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Mice21 [21]
3 years ago
13

Select difference of (8x2-3x3) - (2x2-5x3)

Mathematics
2 answers:
mylen [45]3 years ago
5 0
(8x2-3x3) - (2x2-5x3)
= (16-9)-(4-15)
=7-(-11)
=7+11
=18
storchak [24]3 years ago
5 0
(8x^2 - 3x^3) - (2x^2 - 5x^3)

= 8x^2 - 3x^3 - 2x^2 + 5x^3.

= 8x^2 - 2x^2 + 5x^3 - 3x^3.  Simplify together like terms.

= 6x^2 + 2x^3

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19. When baking a cake, you have a choice of the following pans:
dimaraw [331]

The answer is

round cake - 82.42 in²

rectangular cake - 114 in²

Round cake:

d = 7 in

r = d/2 = 7 in / 2 = 3.5 in

h = 2 in

The surface are of a cylinder is:

A = 2πr² + 2πrh

The surface are of the round cake (which is actually a cylindrical cake) excluding the bottom is:

A = 2πr² + 2πrh - πr²

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= 38.46 + 43.96

= 82.42 in²

Rectangular cake:

w = 6 in

l = 9 in

h = 2 in

The surface are of a rectangle is:

A = 2wl + 2wh + 2lh

The surface are of the rectangular cake excluding the bottom is:

A = 2wl + 2wh + 2lh - wl

A = wl + 2wh + 2lh

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Step-by-step explanation: This answer is not mine but JcAlmighty’s so all credits go to them.

7 0
3 years ago
Read 2 more answers
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Answer:

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3 years ago
Aaron, Sarah and Neil travel a distance of 54.25 miles on a road trip. Neil drives the car for the greatest distance. Of the rem
guapka [62]
Aaron + Sarah + Neil= 54.25
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X = 54-(18.4+9.2) is the equation used

=54-27.6=26.4 miles is the answer
7 0
3 years ago
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