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Naya [18.7K]
3 years ago
5

Find an identity for cos(4t) in terms of cos(t)

Mathematics
2 answers:
Ilya [14]3 years ago
4 0
Hello here is a solution :

aleksley [76]3 years ago
3 0
\cos4t=\cos2(2t)=2\cos^22t-1
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FILL IN THE BLANKS: Given P(x) = 3x5 + 7x6 + 11x7 – 12x - 10
Mama L [17]

The polynomial  3x^5 + 7x^6 + 11x^7 - 12x - 10 is in standard form if the exponents are arranged in decreasing order.

<h3>Polynomial in Standard Form</h3>

Polynomial is an algebraic expression with one or more terms. For example :2x^3+6x^4+x^2+x+2. In this example and in your exercise the exponents of the terms are not arranged in order.

Um polynomial is in <u>Standard Form</u> when the exponents of the terms are in decreasing order. See more details below.

2x^3+6x^4+x^2+x+2is not in standard form because the exponents are not written in decreasing order.

6x^4+2x^3++x^2+x+2 is in standard form because the exponents are written in decreasing order.

Therefore, the given polynomial will be in standard form if yours exponents are arranged in decreasing order.

Read more about polynomials here:

brainly.com/question/4142886

4 0
3 years ago
Tickets for a minor league baseball game for an adult and two children cost a total of $21 the adult ticket is three dollars mor
oksian1 [2.3K]

Answer:the cost of one child's ticket is $6

the cost of one adult ticket is $9

Step-by-step explanation:

Let x represent the cost of one child's ticket

Let y represent the cost of one adult ticket.

Tickets for a minor league baseball game for an adult and two children cost a total of $21. This means that

2x + y = 21 - - - - - - - - - - 1

The adult ticket is three dollars more than a child's ticket. This means that

y = x + 3

Substituting y = x + 3 into equation 1, it becomes

2x + x + 3 = 21

3x + 3 = 21

3x = 21 - 3 = 18

x = 18/3 = 6

y = x + 3 = 6 + 3

y = 9

6 0
4 years ago
What is the value of x? 6x - 2x = 16
agasfer [191]

6x - 2x = 16

4x = 16    |divide both sides by 4

<h3>x = 4</h3>
5 0
3 years ago
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How Do I do proofs for proving triangles?
MA_775_DIABLO [31]
You must have been taught postulates and theorems that allow you to prove triangles congruent, such as SSS, SAS, ASA, etc. Look at the given information of a proof, and see how from the given information, using definitions, postulates, and theorems you have already learned, you can show pairs of corresponding sides and angles to be congruent that will fit into the above methods. Then use one of the methods to prove the triangles congruent.
4 0
3 years ago
Round 5,890 to the nearest thousand
frutty [35]
5.890 \approx \boxed{6.000}
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3 years ago
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