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2 years ago

Which pair of numbers is relatively prime?

Mathematics

2 answers:

Anna35 [415]2 years ago

7 0

A is the correct answer

Semmy [17]2 years ago

4 0

B I’m pretty sure sorry if wrong

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On a science test, 2 points are deducted from a total of 100 points for each question answered incorrectly. Trevor scored an 84

ale4655 [162]

He answered 8 questions incorrectly. 2*8=16 100-16=84

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3 years ago

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Gravity pulls the metal down at 10 N, but the metal pieces RISES! At least how much force is needed to make it move upward?

prisoha [69]

Answer: Greater than 10 N

Step-by-step explanation:

Given

Gravity force on metal is 10 N

But the metal piece is rising i.e. there must be an upward force greater than 10 N

Suppose the force is F

So, we can write

$\Rightarrow F>10\ N$

Any force greater than 10 N is sufficient for the metal to move upwards

The greater the amount of force faster will be the movement

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2 years ago

Julie wrote the rate $108 in 6 weeks as a unit rate.Find her mistake and correct it.

natima [27]

Well for starters that would be $108/6 weeks when a unit rate is anything over one. To put it as a unit rate (how many dollars per hours) you just divide $108 by 6 (since you would divide 6 by 6 to get) and the unit rate would end up being $18 per hour.

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3 years ago

Find the flow rate through a tube of radius 6 cm, assuming that the velocity of fluid particles at a distance r cm from the cent

vaieri [72.5K]

Answer:

791.68 cm/s

Step-by-step explanation:

The volume flow rate can be interpreted as the integral of fluid velocity over area

$\dot{V} = \int\limits^6_0 {v(r) 2\pi r} \, dr\\\dot{V} = 2\pi\int\limits^6_0 {(25-r^2)r} \, dr\\\dot{V} = 2\pi\int\limits^6_0 {25r-r^3} \, dr\\\\\dot{V} = 2\pi[12.5r^2 - r^4/4]_0^6\\\dot{V} = 2\pi(12.5*6^2 - 6^4/4 - 12.5*0 - 0)\\\dot{V} = 2\pi*126 = 791.68 cm/s$

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3 years ago

Help!!! ASAP<br> A PASS OR FAIL!! Help

marysya [2.9K]

Answer:

48/73

Step-by-step explanation:

cos S in ratio = ?

cos S = Adjacent/hypothenus

adjacent is the dimension of line aside the opposite (the line facing angle S, the hypotenus(longest line)

adjacent = 48

hypothenus = 73

cos S= 48/73

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3 years ago

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