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Virty [35]
3 years ago
6

D\dx(3x^2) Please answer fast.

Mathematics
1 answer:
Sloan [31]3 years ago
7 0

Answer:

3x

Step-by-step explanation:

\frac{d}{dx} (3x  {}^{2} )

\frac{1}{x} 3 {x}^{2}

3x

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A bicycle is traveling at 22 miles per hour. How many feet will it cover in 45 seconds? Round your answer to the nearest tenth o
puteri [66]
  • Answer:

<em>1452 feet</em>

  • Step-by-step explanation:

<em>1 hour = 60min×60sec = 3600 sec</em>

<em>1 miles = 5280 feet</em>

<em>22 miles = 22×5280ft = 116160 ft</em>

<em />

<em>3600sec ................. 116160 ft</em>

<em>45sec ................................ x ft</em>

<em>x = 45×116160/3600</em>

<em>= 5227200/3600</em>

<em>= 1452 feet</em>

7 0
3 years ago
What is the equation of the line that is parallel to the line 5x + 2y = 12 and passes through the point (−2, 4)?
icang [17]
I believe the answer is y = -5/2x + 6
4 0
3 years ago
On tax free weekend Michael bought 3 shirts that cost $19.50 each. He used a coupon for 25% off of the total purchase. Rounded t
trasher [3.6K]
His total would be 58.50 then you multiply by .25 percent then you take 14.63 and subtract that from the total and you get 43.87
8 0
3 years ago
You buy 21 lbs of cucumbers which are 92% water. A few days later they’re 85% water. How much do they weigh then?
IrinaK [193]
To solve this, you must find the initial weight of the cucumber. To do this, you must divide the weight by the percentage of water and multiply it by 100.

(21/92)×100=22.83lbs.

Then, you multiply it by 85% and divide it by 100. Or simply multiply it by 0.85.

22.83×0.85=19.41lbs.

3 0
3 years ago
Write numbers on the blanks to create a different expression that is equal to (3+4)+5
gizmo_the_mogwai [7]

Answer:

(3+4)+5=12

Step-by-step explanation:

(3 + 4 ) = 7

7 + 5 =

12

5 0
3 years ago
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