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icang [17]
3 years ago
10

Help pls!!!!!!!!!!!!!!

Mathematics
1 answer:
Sholpan [36]3 years ago
8 0

Answer:

46°

Step-by-step explanation:

tan Ф = 21/20

Ф = tan-1 (21/20)

= 46°

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For the following problem, assume that all given angles are in simplest form, so that if A is in QIV you may assume that 270° &l
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Answer:

Step-by-step explanation:

Given that angle A is in IV quadrant

So A/2 would be in II quadrant.

sin A = -1/3

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(cos A is positive since in IV quadrant)

Using this we can find cos A/2

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A package contains 6 cups of cereal. Each serving is 1/4 cup of cereal. How many serving are there in all?
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3 years ago
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3 years ago
3x^2 -5x -2=0
Kipish [7]

Answer:

Step-by-step explanation:

1. Find two numbers that add to make the coefficient of x (in this case, -5) and that multiply to make the constant term multiplied by the coefficient of x^2 (in this case, -2 x 3 = -6)

Two numbers that work are -6 and +1

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2. Split the middle term into the two numbers that you found.

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I've put the -6 on the left side because in our next step, when we factorise, it will be easier than having the numbers the other way around.

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3 years ago
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Answer

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