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
Nonamiya [84]
3 years ago
10

What is the solution to the equation

Mathematics
2 answers:
gtnhenbr [62]3 years ago
8 0

Answer:

No solution

Step-by-step explanation:

DIA [1.3K]3 years ago
3 0

Answer: I got -8/9. Hope this helps in any way shape of form.

Step-by-step explanation:

You might be interested in
A Pew Internet poll asked cell phone owners about how they used their cell phones. One question asked whether or not during the
EastWind [94]

Answer:

a) \hat p=\frac{471}{1024}=0.460

The standard error is given by:

SE= \sqrt{\frac{\hat p(1-\hat p)}{n}}=\sqrt{\frac{0.460(1-0.460)}{1024}}=0.0156

And the margin of error is given by:

ME=z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}=1.96\sqrt{\frac{0.460(1-0.460)}{1024}}=0.0305

b) The 99% confidence interval would be given by (0.429;0.491)

Step-by-step explanation:

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".  

The margin of error is the range of values below and above the sample statistic in a confidence interval.  

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

The population proportion have the following distribution

p \sim N(p,\sqrt{\frac{p(1-p)}{n}})

Data given and notation  

n=1024 represent the random sample taken    

X=471 represent the people responded that they had used their cell phone while in a store within the last 30 days to call a friend or family member for advice about a purchase they were considering

\hat p=\frac{471}{1024}=0.460 estimated proportion of people responded that they had used their cell phone while in a store within the last 30 days to call a friend or family member for advice about a purchase they were considering    

p= population proportion of people responded that they had used their cell phone while in a store within the last 30 days to call a friend or family member for advice about a purchase they were considering

Part a

The confidence interval would be given by this formula

\hat p \pm z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}

For the 95% confidence interval the value of \alpha=1-0.95=0.05 and \alpha/2=0.025, with that value we can find the quantile required for the interval in the normal standard distribution.

z_{\alpha/2}=1.96

The standard error is given by:

SE= \sqrt{\frac{\hat p(1-\hat p)}{n}}=\sqrt{\frac{0.460(1-0.460)}{1024}}=0.0156

And the margin of error is given by:

ME=z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}=1.96\sqrt{\frac{0.460(1-0.460)}{1024}}=0.0305

Part b

If we replace the values obtained we got:

0.460-1.96\sqrt{\frac{0.460(1-0.460)}{1024}}=0.429

0.460+1.96\sqrt{\frac{0.460(1-0.460)}{1024}}=0.491

The 99% confidence interval would be given by (0.429;0.491)

8 0
3 years ago
A bag contains 45 marbles of various colors. Jon draws 60 times, each time replacing the marble before drawing again. He gets a
iren2701 [21]
Can u post the whole picture and question
6 0
3 years ago
Lilly takes a train each day to work that averages 35 miles per hour. On her way home, her train ride follows the same path and
Klio2033 [76]

Answer: 2.5=\frac{n}{35}+\frac{n}{45}


Step-by-step explanation:

1. To find the equation asked, you must add the times:

t_{total}=t_1+t_2

Where t_1 is the time takes Lilly in her path to work and t_2  is the time takes Lilly in her path to home.

2. You must use the following formula of speed and solve for the time

V=\frac{n}{t}

Where n is the distance, V is the speed and t is the time.

3. You know that Lilly takes a train each day to work that averages 35 miles per hour, then, you can write the following expression:

35=\frac{n}{t_1}\\t_1=\frac{n}{35}

4. And her train ride follows the same path at 45 miles per hour:

 45=\frac{n}{t_2}\\t_2=\frac{n}{45}

5. Then, you obtain the following equation:

2.5=\frac{n}{35}+\frac{n}{45}

5 0
3 years ago
Read 2 more answers
andreas car gets 25miles per gallon of gas. her vacation cabin is 190 miles away. how many gallons of gas will she need to get t
aliina [53]
You'll need 7.6 gallons of gas... all you do is divide 190 by 25 and get 7.6 as your answer
3 0
3 years ago
Determine if the function is linear, not linear.
Viefleur [7K]
Y^3=x and 3y=x^2 is nonlinear

the others are linear
5 0
3 years ago
Read 2 more answers
Other questions:
  • A ship travels due west for 90 miles and turns to travel 80 miles in the northwest direction, at a 120° angle. How far is the sh
    11·1 answer
  • What is 10.39-4.28 rounding estimated to
    7·1 answer
  • Find the arc measure ML.
    12·1 answer
  • Please help me anyone one, C
    7·2 answers
  • Every irrational number is a real justify your answer<br>​
    10·1 answer
  • Brian invests ?1900 into a savings account. The bank gives 3.5% compound interest for the first 2 years and 4.9% thereafter. How
    12·1 answer
  • A store sells candles. Each candle costs the same amount. During a sale, the store reduces the price of each candle by $1.75. Ke
    15·2 answers
  • What do you already know about fractions?
    9·2 answers
  • Will give brainliest to whoever answers this with a serious response. I have had no luck on it and the one answer I did get was
    14·1 answer
  • The height of a projectile launched upward at a speed of 48 feet/second from a height of 160 feet is given by the function h(t)=
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!