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3 years ago

Which of the following situations can be represented by C = 10 + 0.44n?

Mathematics

1 answer:

Verdich [7]3 years ago

7 0

Answer:

10.44

Step-by-step explanation:

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Stephon has a square brick patio. He wants to reduce the width by 4 feet and increase the length by 4 feet.

alekssr [168]

Answer: The expressions for the length and width of the new patio are

$\ell=x+4,~~w=x-4.$

And the area of the new patio is 384 sq. feet.

Step-by-step explanation: Given that Stephen has a square brick patio. He wants to reduce the width by 4 feet and increase the length by 4 feet.

The length of one side of the square patio is represented by x.

We are to write the expressions for the length and width of the new patio and then to find the area of the new patio if the original patio measures 20 feet by 20 feet.

Since Stephen wants to reduce width of the patio by 4 feet, so the width of the new patio will be

$w=(x-4)~\textup{feet}.$

The length of the patio is increased by 4 feet, so the length of the new patio will be

$\ell=(x+4)~\textup{feet}.$

Now, if the original patio measures 20 feet by 20 feet, then we must have

$w=x-4=20-4=16~\textup{feet}$

and

$\ell=x+4=20+4=24~\textup{feet}.$

Therefore, the area of the new patio is given by

$A_n=\ell \times w=24\times16=384~\textup{sq. feet}.$

Thus, the expressions for the length and width of the new patio are

$\ell=x+4,~~w=x-4.$

And the area of the new patio is 384 sq. feet.

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4 years ago

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Bingel [31]

Can you give me the problem

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3 years ago

Which is the best buy

Juliette [100K]

Answer:

C, 4 kilogram bags.

Step-by-step explanation:

All you have to do for this is divide the price by the kilograms. I did this for every one and the lowest cost per kilogram was C, $4.60.

Mark brainliest if you can plz!

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3 years ago

HELP ASAP!!!hahahahsna s densllalsjdnd dnsksk

Akimi4 [234]

Answer:

A = (-7,6)

B = (2,4)

C = (-6,0)

Step-by-step explanation:

A = (-9 + 2, 2 + 4)

B = (0 + 4, 0 + 4)

C = (-8 + 2, -4 + 4)

8 0

3 years ago

If a vertical line is dropped from the x-axis to the point (12, –9) in the diagram below, what is the value of sec theta?

faust18 [17]

Answer:

$\sec \theta=\dfrac{5}{4}.$

Step-by-step explanation:

Use the definition of secans:

$\sec \theta=\dfrac{1}{\cos \theta}.$

Now you have to find the cosine of angle $\theta.$

Point (12,-9) lies in fourth quadrant, then $\cos \theta>0.$

Consider right triangle with legs 9 and 12, by the Pythagorean theorem,

$\text{hypotenuse}^2=9^2+12^2=81+144=225,\\ \\\text{hypotenuse}=15.$

Thus,

$\cos \theta=\dfrac{\text{adjacent leg}}{\text{hypotenuse}}=\dfrac{12}{15}=\dfrac{4}{5}$

and

$\sec \theta=\dfrac{1}{\dfrac{4}{5}}=\dfrac{5}{4}.$

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3 years ago

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