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Nonamiya [84]
3 years ago
8

Find the reference angle of

=" \frac{ - \pi}{7} " alt=" \frac{ - \pi}{7} " align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
Semenov [28]3 years ago
3 0

Answer:

π7

Step-by-step explanation:

since  is in the first quadrant, the reference angle is π7

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Ill give you 28 points if you answer this!!
elena-14-01-66 [18.8K]

Answer:

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Step-by-step explanation:

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3 years ago
F(x)= 3x - 4x2 +6x and g(x)= 5x +2x2 – 3x. What is f(x) g(x)?
goldenfox [79]

f(x)g(x) = 9x² + 10x - 16

<u>Step-by-step explanation:</u>

Step 1:

Given f(x) = 3x - 4 × 2 + 6x and g(x) = 5x + 2 × 2 - 3x

f(x) = 9x - 8

g(x) = 2x + 4

f(x)g(x) = (9x - 8)(2x + 4)

= 18x² + 36x - 16x -32

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2 years ago
The width of a rectangle is 8 inches less than the length. The perimeter is 76 inches. Find the length and the width.
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L=30in
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3 years ago
What is the equation of this parabola in vertex form
attashe74 [19]

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let's notice the vertex, or U-turn, is at (-2, 2)

\bf ~~~~~~\textit{parabola vertex form} \\\\ \begin{array}{llll} \boxed{y=a(x- h)^2+ k}\\\\ x=a(y- k)^2+ h \end{array} \qquad\qquad vertex~~(\stackrel{-2}{ h},\stackrel{2}{ k}) \\\\\\ y=+1[x-(-2)]^2+2\implies y=(x+2)^2+2

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3 years ago
Please help me with theses 4 questions
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