3 years ago

Mike can read 15 pages of a book in 24 minutes.

Mathematics

2 answers:

ANEK [815]3 years ago

4 0

Answer: It will take Mike 72 minutes to read 45 pages.

Plz mark brainliest:)

kow [346]3 years ago

3 0

Answer:

Step-by-step explanation:

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3 years ago

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Help me to solve this question

Lynna [10]

Answer:

$\left \{ {{\theta_1=\frac{\pi }{4} } \atop {\theta_2=\frac{3\pi }{4} }} \right. .$

Step-by-step explanation:

$2*cos^2\theta-1=0\ \ \ \ (0^0\leq \theta\leq 360^0)\ \ \ \ \ \theta=?\\2*cos^2\theta-(sin^2\theta+cos^2\theta)=0\\2*cos^2\theta-sin^2\theta-cos^2\theta=0\\cos^2\theta-sin^2\theta=0\\cos2\theta=0\\0^0\leq \theta\leq 360^0\ \ \ \ \Rightarrow\\\left \{ {{2\theta=\frac{\pi }{2}\ |:2 } \atop {2\theta=\frac{3\pi }{2}\ |:2 }} \right. \ \ \ \ \left \{ {{\theta_1=\frac{\pi }{4} } \atop {\theta_2=\frac{3\pi }{4} }} \right. .$

Good luck and have a nice day!

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