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
coldgirl [10]
3 years ago
8

|r|=-2 solve the equation and graph the solution if possible

Mathematics
1 answer:
S_A_V [24]3 years ago
6 0
That bracket symbol, with an r in it, means "the absolute value of r". 
So r's absolute value is -2 meaning r is two units from zero
r= 2
You might be interested in
SOMEONE PLEASE HELP ME ASAP PLEASE!!​
e-lub [12.9K]

Answer:

hope it will help u .....

3 0
2 years ago
Read 2 more answers
Round 6.071981 to 3 significant figures
natita [175]

Answer:

6.071

Step-by-step explanation:

All non zero numbers are significant irrespective of where decimal point is

If zero is between to numbers it is significant irrespective of where decimal point is

5 0
3 years ago
Rewrite in simplest radical form! Show your work.
vazorg [7]

x^{\frac{1}{\frac{-3}{6} }}

First, let's deal with the fraction in the denominator of the exponent. Multiply the top and bottom of the exponent by 6.

x^{\frac{6}{-3} }

Now that the fraction in the denominator is taken care of, we can reduce the denominator.

x^{-2}. Some professors might accept this as simplest form, but others might ask you to get rid of the negative.

x^{-2} = \frac{1}{x^{2} }

7 0
3 years ago
Read 2 more answers
Whats 4 divided by 10
Mrac [35]
\frac{4}{10} = \frac{2}{5} = 0.4
6 0
3 years ago
Read 2 more answers
The Center for Medicare and Medical Services reported that there were 295,000 appeals for hospitalization and other Part A Medic
Ymorist [56]

Answer:

(a) 0.00605

(b) 0.0403

(c) 0.9536

(d) 0.98809

Step-by-step explanation:

We are given that 40% of first-round appeals were successful (The Wall Street Journal, October 22, 2012) and suppose ten first-round appeals have just been received by a Medicare appeals office.

This situation can be represented through Binomial distribution as;

P(X=r)= \binom{n}{r}p^{r}(1-p)^{n-r} ; x = 0,1,2,3,....

where,  n = number of trials (samples) taken = 10

            r = number of success

            p = probability of success which in our question is % of first-round

                   appeals that were successful, i.e.; 40%

So, here X ~ Binom(n=10,p=0.40)

(a) Probability that none of the appeals will be successful = P(X = 0)

     P(X = 0) = \binom{10}{0}0.40^{0}(1-0.40)^{10-0}

                   = 1*0.6^{10} = 0.00605

(b) Probability that exactly one of the appeals will be successful = P(X = 1)

     P(X = 1) = \binom{10}{1}0.40^{1}(1-0.40)^{10-1}

                  = 10*0.4^{1} *0.6^{10-1} = 0.0403

(c) Probability that at least two of the appeals will be successful = P(X>=2)

    P(X >= 2) = 1 - P(X = 0) - P(X = 1)

                     = 1 - \binom{10}{0}0.40^{0}(1-0.40)^{10-0} - \binom{10}{1}0.40^{1}(1-0.40)^{10-1}

                     = 1 - 0.00605 - 0.0403 = 0.9536

(d) Probability that more than half of the appeals will be successful =             P(X > 0.5)

  For this probability we will convert our distribution into normal such that;

   X ~ N(\mu = n*p=4,\sigma^{2}= n*p*q = 2.4)

  and standard normal z has distribution as;

      Z = \frac{X-\mu}{\sigma} ~ N(0,1)

  P(X > 0.5) = P( \frac{X-\mu}{\sigma} > \frac{0.5-4}{\sqrt{2.4} } ) = P(Z > -2.26) = P(Z < 2.26) = 0.98809

3 0
3 years ago
Other questions:
  • Plzzzz need help on top one
    12·2 answers
  • Select the correct answer from each drop-down menu. f(x) = x2 − 8x + 15 g(x) = x − 3 h(x) = f(x) ÷g(x)
    15·2 answers
  • What is the solution to |x + 2| 3 or x -1 or x &lt; -3
    14·1 answer
  • S m a r t p e o p l e o n l y<br> please help me!
    9·2 answers
  • Marsha swam 400 meters in 6<br> minutes and 12 seconds. Convert that time to minutes.
    8·1 answer
  • During hibernation, a garter snake’s body temperature never goes below 3 °C. Write an inequality that represents this situation.
    11·1 answer
  • *Pop Quiz*
    7·1 answer
  • PLEASE HELP!! WILL GIVE BRAINLIEST!!!
    15·1 answer
  • Lamar works as a tutor for $12 an hour and as a waiter for $14 an hour. This month, he worked a combined total of 100 hours at h
    14·1 answer
  • Please help <br> What is x=
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!