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zavuch27 [327]
3 years ago
8

Finding factors of a number

Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
5 0
2,4,6,8,10,12,14,16,18,20
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Solve for x. a) 10 b) 12 c) 13 d) 11
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Answer:

A : 10

Step-by-step explanation:

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Why is it practical to know standard diaviation?
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To know how far your values differ apart from the mean of the records
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Sin(x+pi/4)-sin(x-pi/4)=1 solve the equation
evablogger [386]
Sin(α+β)=sin(α)cos(β)+cos(α)sin(β)
sin(α-β)=sin(α)cos(β)-cos(α)sin(β)


sin(x+ \frac{ \pi }{4} )=sin(x)cos\frac{ \pi }{4} +cos(x)sin\frac{ \pi }{4}  \\ sin(x- \frac{ \pi }{4} )=sin(x)cos\frac{ \pi }{4} -cos(x)sin\frac{ \pi }{4}  \\ \\   \\sin(x+ \frac{ \pi }{4} )-sin(x- \frac{ \pi }{4} ) =1 \\ sin(x)cos\frac{ \pi }{4} +cos(x)sin\frac{ \pi }{4}  -(sin(x)cos\frac{ \pi }{4} -cos(x)sin\frac{ \pi }{4}  )=1 \\  sin(x)cos\frac{ \pi }{4} +cos(x)sin\frac{ \pi }{4}  -sin(x)cos\frac{ \pi }{4} +cos(x)sin\frac{ \pi }{4}  =1 \\  cos(x)sin\frac{ \pi }{4} +cos(x)sin\frac{ \pi }{4}  =1 \\
2cos(x)sin\frac{ \pi }{4}  =1    \\ sin\frac{ \pi }{4} = \frac{ \sqrt{2} }{2}  \\ 2cos(x) \frac{ \sqrt{2} }{2}  =1 \\ 2 \cdot \frac{ \sqrt{2} }{2}cos(x)   =1 \\   \sqrt{2} cos(x)=1 \\
cos(x)= \frac{1}{ \sqrt{2} }  \\ x=\pm arccos \frac{1}{ \sqrt{2} }+2 \pi k , k \in Z \\ x=\pm \frac{ \pi }{4} +2 \pi k , k \in Z
6 0
3 years ago
Find the slope of the roofof a home that rises 8 feet for every horizontal change of 24 feet
ira [324]

Answer:

(C).

Step-by-step explanation:

\frac{8}{24} = \frac{1}{3}

4 0
2 years ago
Read 2 more answers
What is the LCM of 16 and 40 ? 24 and 40 ?
andre [41]

Answer:

80 & 120

Step-by-step explanation:

16×5 & 40×2=80

24×5 & 40×3=120

5 0
3 years ago
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