3 years ago

Answer these please thank you

Mathematics

1 answer:

xxMikexx [17]3 years ago

7 0

Answer:

reactivity

Step-by-step explanation:

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What is the image of the point (2,3) after a rotation of 180° counterclockwise

KonstantinChe [14]

Answer:

(2,3) becomes A'(-2,-3)

Step-by-step explanation:

Using the 180 cc rotation rule (x,y) --> (-x,-y). Points 2 and 3 become negative resulting in (-2,-3)

8 0

2 years ago

If cos θ = .62 and if 0<θ<90 what is the approximate value of sin θ to the nearest hundredth

Deffense [45]

$\cos\Theta=0.62\\\\\text{Use:}\ \sin^2\alpha+\cos^2\alpha=1\\\\\sin^2\Theta+(0.62)^2=1\\\\\sin^2\Theta+0.3844=1\ \ \ |-0.3844\\\\\sin^2\Theta=0.6156\to\sin\Theta=\pm\sqrt{0.6156}\\\\\sin\Theta_1\approx-0.78\ \vee\ \sin\Theta\approx0.78\\\\\Theta\in(0^o;\ 90^o),\ therefore\ \sin\Theta \ \textgreater \ 0\to\boxed{\sin\Theta\approx0.78}$