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satela [25.4K]
3 years ago
12

If ∠R is given and the values of r and q are given, then explain whether the Law of Sines or the Law of Cosines should be used t

o solve for ∠Q. Law of Sines, two sides and an opposite angle are known Law of Sines, two angles and the included side are known Law of Cosines, all sides are known Law of Cosines, two sides and the included angle are known

Mathematics
1 answer:
JulijaS [17]3 years ago
3 0

Answer:

Law of Sines, two sides and an opposite angle are known

Step-by-step explanation:

We are given <R, which is an opposite angle to side r.

Side q is also given, which has an unknown opposite angle, <Q, of which we are required to find.

Since two sides and an opposite angle are known, The Law of Sines would be applied in solving for <Q.

Thus, the following would be used:

\frac{sin(Q)}{q} = \frac{sin(R)}{r}

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To write the polynomial 3x3 + x2 − 8x5 + 2x3 − 4x in standard form, which terms should be combined? A. 3x3 and 2x3 B. 3x3, 2x3,
djyliett [7]

Answer:

Option A. is correct

Step-by-step explanation:

Like terms are those terms that have same variables of same powers. Terms that are not like terms are said to be unlike terms.

For example 2x^3,7x^3 are like terms and 5x^2,9x^5 are unlike terms.

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4 years ago
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Answer:

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First multiply first and second bracket:

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Solve the like terms:

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