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const2013 [10]
3 years ago
8

Find the distance between points P(5,8) and Q(1,7) to the nearest tenth

Mathematics
1 answer:
morpeh [17]3 years ago
3 0

Answer:

length =  \sqrt{ {(x _{1} - x_{2} )}^{2} +  {(y _{1}  - y_{2} })^{2}  }  \\  =  \sqrt{ {(5 - 1)}^{2}  +  {(8 - 7)}^{2} }  \\  =  \sqrt{16 + 1 }  \\  =   \sqrt{17}  \\ length = 4.1 \: units

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A bicycle tire has a radius of 11 inches. To the nearest inch, how far does the tire travel when it makes 7 revolutions?
jok3333 [9.3K]

Answer:

d = 483.56 inches

Step-by-step explanation:

We have,

Radius of a bicycle tire is 11 inches. It is required to find the distance traveled by the distance covered by the tire when it makes 7 revolutions. One revolution means the circumference of circle. So,

C=2\pi r\\\\C=2\times 3.14\times 11\\\\C=69.08\ \text{inches}

In 7 revolution, it will cover a distance of 7C i.e.

C=69.08\times 7\\\\C=483.56\ \text{inches}

So, the tire will cover a distance of 483.56 inches in 7 revolutions

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3 years ago
Brittany is making trays of fudge. Her recipe calls for 2/3 cup of walnuts for each batch of fudge . How many cups of walnut doe
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Step-by-step explanation:

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3 years ago
Graph the linear equation.<br><br> 3x−4y=12
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Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
A bag contains 6 yellow marbles and 18 red. If a representative sample contains 2 yellow marbles, then how many red would you ex
kramer

Answer:

6 red marbles

Step-by-step explanation:

We must first find our multiplier since a sample represents a population (the whole thing).

6/2 = 3, so 3 * 2 = 6.

I will use the value of 6/2, aka 3 and use that as my divisor.

18/3 = 6.

Therefore, you would expect to have 6 red marbles.

3 0
3 years ago
Assume that your present job pays a monthly gross salary of $1,560. You are offered a new position that pays $8.60 per hour with
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Answer:

There are 4 weeks in a month and 40 working hours in a week

Since the $8.60 per hour, the gross monthly salary for your new position = 8.60*40*4 = $1,376

Your gross monthly salary at present job = $1,560

So the additional amount that you need to earn at your new position = 1,560-1,376 = $184

The hourly wage for addtional hours more than 40 hours at the new position = 1 1/2 * 8.60 = 1.5*8.60 = $12.90

So, number of hours that you need to work extra = 184/12.90 = 14.26 hours per month

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Step-by-step explanation:

4 0
3 years ago
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