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BartSMP [9]
3 years ago
15

(2/5) to the 2 power

Mathematics
2 answers:
PtichkaEL [24]3 years ago
6 0

Answer:

4/25

Step-by-step explanation:

2x2=4 5x5=25

marta [7]3 years ago
4 0

Answer:

0.16

Step-by-step explanation:

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Giving brainliest 10 points if you answer correctly !!!!
inn [45]

Answer:

(2,4) I hope this helps :))

3 0
2 years ago
help me PIZThis is a picture of a cube and the net for the cube.What is the surface area of the cube? k12
Sunny_sXe [5.5K]

Answer:

486 in²

Step-by-step explanation:

9x9x6=486 in²

5 0
3 years ago
A farmer wants to fence a rectangular area of 72 square feet next to a river. Find the length and width of the rectangle which u
Arlecino [84]

Answer:

  • 12 ft parallel to the river
  • 6 ft perpendicular to the river

Step-by-step explanation:

The least fence is used when half the total fence is parallel to the river. That is, the shape of the rectangle is twice as long as it is wide.

72 = W(2W)

36 = W²

6 = W . . . . . . the width perpendicular to the river

12 = 2W . . . .  the length parallel to the river

_____

<em>Development of this relation</em>

Let T represent the total length of the fence for some area A. Then if x is the length along the river, the width is y=(T-x)/2, and the area is ...

  A = xy = x(T -x)/2

Note that the equation for area is that of a parabola with zeros at x=0 and at x=T. That is, for some fence length T, the area will be a maximum at the vertex of this parabola. That vertex is located halfway between the zeros, at ...

 x = (0 +T)/2 = T/2

The corresponding area width (y) is ...

  y = (T -T/2)/2 = T/4

Equivalently, the fence length T will be a minimum for some area A when x=T/2 and y=T/4. This is the result we used above.

8 0
3 years ago
La suma de los cuadrados de dos enteros positivos consecutivos es 761. Cuales son los números?
PilotLPTM [1.2K]

Answer:

19 al cuadrado suma 20 al cuadrado es 761

Step-by-step explanation:

8 0
3 years ago
A ship traveling east at 45 mph is 15 mi from a harbor when another ship leaves the harbor traveling east at 60 mph. How long do
Harman [31]

Answer:

  1 hour

Step-by-step explanation:

I find these easiest to work by considering the initial difference in distance and the speed at with that gap is closing.

__

The gap is 15 miles, the distance the first ship is from harbor when the second ship starts.

The rate of closure is the difference in the speeds of the two ships:

  60 mph -45 mph = 15 mph

Then the closure time is ...

  time = distance/speed

  time = (15 mi)/(15 mi/h) = 1 h

It will take the second ship 1 hour to catch up to the first ship.

7 0
2 years ago
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