2 years ago

Which expression is equivalent to the given expression (6n^-5)(3n^-3)^2

Mathematics

1 answer:

Agata [3.3K]2 years ago

8 0

Answer:

The answer is C = 36n30

Step-by-step explanation:

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erica [24]

Answer:

4th choice which is 50.24 sq.m

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2 years ago

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The youth group is going on a trip to the State Fair trip cost 63 dollars included in that price is 13 dollars for a concert tic

Marina CMI [18]

Answer:

The cost of one pass is 25$

Step-by-step explanation:

Call the cost of one of the passes, P. So we have

63 = 13 + 2P - subtract 13 from both sides

50 = 2P - divide both sides by 2

25 = P

So the cost of one pass = $25

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1 year ago

A=960 rounded to the nearest 10 <br> b=89.0 rounded to 1 DP <br> Find the minimum (to 2 DP) of a÷b

astraxan [27]

Step-by-step explanation:

a÷b=960÷89=10.78651685=10.79 or 17.8

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2 years ago

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If sinA =3/5 and A+B =90 find cosB

-Dominant- [34]

$A+B=90^o\to B=90^o-A\\\\\cos B=\cos(90^o-A)=\cos90^o\cos A+\sin90^o\sin A\\\\=\cos A+1\cdot\dfrac{3}{5}=0+\dfrac{3}{5}=\dfrac{3}{5}\\\\\boxed{\cos B=\dfrac{3}{5}}$

$Used:\\\\\cos(x+y)=\cos x\cos y+\sin x\sin y\\\\\cos90^o=0,\ sin90^o=1$

Other method:

Look at the picture.

$\sin\theta=\dfrac{opposite}{hypotenuse}\\\\\sin A=\dfrac{3}{5}\to opposite=3\ and\ hypotenuse=5$

$\cos\theta=\dfrac{adjacent}{hypotenuse}\\\\adjacent=3\ and\ hypotenuse=5\to\cos B=\dfrac{3}{5}$

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2 years ago

A map has a scale of 2 inches : 12 miles. Two cities on the map are 6.5 inches apart. Find the actual distance between the two c

almond37 [142]

Answer:

Step-by-step explanation:

2in:12m = 6.5in:?m

6.5 / 2 = 3.25

3.25 x 12

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2 years ago