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3 years ago

How to solve x in the equation 9x over 2 - 6=5

Mathematics

1 answer:

drek231 [11]3 years ago

3 0

Step-by-step explanation:

$\frac{9x}{2} - 6 = 5 \\ \\ \therefore \: \frac{9x}{2} = 5 + 6 \\ \\ \therefore \: \frac{9x}{2} = 11 \\ \\ \therefore \: 9x = 11 \times 2 \\ \\ \therefore \: 9x = 22 \\ \\ \therefore \: x = \frac{22}{9} \\ \\ \therefore \: x = 2 \frac{4}{9}$

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3 years ago

Endpoint given the Midpoint: * The midpoint of RP is M(2, 4). If one of the end points is R(-1,7), find the coordinates of the o

marin [14]

Answer:

The coordinates of other point are: (5,1)

Step-by-step explanation:

Given coordinates are:

M(x,y) = (2,4)

R(x_1,x_2) = (-1,7)

We have to find the coordinates of other point (x2,y2)

The formula for mid-point is given by:

$M(x,y) = (\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2})$

Putting the values we get

$(2,4) = (\frac{-1+x_2}{2}, \frac{7+y_2}{2})$

Putting respective elements equal

$\frac{-1+x_2}{2} = 2\\-1+x_2 = 2*2\\-1+x_2 = 4\\x_2 = 4+1\\x_2 = 5\\And\\\frac{7+y_2}{2} = 4\\7+y_2 = 4*2\\7+y_2 = 8\\y_2 = 8-7\\y_2 = 1$

Hence,

The coordinates of other point are: (5,1)

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3 years ago

Please show your work<br> What is the solution of the equation <img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B2x%2B13%7D%20-5%3D

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Add the five to each side.
then square it to get rid of the square root
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(x+6)(x+2)
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answers are -2 and -6, however, when pluging -6 in it doesnt work, so it is only -2.

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Circumference/Diameter = pi = 3.14
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3 years ago