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bogdanovich [222]
3 years ago
14

Find value of x Find value of y

Mathematics
1 answer:
Softa [21]3 years ago
4 0

Answer:

Step-by-step explanation:

use  SOH CAH TOA

Sin = Opp / Hyp

Cos = Adj / Hyp

Tan = Opp / Adj

then we know the adjacent side and the angle, and want to find the Hyp, so use  CAH

Cos(60) = ( 8\sqrt{3}  / 3 ) / Hyp       ( cos(60) = 1/2 )

Hyp = (8\sqrt{3} / 3) / (1/2)

Hyp = 2 ((8\sqrt{3} / 3)

Hyp = 16\sqrt{3} / 3

x =  16\sqrt{3} / 3

Now use SOH

Sin (60) = Opp / 16\sqrt{3} / 3      ( sin(60) = \sqrt{3}/2 )

(16\sqrt{3} / 3)(\sqrt{3}/2) = Opp

16 * 3 / 6  = Opp

8 = Opp

y = 8

:)

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12. (2v^3 - v + 8) + (-v^3 + v - 3)<br><br> 14. (4h^3 + 3h + 1) - (-5h^3 + 6h - 2)
Lana71 [14]
12. On addition, you can just combine like terms.
2v^3+(-v^3)=v^3
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8+(-3)=5
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14 On subtraction, you have to remember to distribute the negative sign so after you do that you have:
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3 years ago
What is 0.34 miles per hour converted into a fraction or decimal?
Eddi Din [679]

Answer:

Step-by-step explanation:

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Bob’s monthly phone bill is made up of a $10 fee plus $0.05 per minute. Bob’s phone bill for July was $22. Write an equation to
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Answer:

equation: 10 + 0.05x=22

Step-by-step explanation:

the next step after writing the equation would be to subtract 10 from both sides to get 0.05x=12. after this you would then have to divide 12 by 0.05 to get 240 minutes. you could check it by putting 240 in for x to get 10+0.05(240)=22. you would then multiply 0.05 by 240 to get 12 and then add 10 onto it to get 22 which was already given.

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Convert
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Answer:

The correct option is A.

Step-by-step explanation:

The given number is

\frac{5}{11}

Where 5 is dividend and 11 is divisor.

Since dividend is less than divisor we add a decimal place and the first zero. Notice the decimal point which has appeared on the answer line and by the dividend. It does not appear anywhere else.

Now the dividend is 50. Divide the number by divisor.

11\times 4=44

Subtract 44 from 50.

50-44=6

Therefore remainder is 6. Place a zero after 6.

Now the new dividend is 60. Divide the number by divisor.

11\times 5=55

Subtract 55 from 60.

60-55=5

Therefore remainder is 5.

\frac{5}{11}=0.454545

\frac{5}{11}\approx 0.45

Therefore option A is correct.

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4 years ago
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