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
Lostsunrise [7]
3 years ago
9

Please help I’ll make you brainliest

Mathematics
1 answer:
asambeis [7]3 years ago
6 0

Answer:

Step-by-step explanation: 3. 12240 watts

4. 101.82 pounds of insecticide.

You might be interested in
Twelve less than a number is -75
yanalaym [24]
-87 because (-87)-12=-75
8 0
3 years ago
The operation manager at a tire manufacturing company believes that the mean mileage of a tire is 30,393 miles, with a standard
Pie

Answer:

52.84% probability that the sample mean would differ from the population mean by less than 339 miles in a sample of 37 tires if the manager is correct

Step-by-step explanation:

To solve this question, we have to understand the normal probability distribution and the central limit theorem:

Normal probability distribution:

Problems of normally distributed samples are 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.

Central limit theorem:

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, a large sample size can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}

In this problem, we have that:

\mu = 30393, \sigma = 2876, n = 37, s = \frac{2876}{\sqrt{37}} = 472.81

What is the probability that the sample mean would differ from the population mean by less than 339 miles in a sample of 37 tires if the manager is correct

This probability is the pvalue of Z when X = 30393 + 339 = 30732 subtracted by the pvalue of Z when X = 30393 - 339 = 30054. So

X = 30732

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

By the Central Limit Theorem

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

Z = \frac{30732 - 30393}{472.81}

Z = 0.72

Z = 0.72 has a pvalue of 0.7642.

X = 30054

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

Z = \frac{30054 - 30393}{472.81}

Z = -0.72

Z = -0.72 has a pvalue of 0.2358

0.7642 - 0.2358 = 0.5284

52.84% probability that the sample mean would differ from the population mean by less than 339 miles in a sample of 37 tires if the manager is correct

4 0
3 years ago
What are the zeros of the polynomial function f(x) = x^3-10x^2+24x
Ludmilka [50]
Replace F(x) with y
y=x^3-10x^2+24x
To find the roots replace y with 0.
0=x^3-10x^2-24x
Rewrite the equation as
x^3-10x^2+24x=0
Factor the left side
x(x-6)(x-4)=0
The solution is a result of
x=0, x-6=0, and x-4=0

The answer is:
x=0, 6, 4
3 0
3 years ago
Jasmine purchases a tablet computer for $233.56. Apps for the tablet cost 99¢ each. If Jasmine had $279 to spend on the tablet a
Leto [7]
45 games i just used a calculator will u please mark me brainiest hope this helps :)
7 0
3 years ago
The owner of The Pizza Palace has a deal offering 1 free order of breadsticks with 3 pizzas. If 24 total pizzas were sold with t
Sedbober [7]

Answer:

8

Step-by-step explanation:

for every 3 pizzas 1 free order is served

in 24 pizzas there is 8 (3 pizzas) so 8 free order

4 0
3 years ago
Other questions:
  • WHAT IS THE VALUE IF X???‼️‼️ HELP ASAP
    6·1 answer
  • What is the equation of a line that passes through the points (4,-7) and (2,-1)?
    5·1 answer
  • In a bus there is, A pregnant lady 24 years old A security guard 37 years old A random woman 56 years old Driver 68 years old Wh
    11·2 answers
  • Draw each pair of line?
    14·1 answer
  • Britney's town voted on the new speed limit. Out of 48 votes, 12 are in favor of the new speed limit. What percentage of the vot
    8·1 answer
  • 12(3)+3y=60 solve for y​
    6·2 answers
  • Please answer It is very easy<br><br> what value will make the equation true -2.1-?=-1 1/2
    6·1 answer
  • A sandbox 12ft. By 14 ft. requires that the sand be spread to a depth of 6 in. How many cubic feet of sand are needed?
    14·2 answers
  • Please help me solve this
    9·1 answer
  • Determine whether the relationship is an inverse variation or not. Explain.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!