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3 years ago

3. Lin had $18 in her bank account. She bought a ticket to the movies for

Mathematics

1 answer:

Elena-2011 [213]3 years ago

5 0

$9 + $7 + $5 = $21 so $18 - $21 = account balance = -$3

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siniylev [52]

Answer:

$\large\boxed{x=\dfrac{\pi}{6}\ \vee\ x=\dfrac{5\pi}{6}\ \vee\ x=\dfrac{7\pi}{6}\ \vee\ x=\dfrac{11\pi}{6}}$

Step-by-step explanation:

$12\cos^2x-9=0\qquad\text{add 9 to both sides}\\\\12\cos^2x=9\qquad\text{divide both sides by 12}\\\\\cos^2x=\dfrac{9}{12}\\\\\cos^2x=\dfrac{9:3}{12:3}\\\\\cos^2x=\dfrac{3}{4}\to\cos x=\pm\sqrt{\dfrac{3}{4}}\\\\\cos x=\pm\dfrac{\sqrt3}{2}\\\\\text{Look at the picture}\\\\x=\dfrac{\pi}{6}\ \vee\ x=\dfrac{5\pi}{6}\ \vee\ x=\dfrac{7\pi}{6}\ \vee\ x=\dfrac{11\pi}{6}$

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3 years ago

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EastWind [94]

Answer:

18.15

Step-by-step explanation:

55% = 55/100

33 = 33/1

33/1 x 55/100

33 x 55 = 1815

1 x 100 = 100

1815/100 = 18.15

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2 years ago

Please help me for my finals!! I'll do anything

oee [108]

(A)

Choice (B) is not the right answer because I

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3 years ago

If SA=1/2lp+B, find p What is the formula for finding p?

Ilia_Sergeevich [38]

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Ede4ka [16]

Answer:

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Step-by-step explanation:

Won't go in-depth since time seems to be of the essence

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