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anyanavicka [17]
3 years ago
13

As Sal said in the video, Sin A = 90-Cos A. And Cos A = 90-Sin A.

Mathematics
1 answer:
julia-pushkina [17]3 years ago
5 0
A has an angle of 0.....
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A perfect square trinomial can be represented by a square model with equivalent length and width. Which polynomial can be repres
lina2011 [118]
The correct answer is 
A) x^2 - 6x + 9

In fact, this is a trinomial of the form ax^2-bx+c, whose solutions are given by
x_{1,2}=  \frac{-b\pm \sqrt{b^2 -4ac} }{2a}
Using this formula for the trinomial of the problem, we find:
x1,2=  \frac{6 \pm \sqrt{6^2-4\cdot 1\cdot 9}}{2} =3
<span>we see that this trinomial has two coincident solutions (x=3 with multiplicity 2). This means that it can be rewritten as a perfect square, in the following form: 
</span>(x-3)^2<span>
</span>
8 0
2 years ago
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Answer the question circled and if you want to, the questions below
igomit [66]
4^3 is 64 and 3^4 is 81. Therefore the answer to the circled question is -17.
5 0
3 years ago
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How do i figure out [(3x²y³)2] ³
dybincka [34]

Answer:

216x⁶y⁹

Step-by-step explanation:

[(3x²y³)2]³

[6x²y³]³

[6]³.[x²]³.[y³]³

216.x⁶.y⁹

216x⁶y⁹

6 0
1 year ago
Which is larger 4 yard or 13 foot?
kow [346]
As 1 yard is equal to 3 feet , so 4 yard will be 12 feet !

so 13 foot > 4 yards
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3 years ago
Help me pls ! if you do l give you the brainiest
Zina [86]
The first answer is correct because the terms are alike in both expressions
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2 years ago
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