2 years ago

Please help I don't understand

Mathematics

1 answer:

natali 33 [55]2 years ago

4 0

Answer:

i think it is d y=4x2 + 9x +5

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3 years ago

Bookstore sells book in excellent condition for $2.50 and in fair condition for $0.50 . Write an expression for cost of buying x

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2 years ago

How to figure out answer ?

spin [16.1K]

$\sin 45=\dfrac{y}{11\sqrt6}\\
\dfrac{\sqrt2}{2}=\dfrac{y}{11\sqrt6}\\
2y=11\sqrt{12}\\
y=\dfrac{11\sqrt{12}}{2}\\\\
\tan 60=\dfrac{x}{y}\\
\tan 60=\dfrac{x}{\dfrac{11\sqrt{12}}{2}}\\
\sqrt3=\dfrac{2x}{11\sqrt{12}}\\
2x=11\sqrt{36}\\
2x=66\\
x=33 \Rightarrow D
$