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
Lorico [155]
2 years ago
7

I need some help with this Math problem.​

Mathematics
1 answer:
Sergeeva-Olga [200]2 years ago
5 0

Answer:

Step-by-step explanation:

D. violates the Law of Sines.

You might be interested in
Find the value of x.<br> 6x+3(-3x+4)=13
iren [92.7K]

Answer:

x= -1/3 or -0.3

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
A ski lift is designed with a total load limit of 20,000 pounds. It claims a capacity of 100 persons. An expert in ski lifts thi
Yanka [14]

Answer:

0.5 = 50% probability that a random sample of 100 independent persons will cause an overload

Step-by-step explanation:

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

Normal Probability Distribution:

Problems of normal distributions 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.

Central Limit Theorem

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

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For the sum of n values of a distribution, the mean is \mu \times n and the standard deviation is \sigma\sqrt{n}

An expert in ski lifts thinks that the weights of individuals using the lift have expected weight of 200 pounds and standard deviation of 30 pounds. 100 individuals.

This means that \mu = 200*100 = 20000, \sigma = 30\sqrt{100} = 300

If the expert is right, what is the probability that a random sample of 100 independent persons will cause an overload

Total load of more than 20,000 pounds, which is 1 subtracted by the pvalue of Z when X = 20000. So

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

Z = \frac{20000 - 20000}{300}

Z = 0

Z = 0 has a pvalue of 0.5

1 - 0.5 = 0.5

0.5 = 50% probability that a random sample of 100 independent persons will cause an overload

5 0
2 years ago
Which equation is represented by the graph below?
Natalka [10]

Answer:

y=-1/2x+2

the y-intercept is at 2 and the slope is -1/2

meaning the y coordinates with move down 1 while the x coordinates will move 2 in a positive (right) direction

5 0
2 years ago
Josephine noticed that out of 10 e-mails she received, 7 were advertisements. What can she predict about the number of advertise
andriy [413]
She can expect 70 to be ads since there is 10 times more emails so 7 times 10 is 70 so 70 ads
4 0
3 years ago
Read 2 more answers
Sheldon needs a pound of meat for a recipe he is planning to make next week. He sets aside a pound of meat and puts it in the fr
padilas [110]

Answer:

He needs to check his work more, and stop asking middle schoolers to do his cooking math.

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Other questions:
  • Find two numbers, if their sum is 97 and their difference is 7.
    12·1 answer
  • Going through York Canal, he drives 5 miles in 15 minutes. Later on as he crosses Stover Lake, he drives 30 minutes at the same
    6·1 answer
  • A rectangular floor is 6 yards long and 4 yards wide. What is the area of the floor in square feet? Please help!
    11·1 answer
  • NEEEEDDDD ASSAAAAPPPPP NEED ANSWER NOWWWW
    10·2 answers
  • Three angles of an octagon are equal and the sum of the remaining angles is 705⁰. find the size of one of the equal angles.​
    7·1 answer
  • HELPPPPPP MEEEEEEEEEEEE PLZZZZZZZZZZZZZ
    13·1 answer
  • Which graph represents a function?
    12·1 answer
  • E^-2x×(2x – 1)^5 how to derive this plz help​
    7·1 answer
  • In ΔGHI, h = 760 inches, ∠G=43° and ∠H=26°. Find the length of i, to the nearest inch.
    10·1 answer
  • . The probability that a patient catches flu is 3/8, the probability that he has a headache
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!