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3 years ago

I need help on this question!!!Feel free to explain your answer! :)

Mathematics

2 answers:

sertanlavr [38]3 years ago

5 0

Answer:

i am not that smart.

Step-by-step explanation:

idk this im dumb.

Naya [18.7K]3 years ago

4 0

Answer:

The area of Postage Stamp measured in $cm^{2}$

Step-by-step explanation:

Postage Stamp is in Rectangular or a Square shape.

Size of the stamp is very small that is in centimeter not in meter.

We have,

$\textrm{Area of Rectangle}= Length\times Breadth= cm\times cm=cm^{2} \\\textrm{Area of Square}= side\times side= cm\times cm=cm^{2} \\$

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A home improvement store advertises 60 square feet of flooring for $287.00 including an $80.00 installation fee. How much does e

Nutka1998 [239]

Answer:

$4.78 per square foot if the $80.00 is a flat rate, $6.11 if the installation fee is also per square foot.

Step-by-step explanation:

287.00/60 = 4.78

80.00/60 = 1.33

8 0

4 years ago

WILL MARK BRAINLIEST :))

worty [1.4K]

Answer: The answer is angle 1!

They're both on the exterior and they're opposites.

This is the correct answer on the quiz.

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3 years ago

Write an explanation of how to change a number in decimal notation to scientific notation.

nekit [7.7K]

Answer:

Move the decimal place to the left. Determine the exponent (number of times you moved the decimaal place). Plug it into (N x 10^a)

Step-by-step explanation:

8 0

3 years ago

A real estate agent has surveyed houses in twenty nearby zip codes in an attempt to put together a comparison for a new property

gladu [14]

Answer:

A a house in that market that sells for $300,000 is unusual.

Step-by-step explanation:

Let the random variable X denote the price of a house and the random variable Y denote the living area of a house.

The number of houses surveyed by the real estate agent is, n = 1057.

Assume that both the random variables, X and Y are approximately normally distributed.

That is,

$X\sim N(\$169400,\ \$68438)\\\\Y\sim N(2058\ \text{sq. ft.},\ 790\ \text{sq. ft.})$

To compute the probability of a Normal distribution we first need to convert the raw scores to z-scores.

$z=\frac{\text{Raw score}-\mu}{\sigma}$

A z-score higher than 1.96 and lower than -1.96 are considered unusual. The values having these z-scores are considered as outliers.

(1)

Compute the z-score for X = 300000 as follows:

$z=\frac{X-\mu}{\sigma}\\\\=\frac{300000-169400}{68438}\\\\=2.70$

(2)

Compute the z-score for Y = 3000 as follows:

$z=\frac{Y-\mu}{\sigma}\\\\=\frac{3000-2058}{790}\\\\=1.19$

The z-score for a house in that market that sells for $300,000 is more than 1.96.

This implies, that the price $300,000 is unusually high.

The complete statement is:

The house that sells for $300 comma 000 has a z-score of 2.70 and the house with 3000 sq ft has a z-score of 1.19.

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3 years ago

Write the equation of the line that passes through the given points (0,1) (-7,-5)

pishuonlain [190]

Answer:

Step-by-step explanation:

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3 years ago

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