2 years ago

Sin2xcosx + cos2xsinx=-1/2

1 answer:

8 0

If you know the rule,

The left side is equal to sin(3x), which is equal to -1/2

So x = (12pi*n-pi) / 18, where n is any integer.

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Solve the equation for x

Rasek [7]

Answer:

the answer is 5

Step-by-step explanation:

2x/5 - 9 = -7

2x/5 = -7 + 9

2x/5 = 2

2x = 2 * 5

2x = 10

x = 10/2

x = 5

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2 years ago

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Devon exercised the same amount of time each day for 5 days last week. e His exercise included walking and swimming. e Each day

prohojiy [21]

I think that Devon swam at least 35 minutes each day for 5 days because if he exercised 225 minutes and each day he walked for 10 minutes then if you divide 225 by 5 you get 45 so every day he exercised 45 minutes and since he walked for 10 minutes you subtract 10 from 45 which gives you 35 so he swam for 35 minutes.

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3 years ago

(9x^(2)+4x+2)-:(3x+x-2)

earnstyle [38]

Answer:

= - 9x2+4x+2/4x-2

Step-by-step explanation:

Remove parentheses

its blank we need to find a number

step 1: = -/4x-2 (9x2+4x+2)

step 2: multiply fractions and there is your answer

9x2+4x+2/4x-2

6 0

2 years ago

5/13 of 26 is what number

Vlad1618 [11]

Answer:10

Step-by-step explanation:26/13 is 2 therefore 5 times 2 is 10

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2 years ago

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If each person gets 3/4 pound of squash, how many people can evenly split a 9-pound basket of squash from the farmer's market?

crimeas [40]

Answer:

12 people

Step-by-step explanation:

9 divided by 3/4= 12

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2 years ago