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3 years ago

Lily begins solving the equation 4(x-1-x=3(x+5)-11. Her work is shown below.

Mathematics

2 answers:

san4es73 [151]3 years ago

7 0

Answer:4

Step-by-step explanation:

morpeh [17]3 years ago

5 0

Answer:

The equation has no solution

Step-by-step explanation:

First you can 3x-4 = 3x+4

+4 +4

You would then get 3x = 3x + 8

Then you would do 3x = 3x + 8

-3x -3x

Which gets you 0=8 which you know is impossible because zero eqauls zero not 8

In conclusion, the answer is the equation has no solutions

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Find the distance CD rounded to the nearest tenth C=(10,-1) and D=(-6,3)

Fynjy0 [20]

Answer:

CD = 16.5

Step-by-step explanation:

To find the distance between two points, use this formula: $L = \sqrt{(x_{2} -x_{1})^{2}+(y_{2} -y_{1})^{2} }$

point C can be info set 1: (10, -1) x₁ = 10 y₁ = -1

point D can be info set 2: (-6, 3) x₂ = -6 y₂ = 3

Substitute the information into the formula

$L = \sqrt{(x_{2} -x_{1})^{2}+(y_{2} -y_{1})^{2} }$

$CD = \sqrt{(-6 -10)^{2}+(3 -(-1))^{2} }$ Simplify inside each bracket

$CD = \sqrt{(-16)^{2}+(4)^{2} }$ Square the numbers

$CD = \sqrt{256+16 }$ Add inside the root

$CD = \sqrt{272}$ Enter into calculator

$CD = 16.5$ Rounded to the nearest tenth, the first decimal

The distance CD is 16.5.

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