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Dahasolnce [82]
2 years ago
5

Which of the following pair of numbers could be the slopes for a set of perpendicular lines?

Mathematics
1 answer:
LUCKY_DIMON [66]2 years ago
8 0
It should be 1/2 and 2

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What is 66.087, 67, 66.87, and 66.6 from least to greaest
polet [3.4K]
Line up the numbers at the decimal and follow each digit from left to right and find the greatest. Obviously, 67 comes after 66, so that is going to be the greatest. Now in the tens place after the decimal, 0 is the least (66.087), so it will go first, then 6 (66.6), then 7 (66.87).
66.087,
66.6,
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8 0
3 years ago
Find [4(cos15° + isin15°)]^3 and express it in a + bi form.
arsen [322]

Answer:

see explanation

Step-by-step explanation:

Using De Moivre's theorem

Given

[ 4(cos15° + isin15° ) ]³, then

= 4³ [ cos(3 × 15°) + isin(3 × 15°) ]

= 64 (cos45° + isin45° )

= 64 (\frac{\sqrt{2} }{2} + \frac{\sqrt{2} }{2} i )

= 64 (\frac{\sqrt{2} }{2} (1 + i) )

= 32\sqrt{2} (1 + i)

= 32\sqrt{2} + 32\sqrt{2} i

3 0
3 years ago
HELP ME PLEASE
Zina [86]

Answer:

π(5²)(13)+⅓π(5²)(12)

Step-by-step explanation:

You can find the volume of the cylinder by:

V=πr²h

which is V1=π(5²)(13)

and the volume of the crooked cone by:

⅓πr²h

which is V2=⅓π(5²)(12)

and you need the volume of the whole shape. you can find by adding V1+V2

3 0
1 year ago
How can you prove a triangle is a right triangle?
Darina [25.2K]
Your answer would be option 2. Use the slope formula to see if any sides are perpendicular. This is because a right triangle must have 2 perpendicular sides that form a 90° angle for it to be a right triangle, so finding these would prove it.
I hope this helps!
6 0
3 years ago
Read 2 more answers
What is the answer 3x+15=8x
Art [367]

Answer:

3x +15 = 8x

5x = 15

x = 3

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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