3 years ago

Help on these precalc problems 14-20

1 answer:

7 0

15) factor out cos: cos(x)(sin(x)+1)=0
Now this is true when either cos(x)=0 (x=pi/2 and 3pi/2)
Or when sin(x)=-1 (x=3pi/2)
So it's solutions are pi/2 and 3pi/2

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Find the length of the slide board. Round your answer to the nearest tenth place.

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Answer:

22.8

Step-by-step explanation:

(18²+14²)½

= 22.8

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3 years ago

Solve equestion give i give you 20 points

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Answer:

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Equation: 4x - 6 = -46

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4x - 6 = -46

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MArishka [77]

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1 year ago

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1-5. Find the coordinates of the center and the measure of the radius for a circle whose equation is, 1. (x-8)^2+(y+4)^2=12 2. (

Ksju [112]

Answer:

1. (8,-4), sqrt(12) = 2×sqrt(3)

2. (-8,4), 9

3. (0,5), 3

4. (-4,-5), 8

5. (7,3), 12

6. x^2 + (y+5)^2 = 49

7. (x-6)^2 + (y+1)^2 = 144

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9. (0-0)^2 + (7-3)^2 = r^2

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=> r = 4

Step-by-step explanation:

remember, the general equating of a circle is

(x-h)^2 + (y-k)^2 = r^2

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3 years ago