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ella [17]
3 years ago
7

2. Which equation has no solution? *

Mathematics
1 answer:
shutvik [7]3 years ago
7 0

Answer:

5(x+1) - 3x = 5 - 2(5-x)

Step-by-step explanation:

This has no solution. Explanation:

5(x+1) - 3x = 5 - 2(5-x)

5x + 5 - 3x = 5 -10 + 2x

2x + 5 = -5 + 2x

5 = -5

From the result above, clearly there is no x to satisfy the equation, because 5 (to the left) can never be the same as -5 (to the right).

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Answer:

<h2>M(-a, b)</h2>

Step-by-step explanation:

Use the formula of a midpoint:

\left(\dfrac{x_1+x_2}{2},\ \dfrac{y_1+y_2}{2}\right)

We have the points P(-2a, 0) and Q(0, 2b). Substitute:

x=\dfrac{-2a+0}{2}=\dfrac{-2a}{2}=-a\\\\y=\dfrac{0+2b}{2}=\dfrac{2b}{2}=b

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3 years ago
(pages 2-7)
user100 [1]

Answer:

The answer is here

Step-by-step explanation:

https://www.khanacademy.org/test-prep/praxis-math/praxis-math-lessons/gtp--praxis-math--lessons--geometry/a/gtp--praxis-math--article--congruence-and-similarity--lesson

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3 years ago
What is the distance between point C and point D?
e-lub [12.9K]

Answer:

B. 13 units

Step-by-step explanation:

let

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(x2 , y2) = (1 , 6)

distance between CD = root (x2 - x1)^3 + (y2 - y1)

= root {1 - ( -4)}^2 + {6 - ( -6)}^2

= root {1 +4}^2 + {6+6}^2

= root 5^2 + 12^2

= root 25 + 144

= root 169

= 13 units ans

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Answer:

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Step-by-step explanation:

I find it easier to look at the graph, rather than mess with the coordinate transformations. Each image point is the same distance from the line of reflection that its pre-image point is. The line joining the two points is perpendicular to the line of reflection.

See attached for the reflected points.

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The red and turquoise dashed lines are the lines y=x and y=-x, respectively. The same-colored arrows show the reflection of the relevant point.

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The transformations of interest are ...

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