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tamaranim1 [39]
4 years ago
14

I really need help on this I have no clue how to do this and my new teacher have a foreign accent so I can’t understand her

Mathematics
1 answer:
Fittoniya [83]4 years ago
3 0

Answer:

sinθ = 12/15 -> 4/5

cosθ = 9/15 -> 3/5

tanθ = 12/9 -> 4/3

cscθ = 15/12 -> 5/4

secθ = 15/9 -> 5/3

cotθ = 9/12 -> 3/4

Step-by-step explanation:

The theta is where you would use to identify the numbers for the trig functions. The adjacent side is the one closest to the theta (but not the diagonal line, that is the hypotenuse), and the opposite line is the line next to the adjacent line.

For the first three trig functions, would use the method Soh Cah Toa.

Sin = opp/hypotenus, Cosine = adjacent/hypotenuse, and Tangent = opposite/adjacent. Then, there is cosecant(csc) = hyp/opp, secant = hyp/adj, and cotangent = adj/opp.

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According to the fundamental theorem of algebra, how many roots does the polynomial f(x)=x4+3x2+7 have over the complex numbers,
Finger [1]

ANSWER

4 roots.

EXPLANATION

The given polynomial function is

f(x) =  {x}^{4}  + 3 {x}^{2}  + 7

This is a fourth degree polynomial.

According to the Fundamental Theorem of Algebra, an nth degree polynomial has n roots.

This roots include both real and complex roots.

Also repeated roots or roots with multiplicity greater than one are counted as distinct.

Since the given polynomial function is a fourth degree polynomial, the Fundamental Theorem of Algebra, says that this polynomial has 4 roots.

8 0
3 years ago
One fifth of a number, decreased by 17 is 41 in algebraic expression
asambeis [7]

The correct algebraic expression is X ÷ 5 - 17 = 41

<h3>What is an algebraic expression?</h3>

An algebraic expression is a term that refers to a way of representing mathematical operations in which letters and numbers are combined, related to signs of the operations such as:

  • Addition (+)
  • Subtraction (-)
  • Multiplication (×)
  • Division (÷)
  • Empowerment (x^{2})

According to the above, we can infer that the correct algebraic expression would be:

  • X ÷ 5 - 17 = 41

In this algebraic expression the letter X represents a number that we do not know and we must find.

Learn more about algebraics in: brainly.com/question/953809

8 0
2 years ago
Read 2 more answers
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