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
Rus_ich [418]
3 years ago
14

Solve for y, show your stepsy = x(2y - 3)

Mathematics
1 answer:
Xelga [282]3 years ago
3 0

Answer:

y=\frac{-3x}{-2x+1}

Step-by-step explanation:

You might be interested in
In a game,two cards are drawn,and then multiplied.The winner is the person with the largest product.Sofia had -8 and 4,Luke had
Maksim231197 [3]

Answer:

Step-by-step explanation:

4 0
3 years ago
Please help asap 50 pts
goldenfox [79]
Is B (x=2) because y=5x^2 then x=2 then 2^2 because x^2 and it comes out 4.then 5x4=20 then 10 is wrong because it's right 20
7 0
3 years ago
Read 2 more answers
What is the equivalent of pi over 6 radians in degrees?
ra1l [238]

To find the answer to this problem, you can use the unit circle to see that pi over 6 radians is equal to 30°

Another way is to use the equation: degrees = radians • (180 over pi)

In this example, plugging in the radians portion of the equation gives us: degrees = (pi over 6) • (180 over pi), which will become degrees = (180pi over 6pi)

Simplify and pi cancels out to give us degrees = 30

Answer: 30°

3 0
3 years ago
Please help me this geometry question
myrzilka [38]
For 13 a 0 degree line is a straight line
6 0
3 years ago
Two major automobile manufacturers have produced compact cars with engines of the same size. We are interested in determining wh
Molodets [167]

Answer:

(A) The mean for the differences is 2.0.

(B) The test statistic is 1.617.

(C) At 90% confidence the null hypothesis should not be rejected.

Step-by-step explanation:

We are given that a random sample of eight cars from each manufacturer is selected, and eight drivers are selected to drive each automobile for a specified distance.

The following data (in miles per gallon) show the results of the test;

Driver         Manufacturer A               Manufacturer B

   1                      32                                       28

  2                      27                                       22

  3                      26                                       27

  4                      26                                       24

  5                      25                                       24

  6                      29                                       25

  7                       31                                       28

  8                      25                                       27

Let \mu_1 = mean MPG for the fuel efficiency of Manufacturer A brand

\mu_2 = mean MPG for the fuel efficiency of Manufacturer B brand

SO, Null Hypothesis, H_0 : \mu_1-\mu_2=0  or  \mu_1= \mu_2    {means that there is a not any significant difference in the mean MPG (miles per gallon) when testing for the fuel efficiency of these two brands of automobiles}

Alternate Hypothesis, H_A : \mu_1-\mu_2\neq 0  or  \mu_1\neq  \mu_2   {means that there is a significant difference in the mean MPG (miles per gallon) for the fuel efficiency of these two brands of automobiles}

The test statistics that will be used here is <u>Two-sample t test statistics</u> as we don't know about the population standard deviations;

                      T.S.  = \frac{(\bar X_1-\bar X_2)-(\mu_1-\mu_2)}{s_p\sqrt{\frac{1}{n_1}+\frac{1}{n_2}  } }  ~ t__n__1+_n__2-2

where, \bar X_1 = sample mean MPG for manufacturer A = \frac{\sum X_A}{n_A} = 27.625

\bar X_2 = sample mean MPG for manufacturer B =\frac{\sum X_B}{n_B} = 25.625

s_1 = sample standard deviation for manufacturer A = \sqrt{\frac{\sum (X_A-\bar X_A)^{2} }{n_A-1} } = 2.72

s_2 = sample standard deviation manufacturer B = \sqrt{\frac{\sum (X_B-\bar X_B)^{2} }{n_B-1} } = 2.20

n_1 = sample of cars selected from manufacturer A = 8

n_2 = sample of cars selected from manufacturer B = 8

Also, s_p=\sqrt{\frac{(n_1-1)s_1^{2}+(n_2-1)s_2^{2}  }{n_1+n_2-2} }   =  \sqrt{\frac{(8-1)\times 2.72^{2}+(8-1)\times 2.20^{2}  }{8+8-2} }  = 2.474

(A) The mean for the differences is = 27.625 - 25.625 = 2

(B) <u><em>The test statistics</em></u>  =  \frac{(27.625-25.625)-(0)}{2.474 \times \sqrt{\frac{1}{8}+\frac{1}{8}  } }  ~  t_1_4

                                     =  1.617

(C) Now at 10% significance level, the t table gives critical values between -1.761 and 1.761 at 14 degree of freedom for two-tailed test. Since our test statistics lies within the range of critical values of t, so we have insufficient evidence to reject our null hypothesis as it will not fall in the rejection region due to which <u>we fail to reject our null hypothesis</u>.

Therefore, we conclude that there is a not any significant difference in the mean MPG (miles per gallon) when testing for the fuel efficiency of these two brands of automobiles.

5 0
3 years ago
Other questions:
  • Sam's camera screen is 2.7 inches long. He measured its length using the two rulers shown.
    15·1 answer
  • The volume of a prism is 230 mm3.
    10·1 answer
  • Given k║p.
    9·1 answer
  • Jan buys packages of pens for $5 each. Identify the independent and dependent variables in the situation
    12·1 answer
  • A freezer was sold during a clearance sale for​ $387.50. If the freezer was sold at a discount of 50/3%​, what was the list​ pri
    14·1 answer
  • the cost C (in dollars) for beads to make bracelets is C = 4x + 180, where x is the number of bracelets. Each bracelet sells for
    7·1 answer
  • Evaluate 60 divided by 6+9 subtract three
    15·2 answers
  • Y = 4x + 3 y = -x - 2 solving system by graphing​
    5·1 answer
  • (ASAPPPPPP!!) <br> Just look at the bicultural and answer it PLEASEEEE
    15·1 answer
  • 13<br> 2. Use the bar diagram to solve the following equation:<br> 4d + 5 = 13<br> d<br> d d d<br> 5
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!