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2 years ago

14

Trina wants to put baseboards around her 12 by 15-foot bedroom. How many feet of baseboards will she need for the perimeter of h

er room?

1 answer:

o-na [289]2 years ago

6 0

I believe the answer would be 54 feet of baseboard

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Simplify by dividing three over five divided by negative four over nine.

Kruka [31]

If I read that right:

(3/5)/(-4/9) is equal to

(3/5)*(9/-4)

-27/20

-1 7/20

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2 years ago

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Given sin thata = 2/5 and 0° < thata < 90°. find sin 2 thata

Andrej [43]

Recall the double angle identity:

$\sin2\theta=2\sin\theta\cos\theta$

With $\theta$ measuring between 0º and 90º, we know $\cos\theta>0$ . So from the Pythagorean identity, we get

$\sin^2\theta+\cos^2\theta=1\implies\cos\theta=\sqrt{1-\sin^2\theta}=\dfrac{\sqrt{21}}5$

Then

$\sin2\theta=2\dfrac25\dfrac{\sqrt{21}}5=\dfrac{4\sqrt{21}}{25}$

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3 years ago

I need help on my story problems

victus00 [196]

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3 years ago

suzanne buys 6 paints sets. each set contains the same number of brushes. she buys 18 brushes.how many bruxhes are in each paint

Luda [366]

3 bruches i think

Because you need to divide

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2 years ago

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H(t)=-10t+6<br> H(_____)=-44<br> Help me please.

alexira [117]

Answer:

-10t +6=-44

-10t=-44-6

-10t=-50

-50\-10

=5

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2 years ago