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
Kobotan [32]
3 years ago
11

3x+6y=36 and -3x-6y=0​

Mathematics
1 answer:
Anastasy [175]3 years ago
4 0

Answer:

No solution

Step-by-step explanation:

3x + 6y  =36

-3x - 6y =0​

------------------add

0 ≠ 36

No solution

You might be interested in
Suppose that 20% of the subscribers of a cable television company watch the shopping channel at least once a week. The cable com
riadik2000 [5.3K]

Answer:

4.01% probability that the cable company will keep the shopping channel.

Step-by-step explanation:

For each subscriber, there are only two possible outcomes. Either they watch the shopping channel at least once a week, or they do not. This means that we can solve this problem using the binomial probability distribution.

However, we are working with samples that are considerably big. So i am going to aproximate this binomial distribution to the normal.

Binomial probability distribution

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

Can be approximated to a normal distribution, using the expected value and the standard deviation.

The expected value of the binomial distribution is:

E(X) = np

The standard deviation of the binomial distribution is:

\sqrt{V(X)} = \sqrt{np(1-p)}

Normal probability distribution

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

When we are approximating a binomial distribution to a normal one, we have that \mu = E(X), \sigma = \sqrt{V(X)}.

In this problem, we have that:

n = 100, p = 0.20

So

E(X) = 100*0.20 = 20

\sqrt{V(X)} = \sqrt{100*0.20*0.80} = 4

The cable company has decided to keep the shopping channel if the sample proportion is greater than 0.27. What is the approximate probability that the cable company will keep the shopping channel, even though the true proportion who watch it is only 0.20?

This probability is 1 subtracted by the pvalue of Z when X = 0.27*100 = 27. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{27 - 20}{4}

Z = 1.75

Z = 1.75 has a pvalue of 0.9599.

So there is a 1-0.9599 = 0.0401 = 4.01% probability that the cable company will keep the shopping channel.

5 0
3 years ago
DO it for 50 it math please do it it due in 1 hour
Leno4ka [110]

Equation: w×0.6p

Explanation: 4.38 dollars for a 7.30 pound watermelon, you need to divide 4.38 by 7.3 to determine the price for each pound. 4.38÷7.3=0.60. W=the watermelons weight and P= watermelons price per pound.

6 0
3 years ago
Question 1
Marina CMI [18]

Answer:

1. plane parallel- ABC

2. segment parallel- DA

3. segment parallel- DE

4. segmney skew- FC

3 0
3 years ago
Translate the phrase into an algebraic expression.<br> 3 more than b
KiRa [710]

Answer:

b+3 or 3+b

Step-by-step explanation:

7 0
2 years ago
If x^3=3 then x^15=?
valina [46]
The answer is 15.
Also if the first is the same the second is obviously the same
5 0
3 years ago
Other questions:
  • Best explained and correct answer gets brainliest!
    6·1 answer
  • Can you give out more than one brainliest?
    6·2 answers
  • Please i need to know what is 6y-8+2y+5
    12·2 answers
  • △ABC is similar to △XYZ by the ​ AA Similarity Postulate ​ . The measure of ∠A is 73º and the measure of ∠C is 43º.
    8·1 answer
  • HELP PLEASE, BRAINLIEST AND 15 POINTS
    6·2 answers
  • 1. Mrs. Ferguson is considering reserving a room at the Abraham Hotel. The Abraham Hotel charges $239 a night. (a) Mrs. Ferguson
    14·2 answers
  • Which is 1/3 + 1/4?<br><br> Plz help
    5·2 answers
  • Help fast plz with that ​
    7·2 answers
  • The frequency table shows a set of data collected by a doctor for adult patients who were diagnosed with a strain of influenza.
    9·2 answers
  • What is (f + g)(x)?<br> f(x) = -3x²<br> g(x) = 4x + 3
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!