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3 years ago

HELP PLEASE I NEED THIS DONE ASAP

Mathematics

1 answer:

Nata [24]3 years ago

6 0

a). 0.45 with a line over the 45 means 0.45454545454545... forever.

It's equivalent to 45/99 which is 5/11 .

b). 0.45 with a line over the 5 means 0.455555555... forever.

It's equivalent to (0.4 + 0.555555.../10)

The 0.4 part is 4/10

The 0.5555555555.../10 part is 5/90 .

(4/10) + (5/90) = 41/90

c). 0.45 means 45/100 . That's 9/20 .

I don't think you're supposed to be posting unit test questions on Brainly.

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3 years ago

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3 years ago

Read 2 more answers

A rectangle has a height of t^2+7t+6t

jek_recluse [69]

Answer:

$2t^3+15t^2+19t+6$

Step-by-step explanation:

Height of the Rectangle $=t^2+7t+6$

Width of the Rectangle $=2t+1$

Area of the Rectangle = Height X Width

$=(2t+1)(t^2+7t+6)\\=2t(t^2+7t+6)+1(t^2+7t+6)\\=2t^3+14t^2+12t+t^2+7t+6\\$Collect like terms\\=2t^3+14t^2+t^2+12t+7t+6\\Area=2t^3+15t^2+19t+6\\$

The area of the rectangle is $2t^3+15t^2+19t+6$

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3 years ago

Simplify 3(2x+4y-y) i need help with that please

-BARSIC- [3]

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3 years ago