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Alex787 [66]
3 years ago
6

How do you solve for x in this problem?

Mathematics
2 answers:
madam [21]3 years ago
8 0

Yo sup??

You can solve this problem by applying the cosine rule ie

a²=b²+c²-2bccosx

x²=11²+8²-2*11*8cos16

=121+64-169.2

=15.8

x=√15.8

=4  (approx)

Hope this helps.

irina [24]3 years ago
4 0

Answer: you will use the cosine rule

Step-by-step explanation:

x^2=11^2+8^2-2(11)(8)xcos(16)

x^2=185-169.18

x^2=15.8

Take square root

x=3.96 or 4

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A mirror should be centered on a wall. The mirror is 36 inches wide and the wall is 18 feet wide. Which equation helps determine
Lera25 [3.4K]

Linear equation is the equation in which the highest power of the unknown variable is always 1.The equation which helps determine the distance x on each side of the mirror is ,

x+3+x=18.

<h3>Given information-</h3>

The length of the mirror is 36 inches.

The length of the wall is 18 feet.

The linear equation has to find out for the distance <em>x.</em>

<em />

<h3>Linear equation-</h3>

Linear equation is the equation in which the highest power of the unknown variable is always 1.

As one feet is equal to the 12 inches. Thus the length l of the mirror in the feet is,

l=\dfrac{36}{12}

l=3

The mirror is 3 feet wide.

The distance on each side of the mirror is <em>x. </em>This distance is equal at both side as the mirror is centered. The distance on each side of the mirror is,

=x+x.

Now the the wall is 18 feet wide which is equal to the distance each side of the mirror and the distance of the mirror. As the mirror is 3 feet wide. Thus the equation which determine the distance x on each side of the mirror can be given as,

x+3+x=18

Hence the equation which helps determine the distance x on each side of the mirror is ,

x+3+x=18.

Learn more about the linear equation here;

brainly.com/question/2263981

7 0
3 years ago
Miguel owns 4 types of sport socks and 2 pairs of running shoes , how many combinations of socks and shoes does he have ?
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32 <span>combinations of socks and shoes does </span>
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PLS , help me asap :(( , im so frustrated , idk how to do these :c
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Answer:

y intercept = 5

Step-by-step explanation:

In analytic geometry, using the common convention that the horizontal axis represents a variable x and the vertical axis represents a variable y, a y-intercept or vertical intercept is a point where the graph of a function or relation intersects the y-axis of the coordinate system. As such, these points satisfy x = 0.

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3 years ago
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Addition is the inverse of subtraction and multiplication is the inverse of division.

Ex:  1+1 = 2,  2-2 = 0

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3 years ago
Solve the simultaneous equations for x and y: 4 x + 3 y = − 12 2 x − 3 y = 30
Oliga [24]

Answer:

Step-by-step explanation:

4x + 3y = -12    -----------------(I)

2x - 3y  = 30    ----------------(II)

Add the equations. So, y will be eliminated and we can find the value of x

4x + 3y = -12

<u>2x  - 3y = 30 </u>

6x        =  18

x = 18/6

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Plug in the value of x in equation (I)

4*3 + 3y = -12

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        y = -24/3

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