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3 years ago

Which digits make 3,71 divisible by 3 a.3 only b.7 only c.1 only d.1,4 and 7

Mathematics

1 answer:

Rzqust [24]3 years ago

8 0

The answer would be 1,4, and 7. if you place each of those into the "3,71_" and then divide them by 3, you'll see that those three number make it divisible by three. its pretty much a guess and check question. you just have to test each answer choice.

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Science is Hayley's favorite class! She especially loves doing experiments. Today, she began

raketka [301]

Answer: the final mass of the solid is 176 grams.

Step-by-step explanation:

The "change" between two quantities, one initial Qi and one final Qf is defined as:

Change = Qf - Qi.

In this case, the quantity is mass, and we know that the initial mass is 260 grams.

And we also know that the change is -84 grams.

Then we have the equation:

Qf - 260 g = -84g

Qf = -84g + 260g = 176g

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3 years ago

A company with n employees publishes an internal calendar, where each day lists the employees having a birthday that day. What i

lutik1710 [3]

Answer: $1-(\frac{364}{365})^n$

Step-by-step explanation:

Binomial probability formula :-

$P(x)=^nC_xp^x(1-p)^x$ , where P(x) is the probability of getting success in x trials, n is the total number of trials and p is the probability of getting success in each trial.

We assume that the total number of days in a particular year are 365.

Then , the probability for each employee to have birthday on a certain day :

$p=\dfrac{1}{365}$

Given : The number of employee in the company = n

Then, the probability there is at least one day in a year when nobody has a birthday is given by :-

$P(x\geq1)=1-P(x$

Hence, the probability there is at least one day in a year when nobody has a birthday = $1-(\frac{364}{365})^n$

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3 years ago

The line graph shown below is of the amount of money astudent earns at a part time job, per hour. What is the students wage rate

xeze [42]

1) The two lines are perpendicular. (Correct choice: True)

2) The slope of the linear function is $ 10 per hour. (Correct choice: A)

<h3>How to analyze and interpret linear functions</h3>

Herein we must understand and analyze linear functions to find all required information from two exercises. The first exercise asks us to prove if the two lines seen are perpendicular and the second exercise asks us to calculate and interpret the slope of the linear function. Now we proceed to resolve each point:

Exercise 1

If the two lines are perpendicular, then the product of the two slopes must be equal to - 1. The value of slope can be found by secant line formula:

m · m' = - 1

[(1 - 2) / [0 - (-1)]] · [[-1 - (- 2)] / (1 - 0)]

(- 1 / 1) · (1 / 1)

- 1

The two lines are perpendicular. (Correct choice: True)

Exercise 2

In this part we must determine the rate of change of wage in time, in monetary units per time, which can be found by again by the secant line formula:

m = ($ 10 - $ 0) / (1 h - 0 h)

m = $ 10 per hour

The slope of the linear function is $ 10 per hour. (Correct choice: A)

To learn more on linear functions: brainly.com/question/21107621

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2 years ago

Consider he following expression.

Feliz [49]

What a mysterious expression you have there!

7 0

3 years ago

HELP PLEASE, I REALLY DONT UNDERSTAND THIS!

zubka84 [21]

Answer: Since 3−5+2=0, then 2

is the additive inverse of 3−5 is 2

Since 5−3−2=0, then −2is the additive inverse of 5−3. is -2

Step-by-step explanation: additive inverse

The additive inverse of any number

is the number that gives zero when added to

. Example: the additive inverse of

5 is −5.

6 0

3 years ago