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defon
3 years ago
6

Place each number on the number line,use the number line to round the numbers to the nearest 1,000 39,477 39,892 39,189 39,511

Mathematics
1 answer:
Usimov [2.4K]3 years ago
7 0
39,000 40,000 39,000 40,000 hope this helped!
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Margarita [4]

Answer: 2sin^2x+sin2x+cos2x=0 ..... (1).

By using the trigonometric identities below :

sin2x=2sinxcosx

cos2x=cos^2x-sin^2x

We substitute the trigonometric identities into (1).

2sin^2x+2sinxcosx+cos^2x-sin^2x=0

By combining like terms .

sin^2x+2sinxcosx+cos^2x=0.....(2)

The equation (2) is equivalent to the following expression (3).

(sinx+cosx)(sinx+cosx)=0 .....(3).

sinx+cosx=0

cosx=-sinx

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tan135º=-1 (one answer)

tan315º=-1 (second answer)

Step-by-step explanation:

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3 years ago
The radius of circle O is 24 and OC = 13. Find AB.
irinina [24]

Answer:

what does oc mean?

Step-by-step explanation:

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3 years ago
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nadya68 [22]

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larisa86 [58]

Answer:

6 square feet

Step-by-step explanation:

Carpet has w= 8 ft and l = 12 ft

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3 years ago
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weqwewe [10]

Answer:

y = -3/2x + 6

Step-by-step explanation:

Parallel lines have the same slope so slope is -3/2

Using (4,0)

y = mx + b

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so y = -3/2x + 6

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2 years ago
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