1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MA_775_DIABLO [31]
3 years ago
10

Is 2 rational ? And why

Mathematics
2 answers:
zubka84 [21]3 years ago
6 0
Yes, because it can be expressed as the quotient or fraction of two integers you
SVEN [57.7K]3 years ago
3 0
2 is a rational number because it has the ability to be expressed through fraction or quotient
You might be interested in
Brooklyn has a goal to save $8,000 to buy a new entertainment system. In order to meet that goal, she deposited $4,132.79 into a
densk [106]
To see how much interest she'll get after a quarter:

$4132.79 + ($4132.79 × 0.048) = $4331.16

After two quarters:
$4331.16 + ($4331.16 × 0.048) = $4359.06

You can keep going until eventually reaching $8000 then see how many quarters has passed. That's a lot of calculator work!

There's another way that uses less calculation, but more algebra. I call it the exponential formula method! There's this general formula for stuff that increases exponentially, like virus, population, and MONEY:

m= d {e}^{tc}

M is money, d is deposit, t is time taken, and c is just some unknown constant related to the interest rate. There's also the natural logarithm form of this equation, which will come in handy later:

ln( \frac{m}{d} ) = tc

Alright first we gotta find that constant c for this equation to be useful! Let's plug in stuff we know.

ln( \frac{4331.16}{4132.79} ) = (0.25)c

We know how much she'll have after one quarter (0.25 years), and we know how much she deposited initially.

After pressing some buttons on the calculator we'll find that c = 0.1875.

Great! Now we can use that formula to find how many years (t) it'll take to reach M=$8000. To save time I'm going to use the natural log form:

ln( \frac{8000}{4132.79} ) = t(0.1875)

That will give us t = 3.522 which means it'll take approximately 3.5 years for her deposit to reach $8000!
5 0
3 years ago
Read 2 more answers
17. Fruit drink A consists of 6% pure fruit juice and drink B consists of 15% pure fruit
grigory [225]

Answer: drink A should be mix in all while B should be 3% only

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
ANSWER PLEASE *50 POINTS*
zvonat [6]

If a football player runs 5/6 of a mile every 3/4th of a hour, that means every 1/4th a hour he runs 1.5/6th of a mile.

That means every 15 minutes the football player runs .2 of a mile. That means that every hour he runs :

0.8 of a mile!

3 0
3 years ago
You bought a blu-ray that cost $28.68 before tax. How much did you have to pay once the 7% sales tax was factored in?
xxTIMURxx [149]

Answer:

You had to pay $30.69 after the sales tax factored in.

Step-by-step explanation:

First step is to find 7% of $28.68.

The answer to that is the sales tax, therefore making the sales tax $2.01.

Finally, you have to add $2.01 to $28.68 to get a total of $30.69, your final answer.

8 0
3 years ago
What are the amplitude, period, and phase shift of the given function? f(t)=-2/3 cos (3t-3pi)
dybincka [34]

Answer:

amplitude; \frac{2}{3}

Phase shift; \pi units right

Period;\frac{2\pi}{3}

Step-by-step explanation:

The given function is

y=-\frac{2}{3}\cos(3t-3\pi)

This function is of the form;

y=A\sin (Bt+C)

The period is given by:

|A|=|-\frac{2}{3}|= \frac{2}{3}

The period is given by:

T=\frac{2\pi}{|B|}= \frac{2\pi}{|3|}=\frac{2\pi}{3}

The phase shift is given by;

\frac{C}{B}=\frac{-\3pi}{3}=- \pi or \pi units right.

4 0
3 years ago
Other questions:
  • What is 2/3 of 7/8?<br> What is 2/3 of 7/8?
    9·2 answers
  • 1/4 + (-3/4)= <br> -4 1/2 + 2= <br> -8+ (-1 1/8) =
    7·1 answer
  • F(x)=-x^2+8x-20 find the min/max value
    5·1 answer
  • Determine the intercepts of the line. − 6 x + 3 y = − 7
    8·1 answer
  • Evaluate. 5/8−(14)2= ________
    15·1 answer
  • What value of g makes the equation true? –11 –3 3 11
    5·1 answer
  • Which regular polygon has a minimum rotation of 60 degrees to carry it onto itself?
    5·1 answer
  • Calculate the estimate of the mean height of the students in cm and explain your answer
    10·1 answer
  • Find the equation of the line passing
    15·1 answer
  • What is the ratio of the surface areas of the similar square pyramids below?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!