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Artyom0805 [142]
3 years ago
14

Help whit number 6 please! Really fast !!

Mathematics
1 answer:
ololo11 [35]3 years ago
7 0

Answer:

0 and 4

Step-by-step explanation:

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You and your friend caught 36 sunfish in lake Okeechobee the number y of sunfish by your friend is 8 more than the number x caug
kotykmax [81]
8x+x=36
9×=36
x=4
why 20 characters
4 0
4 years ago
Helppp!!!! please!!!
Annette [7]

Answer: 2) 1767.1

Step-by-step explanation:

For a sphere, V=(4 /3)πr^3.  A diameter is 2r.  Thus the radius of the circle is 7.5 inches.  Thus, the volume is about 1767.15.

Hope it helps <3

6 0
3 years ago
Solve this equation using sum to product formulas: cos3x + sin2x - sin6x + cos5x = 0
Softa [21]
<h2><u>Answer:</u></h2>

x=(nπ/2)±15

x=(2nπ+90)/3

x=90-2nπ

<h2><u>Steps:</u></h2>

cos3x+sin2x-sin6x+cos5x=0

(cos3x+cos5x)+(sin2x-sin6x)=0

equation(1)

<u>Use formula:</u>

\cos(c)  +  \cos(d)  = 2 \cos( \frac{c + d}{2} ) . \cos( \frac{c - d}{2} )

\sin(c)  -  \sin(d)  = 2  \cos( \frac{c + d}{2} ) . \sin( \frac{c - d}{2} )

<u>So in equation (1),if c=3x ,d=5x,C=2x,D=6x</u>

》2cos{(c+d)/2}.cos{(c-d)/2}+2cos{(C+D)/2}.sin{(C-D)/2}=0

》2cos{(3x+5x)/2}.cos{(3x-5x)/2}+2cos{(2x+6x)/2}.sin{(2x-6x)/2}=0

》2cos(4x).cos(-x)+2cos(4x).sin(-2x)=0

》2cos(4x)[cos(-x)+sin(-2x)]=0

》2cos(4x)[cos(x)-sin(2x)]=0

<u>1)</u><u> </u><u>Either:</u>

2cos(4x)=0

cos(4x)=0/2

cos(4x)=0

cos(4x)=cos(90)

General solution for such case is:X=2n±a

So,

4x=2nπ±90

x=(2nπ±90)/4

x=(nπ/2)±15

<u>2) Or:</u>

cos(x)-sin(2x)=0

cos(x)=sin(2x)

General solution for such case is:X=2n±a

So,

x=2nπ±(90-2x)

x=2nπ±90±2x

x±2x=2nπ±90

<u>Take +ve sign,</u>

x+2x=2nπ+90

3x=2nπ+90

x=(2nπ+90)/3

<u>Take -ve sign,</u>

x-2x=2nπ-90

-x=2nπ-90

x=(2nπ-90)/(-1)

x=90-2nπ

4 0
3 years ago
Read 2 more answers
Which subsets of numbers does 1 2/3 belong to?
lana [24]
<h2>Answer:</h2>

<u>- Real and rational number</u>.

<h2>Step-by-step explanation:</h2>

<em>It's a rational number because it can be represented by the integer of integer numbers. It's also a real number because rational numbers belong to the real set of numbers and the number doesn't contain an imaginary component (i).</em>

<em />

<em>It's not a natural or whole number because it can't be used to count or order things.</em>

<em>It's not an integer because it can't eb written without using a fractional component.</em>

<em />

7 0
1 year ago
Pn=1/3pn-1 and p4=108 , then p6= ? please show steps
Natali5045456 [20]
p_n=\dfrac13p_{n-1}
\implies p_n=\dfrac13\left(\dfrac13p_{n-2}\right)=\dfrac1{3^2}p_{n-2}
\implies p_n=\dfrac13\left(\dfrac13p_{n-3}\right)=\dfrac1{3^3}p_{n-3}

and so on, up to

p_n=\dfrac1{3^{n-4}}p_4=\dfrac{108}{3^{n-4}}

which means

p_6=\dfrac{108}{3^{6-4}}=\dfrac{108}9=12
6 0
3 years ago
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