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
Alex_Xolod [135]
2 years ago
13

Help please if you can

Mathematics
2 answers:
viktelen [127]2 years ago
5 0
I believe it’s 150 feet per minute
aleksandrvk [35]2 years ago
5 0
Its for sure 150 feet per min!!
You might be interested in
It's all politics: A politician in a close election race claims that 52% of the voters support him. A poll is taken in which 200
riadik2000 [5.3K]

Answer:

a) P(x ≤ 0.44) = 0.02275

b) The probability of obtaining a sample proportion less than or equal to 0.44 is very low (2.275%), hence, it would be unusual to obtain a sample proportion less than or equal to 0.44.

c) P(x ≤ 0.50) = 0.30854

A probability of 30.854% doesn't scream unusual, but it is still not a very high probability. So, it is still slightly unusual to obtain a sample proportion of less than half of the voters that don't support the politician.

Step-by-step explanation:

Given,

p = population proportion that support the politician = 0.52

n = sample size = 200

(np = 104) and [np(1-p) = 49.92] are both greater than 10, So, we can treat this problem like a normal distribution problem.

This is a normal distribution problem with

Mean = μ = 0.52

Standard deviation of the sample proportion in the distribution of sample means = σ = √[p(1-p)/n]

σ = √[0.52×0.48)/200]

σ = 0.035 ≈ 0.04

a) Probability of obtaining a sample proportion that is less than or equal to 0.44. P(x ≤ 0.44)

We first normalize/standardize/obtain z-scores for a sample proportion of 0.44

The standardized score for any value is the value minus the mean then divided by the standard deviation.

z = (x - μ)/σ = (0.44 - 0.52)/0.04 = -2.00

To determine the probability of obtaining a sample proportion that is less than or equal to 0.44.

P(x ≤ 0.44) = P(z ≤ -2)

We'll use data from the normal probability table for these probabilities

P(x ≤ 0.44) = P(z ≤ -2) = 0.02275

b) Would it be unusual to obtain a sample proportion less than or equal to 0.44 if the politician's claim is true?

The probability of obtaining a sample proportion less than or equal to 0.44 is 0.02275; that is, 2.275%.

The probability of this occurring is very low, hence, it would be unusual to obtain a sample proportion less than or equal to 0.44.

c) If the claim is true, would it be unusual for less than half of the voters in the sample to support the politician?

Sample proportion that matches half of the voters = 0.50

P(x < 0.50)

We follow the same pattern as in (a)

We first normalize/standardize/obtain z-scores for a sample proportion of 0.50

z = (x - μ)/σ = (0.50 - 0.52)/0.04 = -0.50

To determine the probability of obtaining a sample proportion that is less than 0.50

P(x < 0.50) = P(z < -0.50)

We'll use data from the normal probability table for these probabilities

P(x < 0.50) = P(z < -0.50) = 1 - P(z ≥ -0.50) = 1 - P(z ≤ 0.50) = 1 - 0.69146 = 0.30854

Probability of obtaining a sample proportion of less than half of the voters that support the politician = 0.30854 = 30.854%

This value is still not very high, it would still he unusual to obtain such a sample proportion that don't support the politician, but it isn't as unusual as that calculated in (a) and (b) above.

Hope this Helps!!!

3 0
3 years ago
Andrew's sanwich consists of a 20-gram piece of cheese, a 60-gram piece of Turkey, and two 30-gram slices of bread. What is the
Maru [420]

Answer:

0.14

Step-by-step explanation:

The way to solve this problem is to add everything together. 20+60 is 80, and there are two 30 gram slices of bread (30 x 2 = 60) so you add the 80 from before to the two slices of bread, which is 80 + 60, and that equals 140 grams total. Since there are 1000 grams in 1 kilogram, you have to divide this by 1000, giving you 0.14 or 14/1000.

3 0
3 years ago
19. Michelle and Mike are both dog sitters. Michelle charges $2 per day plus a sign-up fee of
user100 [1]

Answer:

See below

Step-by-step explanation:

Michelle

  • y = 3+2x

Mike

  • y = 3x
8 0
3 years ago
What is the value of x?
katovenus [111]

Answer:

x = 15

Step-by-step explanation:

Using the Altitude on Hypotenuse theorem

( leg of large Δ )² = (part of hypotenuse below it ) × ( whole hypotenuse )

Thus

x² = 9 × (9 + 16) = 9 × 25 = 225 ( take the square root of both sides )

x = \sqrt{225} = 15

4 0
3 years ago
What is 25% of 48 ?​
Anuta_ua [19.1K]

Answer:

12

Step-by-step explanation:

12 beacuse We assume, that the number 48 is 100% - because it's the output value of the task.

x is the value we are looking for

Now we have two simple equations:

1) 48=100%

2) x=25%

48/x=100%/25%

Now we just have to solve the simple equation, and we will get the solution we are looking for.

Solution for what is 25% of 48

48/x=100/25

(48/x)*x=(100/25)*x       - we multiply both sides of the equation by x

48=4*x       - we divide both sides of the equation by (4) to get x

48/4=x

12=x

x=12

now we have:

25% of 48=12

4 0
3 years ago
Read 2 more answers
Other questions:
  • Find all solutions to the equation:
    8·1 answer
  • Evaluate (–1)8 + (–1)7 + –16 + –14 – (–1)2.
    5·2 answers
  • Whats the equation of a line that passes through (-6,2) andbuas a slope of -(1)/(2)
    13·1 answer
  • rhonda had a piece of ribbon that was 5 feet 3 inches long she removed a 5-inch piece to us in her art project what is the lengt
    12·2 answers
  • What 3 factors were used to create this product game board with the numbers 4 6 9 14 49?
    11·1 answer
  • The price of a holiday was decreased by 12% to £600. What was the price before the decrease? Give your answer to the nearest pen
    15·2 answers
  • ?????????????????????????????
    7·1 answer
  • Lowest common multiple of 90 and 63
    14·2 answers
  • Of 100 staff member of school 48 drank coffee 25 drank both tea and coffee and every one drinks either coffee or tea . How staff
    5·1 answer
  • Henrietta bought 5 cupcakes and 2 brownies for $16.25. She went back to the bakery the next day and bought 7 cupcakes and 6 brow
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!