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3 years ago

14

Which angles shown in the drawing are supplementary?

2 answers:

koban [17]3 years ago

6 0

The first one is supplementary

ella [17]3 years ago

5 0

The third choice is correct.

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GUMJZF<br> among us code

Vilka [71]

Answer:

bet

Step-by-step explanation:

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If the fifth and sixth terms of a geometric sequence are 8 and 16, respectively, then what is the first term?

kolezko [41]

The answer is B.1/2 since it is just decreasing by half ever time u go back down

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Let t = cosA + sinA<br> find values of t if <br> 2 - sin2A = 2(cosA + sinA)

Zinaida [17]

$2 - \sin(2A) = 2(\cos A + \sin A)\\\\2-2\sin A\cos A=2\cos A+2\sin A\\\\2\sin A\cos A+2\cos A+2\sin A-2=0\\\\1+2\sin A\cos A+2\cos A+2\sin A-3=0\\\\\sin^2 A+\cos^2 A+2\sin A\cos A+2\cos A+2\sin A-3=0\\\\(\sin A+\cos A)^2+2\cos A+2\sin A-3=0\\\\(\sin A+\cos A)^2+2(\cos A+\sin A)-3=0\\\\\\t^2+2t-3=0\\\\t^2+2t+1-4=0\\\\(t+1)^2=4\\\\t+1=2\qquad\vee \qquad t+1=-2\\\\\\\boxed{t=1\qquad\vee\qquad t=-3}$

When $A\in\mathbb{R}$

$t=\cos A+\sin A\in[-\sqrt{2};\sqrt{2}]\approx[-1.4142;1.4142]$

and there is only one answer t = 1.

For $A\in\mathbb{C}$ both values are correct.

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4 years ago

Josh currently bench presses 150lbs. He increases that amount by 10% a month for 3 months. About how much can he bench press now

Jlenok [28]

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3 years ago

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Nezavi [6.7K]

Answer:

The answer is 121.50

Step-by-step explanation:

Multiple 6 by the 20 first so you get 120

Then multiply 6 by the .25 and you get 1.5

So just add 120 with 1.5 and you get 121.50

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