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Alex Ar [27]
3 years ago
12

PLEASE HELP ME IT HAS BEEN A VERY ROUGH MORNING THANK YOU!

Mathematics
1 answer:
IgorLugansk [536]3 years ago
3 0

Answer: D

Step-by-step explanation:

10/2=5

15/3=5

20/4=5

15/5=3

D doesn’t belong.

Hope this helps :)

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If cos theta=-2/3, which of the following are possible (Help asap)
alexgriva [62]

Answer:

The correct option is B) sin\theta=\frac{\sqrt{5}}{3} and tan\theta=\frac{\sqrt{5}}{2}

Step-by-step explanation:

given cos\theta=-\frac{2}{3}

Since, cos\theta=\frac{base}{hypoteneous}

it means prependicular of right angled triangle can be calculated by pythagoras theorem as:

base² + prependicular² = hypoteneous²

      2²  + prependicular² = 3²

       4  + prependicular² = 9

              prependicular² = 9 - 4

               prependicular² = 5

               prependicular = √5

                 

Since, sin\theta=\frac{prependicular}{hypoteneous}

sin\theta=\frac{\sqrt{5}}{3}

Since, tan\theta=\frac{prependicular}{base}

tan\theta=\frac{\sqrt{5}}{2}

Hence, the correct option is B) sin\theta=\frac{\sqrt{5}}{3} and tan\theta=\frac{\sqrt{5}}{2}

6 0
3 years ago
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nydimaria [60]

Answer:

120

Step-by-step explanation:

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Given that f(x)=x-3 and g(x)=x^2-x, find (f+g)(-2)​
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Answer:

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