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Marizza181 [45]
3 years ago
10

Simplify the expression sin(pi+x) + sin(pi - x)

Mathematics
1 answer:
Nitella [24]3 years ago
8 0
   
\sin(\pi+x) = -\sin(x) \\  \\ 
\sin(\pi-x) = \sin(x) \\  \\ 
\sin(\pi+x) + \sin(\pi-x) = -\sin(x) + \sin(x) = \boxed{0}



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lana66690 [7]

Answer:

25 necklaces

Step-by-step explanation:

each necklace brings $16 profit (20-4=16)

400÷ 16= 25

so, at 25 necklaces, there will be enough profit to break even after paying for the advertising.

8 0
2 years ago
In the figure below, what are k and m ​
DerKrebs [107]

The answer to your question is k and m are both 9

6 0
3 years ago
Given: 2x + 11 = 15 Prove: x = 2 Statements Reason 1. 2x + 11 = 15 1. Given 2. 2x = 4 2. 3. X = 2 3. Division Property of Equali
wariber [46]

Answer:

Statements                       Reasons

1. 2x + 11 = 15                    1. Given

2. 2x = 4                            2. Subtraction Property of Equality

3. X = 2                              3. Division Property of Equality

Step-by-step explanation:

An equation can be solved and its solution proven using algebraic theorems and properties. To create a proof, form two columns. Label one side Statements and the other Reasons.

Begin your proof listing the any information given to you. List as the reason - Given.

Then list the next step which here would be to subtract by 11 on both side. The reason is Subtraction Property of Equality. Subtraction is the inverse of addition. Inverse axiom is another acceptable reason.

Then divide both sides by 2. The reason is Division Property of Equality or Inverse axiom once again. See the proof below.

Statements                       Reasons

1. 2x + 11 = 15                    1. Given

2. 2x = 4                            2. Subtraction Property of Equality

3. X = 2                              3. Division Property of Equality

6 0
3 years ago
Read 2 more answers
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igomit [66]

The volume of one die is the edge to the power of 3:

V=0.62^3in^{3^{}}.

The total volume is five times the above volume:

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Answer:

1.19164in^3

5 0
1 year ago
Write the value of 4 in 305,444
BigorU [14]
Divide 305444 by 4

305444 / 4
76361

so
76361 times 4 is equal to 76361
3 0
3 years ago
Read 2 more answers
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