2 years ago

What is the intermediate step in the form (x + a)2 = b as a result of completing the

Mathematics

1 answer:

Eddi Din [679]2 years ago

8 0

Answer:

(x + 7)^2 = 64

Step-by-step explanation:

x^2 + 23x – 19 = 9x - 4

x^2 + 23x - 9x = -4 + 19

x^2 + 14x = 15 = 0

Completing the square:

(x + 14/2)^2 - (14/2)^2 = 15

(x + 7)^2 - 49 = 15

(x + 7)^2 = 64

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lubasha [3.4K]

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Step-by-step explanation:

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3 years ago

(-3, -2) (2, 1) Find the slope

Nimfa-mama [501]

Answer:

for just the slope its 3/5 or in decimal its .6

Step-by-step explanation:

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Step-by-step explanation:

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3 years ago

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MissTica

The second to last one, looks like a really tall speed bump

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3 years ago

There are 1200 students at a school and 390 of them are boys if each classroom holds 30 students how many classrooms are needed

vodomira [7]

Answer:

40 classrooms

Step-by-step explanation:

Divide 1200 by 30.

1200÷30=40

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2 years ago