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3 years ago

Convert 3miles in feet

Mathematics

2 answers:

dybincka [34]3 years ago

7 0

Answer: 15,840 Miles.

Step-by-step explanation: A mile is a unit of distance equal to 5,280 feet or exactly 1.609344 kilometers. So, 5,280 x 3 = 15,840

Kaylis [27]3 years ago

6 0

15,840 Feet .........

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Ksenya-84 [330]

Answer:

48,400 yd²

Step-by-step explanation:

(220+180)/2*260=52000

1/2(180)(60)=5400

So the total area is 52000+5400=57400

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3 years ago

Read 2 more answers

Solve, using the substitution method.

Dafna11 [192]

Hello there!

The question asks us to solve using the substitution method. The equations given are:

$2x+3y=1$

$y=x-8$

We are given a value for y, which is x-8. Substituting $y=x-8$ into the first equation of the system of equation gives us:

$2x+3y=1$

$2x+3(x-8)=1$

Use the distributive property to help simplify and solve for x

$2x+3x-24=1$

Combine like terms

$5x-24=1$

Add 24 to both sides

$5x-24+24=1+24$

$5x=25$

Finally, divide both sides by 5

$x=5$

Now, let's use $x=5$ in the equation $y=x-8$ to find the value of y

$y=x-8$

$y=5-8$

$y=-3$

Now, we have the values x=5 and y=-3. Putting these values into an ordered pair gives us the answer (5,-3), which is the last answer choice.

Let me know if you need any clarifications, thanks!

~ Padoru

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3 years ago

Convert the circle to standard form.<br><img src="https://tex.z-dn.net/?f=%20%7B9x%7D%5E%7B2%7D%20%20%2B%20%20%7B9y%7D%5E%7B2%7D

lara31 [8.8K]

Answer:

(x + 1)² + (y + 1)² = (√6)²

Step-by-step explanation:

Group the x- and y- terms together:

9x^2 + 18x + 9y^2 + 9y = 36

Factor out the coefficient 9:

x^2 + 2x + y^2 + y = 4

Complete the square of x^2 + 2x and then do the same for y^2 + 2y:

x^2 + 2x + 1 - 1 + y^2 + 2y + 1 - 1 = 4

Rewrite x^2 + 2x + 1 as the square of the binomial x + 1:

(x + 1)^2 + (y + 1)^2 - 2 = 4

Collect the constant terms on the right side:

(x + 1)^2 + (y + 1)^2 = 6

Rewrite 6 as (√6)^2:

(x + 1)² + (y + 1)² = (√6)² is the equation in standard form (x - h)² + (y - k)² = r²

Completing the square is done as follows: x^2 + 2x

Start with x^2 + 2x

1. Take half of the coefficient of x, which results in 2/2, or 1

2. Square this result and add it to, and subtract it from x^2 + 2x

x^2 + 2x + 1 - 1

3. Rewrite the first three terms as the square of a binomial:

x^2 + 2x + 1 - 1 = (x + 1)² - 1.

Do the same for y² + 2y.

7 0

3 years ago

Convert 3miles in feet ​

Convert 3miles in feet