3 years ago

Solve x^2−2x=5 by completing the square. Round your answer to the nearest hundredth.

Mathematics

1 answer:

Masja [62]3 years ago

3 0

Answer: i dont see a square

Step-by-step explanation:

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Allen is running a marathon. He would like to finish the race in under 5.5 hours. He has already run 3 hours. The inequality rep

AlexFokin [52]

Answer:

x < 2.5

Step-by-step explanation:

Allen has already run 3 hours and will run x amount more to finish. This is 3+x. He must finish under or less than 5.5 hours. So 3 + x < 5.5. You solve and find x < 2.5.

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3 years ago

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Simplify the expression by adding or subtracting the linear expressions. 7x + 9x + 8 + 4x + 5 *

Lady_Fox [76]

Answer:

Step-by-step explanation:

7x+9x+4x+8+5=20x+13

20+13.

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4 0

3 years ago

Can somebody explain this to

beks73 [17]

Check the picture below.

$slope = m = \cfrac{rise}{run} \implies \cfrac{ f(x_2) - f(x_1)}{ x_2 - x_1}\impliedby \begin{array}{llll} average~rate\\ of~change \end{array}\\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \begin{cases} x_1=0\\ x_2=2 \end{cases}\implies \cfrac{f(x_2)-f(x_1)}{2-0}\implies \cfrac{0~~ - ~~1}{2}\implies -\cfrac{1}{2}$