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Len [333]
3 years ago
11

What is the equation of the graph?

Mathematics
2 answers:
sergejj [24]3 years ago
8 0
She is most certainly right. the answer is.

x=-4
Inessa05 [86]3 years ago
3 0
X=-4 is the answer because all of the points of the line are x=-4
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What is it called when a columns filled with pairs of numbers that have the same ratio?
Furkat [3]
That is a ratio table.
5 0
3 years ago
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**50 pts**I mark brainliest**<br><br> M&lt;2=34 degrees. find m&lt;4 and explain how you know.
stira [4]

Answer:

angle 4 = 34 degrees

Step-by-step explanation:

angle 4 is equal to angle 2 because it is an alternate interior angle of 34 degrees.

6 0
3 years ago
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Mr. Sutherland has 824 pencils in his desk.
VARVARA [1.3K]

Answer:

6 weeks

Step-by-step explanation:

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3 0
3 years ago
How do find the general solution of sin7A=sinA+sin3A
const2013 [10]

Step-by-step answer:

Solve  

sin(7a) = sin(3a) + sin(a) ..................(1)

Let  

F(a)=sin(7a)-sin(3a)-sin(a)..................(2)

the equivalent problem to (1) is  

F(a)=0 ......................................(3)

F(a)

=sin(7a)-sin(3a)-sin(a)....apply trig sum identities

=sin(6a+a) - sin(3a) - sin(a)

=sin(6a)cos(a)+cos(6a)sin(a) -sin(3a) - sin(a)

apply double angle formulas

=(2sin(3a)cos(3a))cos(a) +

(cos^2(3a)-sin^2(3a))sin(a) -sin(3a) - sin(a)

simplify using sin^2(p)+cos^2(p) = 1

= (2sin(3a)cos(3a))cos(a) +

(1-2sin^2(3a))sin(a) - sin(3a) - sin(a)

simplify algebraically, note 1*sin(a) cancels sin(a)

= (2sin(3a)cos(3a))cos(a) -2sin^2(3a)sin(a) - sin(3a)

factor out sin(3a)

= sin(3a)(2cos(3a)cos(a)-2sin(3a)sin(a) - 1)

now use trig sum formula to reduce to cos(4a)

= sin(3a)(2cos(4a)-1)

So

F(a) = 0   if sin(3a) =0 ...................(4)

or

F(a) = 0   if cos(4a) = 1/2 ................(5)

using the zero product theorem

From (4)

sin(3a) = 0  

3a = sin-1(0) = n*pi

a = n*pi/3  ................................(6)

From (5)

cos(4a) = 1/2

4a = cos^-1(1/2) = 2n*pi +/- pi/3

a = (2n+1/3)pi/4 or (2n-1/3)pi/4............(7)

Combine (6) and (7) to give the general solution

a = n*pi/3 or (2n+1/3)pi/4 or (2n-1/3)pi/4 .....(8)

For checking, use your calculator to substitute every solution given in (8) into the function F(a) in equation (1) to confirm that the result is almost equality.  The small difference will be due to rounding errors of the calculators.  On mine, they work out to be of the order of +/- 10^-15.

6 0
3 years ago
(Idk what's wrong wiv me today.. :p cant even do my lil yr 1 sisters hw..)
Ann [662]
3 tens
that means the tens place is a 3
2nd degit is below 8 so can be 7,6,5,4,3,2,1,0
even, means it ends with 8,6,4,2,0
th enumber could be
30,32,34,36

4 0
3 years ago
Read 2 more answers
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