explanation:

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117-74=43

You Spent $43 For The Concert.

7 0

4 years ago

Read 2 more answers

A computer program has a bug that causes it to fail once in every thousand runs, on average. In an effort to find the bug, indep

Serhud [2]

Answer:

The standard deviation of the number of runs required is 2447.26

Step-by-step explanation:

For each run, there are only two possible outcomes. Either the program fails, or it does not. The probability of the computer failing during a run is independent of other runs. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

The standard deviation for the expected number of trials for r sucesses is:

$\sqrt{V(X)} = \sqrt{\frac{r(1-p)}{p^{2}}}$

A computer program has a bug that causes it to fail once in every thousand runs, on average.

This means that $p = \frac{1}{1000} = 0.001$

In an effort to find the bug, independent runs of the program will be made until the program has failed six times. What is the standard deviation of the number of runs required?

This means that r = 6. So

$\sqrt{V(X)} = \sqrt{\frac{6*0.999}{(0.001)^{2}}} = 2447.26$