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Kay [80]
3 years ago
11

What the flip is this neither me nor my parents know what this is can u plz help me?

Mathematics
2 answers:
alexandr1967 [171]3 years ago
5 0

I'm going to write the problem out without the x because that can be confused as the variable x.

2 * m * m * t * t * 2 * 2 * m * 2 * t * t

There are 3 m's being multiplied and 4 t's being multiplied. We can write this as m³ and t⁴. There are four 2's being multiplied and 2⁴ = 16.

We can combine these together to get: 16m³t⁴

Answer: \boxed {16m^3t^4}

Vitek1552 [10]3 years ago
3 0
Get all the m’s together all the 1’s and all the 2’s
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A rectangular box with a square base and a cover is to be built to contain 640 cubic feet. If the cost per square foot for the b
mixer [17]

Answer:

  $4800

Step-by-step explanation:

The cost is minimized when any pair of opposite faces of the box costs the same as any other pair. Since the top+bottom total $25 per square foot and the sides (left+right or front+back) total $20 per square foot, the area of a side must be 25/20 = 5/4 times the area of the top or bottom.

If we let x represent the length of one side of the square bottom, then 5/4x will be the height of the box. Its volume will be ...

  (5/4x)(x²) = 640 ft³

  x³ = (4/5)(640 ft³) = 512 ft³ . . . . . . multiply by 4/5

  x = 8 ft . . . . . . . . . . . . . . . . . . . . . . . take the cube root

The base area is then (8 ft)² = 64 ft², and the cost of the top+bottom is ...

  64 ft² × $25/ft² = $1600

The three pairs of opposite sides will cost 3×$1600 = $4800.

The minimum cost of the constructed box is $4800.

_____

You can also write an equation for the total cost in terms of x, the side length of the base. That cost function will be ...

  c(x) = 15x² + 10x² + 10·4x(640/x²)

This simplifies to ...

  c(x) = 25x² +25600/x

A graph shows the minimum is c(8) = 4800 (as above).

__

Algebraically, you can set the derivative to zero to find the value of x.

  dc/dx = 0 = 50x -25600/x²

  512 = x³ . . . . multiply by x²/50 and add 512

  8 = x . . . . . . . take the square root. Same solution as above. <em>Cost is minimized when the side length of the base is 8 ft</em>.

8 0
3 years ago
The unit rate for number 9 which states: You create 15 centerpieces for a party in 5 hours is 5. Is this true or false.
alekssr [168]
False because it’s not correct it’s a false statement because (again)…

7 0
2 years ago
Can anyone help me find the value pls?
Flauer [41]

The inside angle for B, which is labeled x is the same as the outside angle of D which is labeled as 72, so we know x = 72.

In a parallelogram two angles next to each other equal 180, so angle A and angle B equal 180.

We know B = 72, so A = 180-72 = 108

Angle A is divided in 2 by angle y, so y = 108/2 = 54

Answers: x = 72

Y = 54

4 0
3 years ago
Is 400 pt greater than 100 gal
Rufina [12.5K]

Answer:

no.400pts is equal to 50 gallons.1pt equals 0.125 gallons 400 pints x0.125 gallons equals 50 gallons,so that statement is false

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
A group of 15 explorers to the south pole had just enough food to last them for 40 days how long would the food last if all of a
Trava [24]

Answer:

3 days

Step-by-step explanation:

15-3=12

40/12= 3.3

round to 3

5 0
3 years ago
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