2 years ago

Solve by Completing the Square

Mathematics

1 answer:

guajiro [1.7K]2 years ago

4 0

You have to do -b/2a and put a square at the end of each =. You have to make it equal to 0 first though

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Tell me how you got the answer

Anvisha [2.4K]

Answer:

x = 18; y = 20

Step-by-step explanation:

Triangles KLM and KNO are similar, so the ratios of the lengths of corresponding sides are equal.

KL/KN = LM/NO

10/30 = 6/x

Cross multiply.

10x = 6 * 30

10x = 180

x = 18

KL + LN = KN

10 + y = 30

y = 20

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2 years ago

Select the correct answer. A model rocket was launched from the top of a building. The rocket's approximate height can be modele

garri49 [273]

Answer:

13 seconds.

Step-by-step explanation:

Given

$h = -4.9(t - 13)(t + 2).$

Required

Determine a reasonable solution for t

To do this, we equate h to 0.

$h = -4.9(t - 13)(t + 2).$ becomes

$0 = -4.9(t - 13)(t + 2).$

Divide through by -4.9

$0 = (t - 13)(t + 2).$

Reorder the expression

$(t - 13)(t + 2) = 0.$

Split

$t-13 = 0$ or $t + 2 = 0$

This gives:

$t = 13$ or $t = -2$

But time can't be negative, So:

$t = 13$

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2 years ago

CASLAN UR HERE 56+6x567890-9

sammy [17]

Answer: 35, 209, 171

Step-by-step explanation: hope i helped

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2 years ago

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3. A is a set of points that extends infinitely in both directions.

zvonat [6]

Answer:

line

Step-by-step explanation:

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cliffnotes

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1 year ago

Sarah made $180 for 12 hours of work. At the same rate, how much would he make for 17 hours of work?

lisabon 2012 [21]

Answer:

1260

Step-by-step explanation:

180 x 2

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2 years ago