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2 years ago

Your family's car can hold 20 gallons of gas. If you use .5 gallons of gas a day, how many gallons do you use in 10 days

Mathematics

1 answer:

liq [111]2 years ago

7 0

If it’s 0.5 gallons for 10 days, then it would be ? but if it’s 5 gallons for 10 days, it’s 55

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Simplify<br><br> sqrt(3 + 2 sqrt 2) ...?

trasher [3.6K]

The answer is 1 + √2

sqrt(2) is $\sqrt{2}$
sqrt(3 + 2 sqrt 2) is $\sqrt{3 +2 \sqrt{2} }$
Now, let's simplify $\sqrt{3 +2 \sqrt{2} }$ .
We will use square of sum: (a + b)² = a² + 2ab + b²

$\sqrt{3 +2 \sqrt{2} } = \sqrt{1+2+2 \sqrt{2} }= \sqrt{1+2 \sqrt{2}+2 }= \\ 
= \sqrt{1^{2} +2*1* \sqrt{2} + (\sqrt{2} ) ^{2} } = \sqrt{(1+ \sqrt{2}) ^{2}} =1+ \sqrt{2}$

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2 years ago

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Find the value of given expression<br><br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B%20%5Cfrac%7B242%7D%7B2%7D%20%7D%20" id

dangina [55]

Answer:

the answer is 11

Step-by-step explanation:

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2 years ago

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usain bolt, a Jamaica retired sprinter and world record holder in the 100 meters, 200 meters and 4 × 100 meters relay, has an av

Novosadov [1.4K]

For this case we have the following conversion of units:

$1mi = 1609m$

$1h = 3600s$

Thus, applying the conversion of units we have:

$(23.35 \frac{mi}{h}) (\frac{1609}{1}\frac{m}{mi}) (\frac {1}{3600}\frac{h}{s}) = 10.4 \frac{m}{s}$

Then, the distance traveled for 5 seconds is given by:

$d = (10.4) (5)$

$d = 52m$

Answer:

he has completed 52 meters of the 80-meter race

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2 years ago

What is the average velocity between 12.00 and 15.00 seconds

bekas [8.4K]

The average between 12.00 and 15.00 seconds
can be defined in a few different ways.

Way #1: (speed)

   Average speed =
   (1/2) (the speed at 12 seconds + the speed at 15 seconds) .

Way #2: (speed)

   Average speed =
   (1/3) (the distance covered between 12.00 and 15.00 seconds)

Way #3: (velocity)

   Average velocity =
   (1/3) (distance between location at 12 sec and location at 15 sec)
   in the direction from location at 12 sec to location at 15 sec.

That's the best we can do with the combination of given and
not given information in the question.

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3 years ago

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Which describes the relationship between Angle 1 and Angle 2?

AveGali [126]

Answer:

angles 1 and 2 are supplementary

Step-by-step explanation:

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3 years ago

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