Which expression can be used to determine the lateral surface area of a rectangular prism with a length of 8 units, a width of 10 units, and a height of 6 units? (10×6+8×6)
2(8×10+10×6+8×6)
2(8×10)+2(8×6)
8×10×6

99

step-by-step explanation:

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answer4 to the second power is 16

and 4 to the third power is 64,

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.