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3 years ago

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50) A wheel has a radius of 9 inches and travels as it spins. How far does the wheel travel in one revolution? Show your work. U

se 3.14 for /pi and round to the nearest inch please :).

1 answer:

Ipatiy [6.2K]3 years ago

5 0

You must use the formula for the circumference of a circle which is 19*3.14. That is the distance the wheel travels in one revolution.

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sattari [20]

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Sloan [31]

Answer:

Sum of $\frac{7x}{x^2-4}$ and $\frac{2}{x+2}$ is $\mathbf{\frac{9x-4}{x^2-4}}$

Option B is correct answer.

Step-by-step explanation:

We need to find sum of $\frac{7x}{x^2-4}$ and $\frac{2}{x+2}$

Finding sum of $\frac{7}{x^2-4}$ and $\frac{2}{x+2}$ :

$\frac{7x}{x^2-4}+\frac{2}{x+2}$

We know that $x^2-4 =(x+2)(x-2)$

Replacing x^2-4

$\frac{7x}{(x+2)(x-2)}+\frac{2}{x+2}$

Now, taking LCM of (x+2)(x-2) and (x+2) we get (x+2)(x-2)

$=\frac{7x+2(x-2)}{(x+2)(x-2)}\\=\frac{7x+2x-4}{(x+2)(x-2)}\\=\frac{9x-4}{(x+2)(x-2)}\\=\frac{9x-4}{x^2-4}$

So, Sum of $\frac{7x}{x^2-4}$ and $\frac{2}{x+2}$ is $\mathbf{\frac{9x-4}{x^2-4}}$

Option B is correct answer.

6 0

3 years ago

4 2/5 × 10 using distributive property

gladu [14]

Answer 1 3/5 × 40=64

Step-by-step explanation:

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6 0

3 years ago

Any help will do! Thank you!

leonid [27]

<u>Let's take this problem step-by-step:</u>

<u>First let's set up the equation for the cost for one week of renting the car</u>

agency charges $230 per week

$charge = 230$

agency charges $0.25 per mile (<em>lets set the number of miles as 'x')</em>

<em> </em> $charge = 230 + 0.25x$

<u>The total cost was 415</u>, <em>therefore:</em>

$415 =230 + 0.25x\\185 = 0.25x\\x = 740$

Therefore, you traveled 740 miles

<u>Answer: 740 miles</u>

<u></u>

Hope that helps!

#LearnwithBrainly

3 0

2 years ago