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Answer:

Option C

The answer is 10.6

Explanation:

Here,

Total rise = 9 feet

Now, 1 foot = 12 inch

So, 9 x 12 inches = 108 inches

A riser height between 7 and 8 inches,

i.e., 8 ≤ h ≤ 7

Total riser = xh ...(1)

where x is the number of steps and h is the riser's height.

From equation (1),

x = Total riser ÷ h

Total riser = 108

h = 8 ≤ h ≤ 7

Thus,

x = 108/8 ≤ h ≤ 108/7

x = 14 ≤ h ≤ 15 ....(2)

Since the number of steps (x) is an odd number,

So, x = 15 [from equation (2)] (.°. 14 is not an odd number)

Also, from equation (1),

h = total riser/x

h = 108/x = 108/15 = 7.2 [it's between 7 and 8]

from riser-tread formula,

2h + d = 25

d = 25 - 2h

d = 25 - 2(7.2)

d = 25 - 14.4

d = 10.6

Thus, The answer is 10.6

-TheUnknownScientist

Answer:

Explanation:

The riser-tread formula states riser (R)+ tread (T) = 17 inches minimum, or 18 inches maximum.

Given R is between 7 - 8 inches, T must be between 9 - 11 inches.  So the only choices within this range are B) 9.5 and C) 10.6.

As the number of steps must be odd:

for R between 7 - 8 inches, the total rise of 9 feet i.e. 108 inches requires -

108/7 = 15.4 ~ 16 steps to

108/8 = 13.5 ~ 14 steps

15 steps is an odd number between 14 and 16.

With 15 steps, R = 108/15 = 7.2"

For choice B, R + T = 7.2 + 9.5 = 16.7" which is short of the riser-thread formula.

For choice C, R + T = 7.2 + 10.6 = 17.8" which satisfies the riser-thread formula and is the correct answer.

Edit: I missed the riser-thread formula in this question has been defined as  2h + d = 25. So the above calculation was done with a different definition of the formula but arrived at the same answer.

Answer:

The sentence helps to define the personality and character of William Tavener's wife.

Explanation:

The Sentimentality of William Tavener is a short story about a Phlegmatic but hardworking man whose wife on the other hand was a choleric, and a domineering wife.

William Tavener's wife is also described as a good manager who was constantly on the move, spirited and practical. The phrase "she didn't wait to be consulted" meant she was very busy.

So the sentence does the job of portraying her nature and introducing her character to the reader.

Cheers

Answer:22bb square roots

Explanation:none

A boat heading out to sea starts out at Point AA, at a horizontal distance of 1023 feet from a lighthouse/the shore. The distance from point AA to point BB is  -1114.01 feet.

Distance is a numerical or qualitative measurement of the distance between two objects or places.

The distance of point A from the lighthouse = 1023 feet

The angle of elevation from point A to the lighthouse = 11°

The angle of elevation from point B to the lighthouse = 2°

tanΘ = opposite side to angle / adjacent side to the angle

tan7° = height from sea to the lighthouse / 1023 feet

Height to the lighthouse = tan(11°) × 1023 feet

0.1944 x  1023 feet =  198.8712

For point B

tan3° = 198.8712 feet

Horizontal distance =  198.8712 / tan3°

tan3° = -2.1850

Horizontal distance =  198.8712 / -2.1850 = -91.0165

D = Horizontal distance from B to LH - Horizontal distance from A to LH

Distance from A to B

-91.0165 - 1023 feet =  -1114.01

Therefore, the distance from point AA to point BB is  -1114.01 feet.

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Answer:

Weathering and Erosion

Answer and Explanation:

Which sentence part includes the subject and main action?

Nani began to count syllables

Which sentence part tells when the action was performed?

After closing her eyes and exhaling

Which sentence part tells how the action was done?

Silently and perfectly

#teamtrees #PAW (Plant And Water)

The error variance can be Illustrated as σ^2 = E(μ^2) = Var(μ) = (1/n) * ∑(y - (b0 + b1x))^2

The simple linear regression model is of the form:

y = b₀ + b₁x + μ

y = the dependent variable

x = the independent variable

b₀ and b₁ = the parameters of the model, and μ is the error term.

The error term represents the difference between the observed value of the dependent variable and the value predicted by the model. In other words, it is the deviation of the observed y from the expected value of y, given the value of x.

The error variance, denoted by σ^2, is a measure of the spread of the error term. It is calculated as the average squared deviation of the error term from its mean value, which is zero:

σ^2 = E(μ^2) = Var(μ) = (1/n) * ∑(y - (b₀ + b₁x))^2

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Complete question

Given the simple linear regression model y=b0+b1xi+µ, derive the error variance.

Answer:

it had to follow a pattern

Explanation:

she doesn't like reading

Answer: it has a pattern to follow

Explanation: took quiz

Answer:

PART A

PART B

Explanation:

In this case where the question is asking or OR and the events are mutually exclusive (Mutually exclusive meaning you can't attain two or three different colors in one pick), the compound probability is the sum of the probability of each component event (Probability of Red OR Blue = P(Red) + P(Blue) = 7/29 + 8/29 = 15/29)

Answer:

dfgsdfg

Explanation:

srewt

Answer:

A

Explanation:

Technically, as soon as a credit account is delinquent, the lender can take action to repossess the property tied to the loan. In the case of a car loan, if you miss a payment, the bank could repossess the vehicle without notice.

They don't pay, it get's taken away!

Answer:

2nd one I think if I'm wrong my apologies:)

Answer:

You see birds can fly but fish cannot. Birds can breath outside of water but fish can't. So in this scenario birds have the advantage. Fish can't leave the water so they will be contaminated with the pollution. Birds can leave the water because they can fly to safety.

Answer:

it has a pattern to follow

Answer:

it has a pattern to follow

Explanation:

she wants a clear 1 2 3 step, which is why she likes math as said earlier. the haiku will "give her a structure to follow" or a pattern to follow.

Answer:

B Four year colleges

Explanation:

thats how long it takes to get one

Answer:

answer is A

Explanation:

Answer:

Once a year, a college goes on an expedition trip to do charity work abroad. Last year’s trip was to help set up a community garden in South America. This year’s trip will be to Kenya. The trips are expensive, but students can save a lot of money by working together and doing fundraising events.

Answer:

The total number of different 13-letter arrangements that can be formed using the letters in the word UNCONDITIONAL is 13! or 6,227,020,800.

Explanation:

Percentage for the runners with heart rate of above 140 is 50.199% probability.

To calculate percentage of runners heart rate;

Mean, μ = 104

Standard deviation, σ = 12.5

Probability = P(X > 140)

P(X > 140) = [tex]1 - P (\frac{X - μ}{σ} \leq \frac{140 - μ}{σ})[/tex]

P(X > 140) = [tex]1 - P (Z \leq \frac{140 - 104}{12.5})[/tex]

P(X > 140) = [tex]1 - P (Z \leq \ 2.88)[/tex]

For a Z score of 2.88, the cumulative from mean probability and percentile are:

The normal distribution for 2.88 = 0.49801

P(X > 140) = 1 - 0.49801

P(X > 140) = 0.50199

P(X > 140) = 0.50199 x 100

The percentage for the heart rate = 50.199%

The probability of of runners heart rate above 140 is a 50.199% chance.

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Answer:

it does

Explanation:

The central bank of a country controls the amount of money in circulation in order to maintain the health of the economy. Banks can regulate the amount of money in circulation by manipulating interest rates.

Economic and financial stability is largely dependent on central banks. In order to achieve low and stable inflation, they implement monetary policy. Following the global financial crisis, central banks have added more tools to their arsenals to address threats to financial stability and control fluctuating exchange rates.

In developing nations, a central bank can be extremely important in creating the financial foundation for growth. A clear and significant activity that falls under this category is the development of local currency and the capital market.

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Answer:

Who you can choose in any picture

Paul Ryan tells his audience that he represents "a part of America that includes inner cities, rural areas, suburbs, and factory towns" in order to illustrate that he can connect to a variety of people.

Social connection can lower anxiety and depression, help us regulate our emotions, lead to higher self-esteem and empathy, and actually improve our immune systems. By neglecting our need to connect, we put our health at risk.

Paul Ryan represents a part of America that includes inner cities, rural areas, suburbs, and factory towns. Over the years I have seen and heard from a lot of families, from those running small businesses, and from people who are in need.

Therefore, Paul Ryan tells his audience that he represents "a part of America that includes inner cities, rural areas, suburbs, and factory towns" in order to illustrate that he can connect to a variety of people.

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