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3 years ago

How do you solve this without using a calculator

Mathematics

1 answer:

Leviafan [203]3 years ago

5 0

Answer:

$C)\:\:\frac{\sqrt 2}{ 2 }$

Step-by-step explanation:

$\sin \bigg( \frac{3\pi}{4} \bigg) \\ \\ = \sin \bigg( \pi - \frac{\pi}{4} \bigg) \\ \\ = \sin \bigg(\frac{\pi}{4} \bigg) \\ \\ = \frac{1}{ \sqrt{2} }\\\\= \frac{\sqrt 2}{ 2 }$

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PLEASE HELPPPP!!!!! 100 POINTS!!!

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Answer:

here you can get your answers from https:cutly.com

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3 years ago

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A dice game lets you roll 2 6 sided disc and find the sum of the numbers. A 12 wins 100 dollars, 10 or 11 wins 50 dollars, a 2 w

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Answer:

Step-by-step explanation:

A two 6 sided die is rolled

Sample space would be (1,1)...(1,6)....(6,1)....(6,6)

Let x be the sum obtained

X can take values as 2 or 3 ....12

P(x=12) = P(6,6) =1/36

P(x=10 or 11) = P{(5,5)(5,6) (6,5) (4,6)(6,4)}=5/36

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Thus we can list this as

Sum 2 3 4 5 6 7 8 9 10 or 11 12

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E(outcome) = E(gain -6) = E(gain)-6 = 353/36 -6

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3 years ago

Karen bought a total of seven items at five different stores. She began with $65.00 and had $15.00 remaining. Which of the follo

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4 years ago

1/2 ( x - 4 ) = 1/3 ( x + 2)<br><br> pls help me

Eddi Din [679]

Answer:

x=16

Step-by-step explanation:

1/2 ( x - 4 ) = 1/3 ( x + 2)

distribute both sides

1 /2 (x−4)= 1/ 3 (x+2)

( 1 /2 )(x) + ( 1/ 2 )(−4) =( 1 /3 ) (x)+( 1/3 )(2)(Distribute)

1 /2 x+−2= 1 /3 x+ 2 /3

Step 2: Subtract 1/3x from both sides.

1/2x -2 -1/3 x

x= 1 /3 x + 2/3 − 1/ 3 x

1 /6 x−2= 2/ 3

Step 3: Add 2 to both sides.

1 /6 x −2+2= 2/ 3 +2

1 /6 x = 8 /3

Step 4: Multiply both sides by 6.

6*( 1/6 x) =6*( 8 /3 )

x=16

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