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3 years ago

Is 0=(x+4)^2-7 rational or irrational

Mathematics

1 answer:

JulsSmile [24]3 years ago

8 0

Answer:

Irrational.

Step-by-step explanation:

0=(x+4)^2-7

(x + 4)^2 = 7

Taking square roots:

x + 4 = ±√7

x = -4 ±√7

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aivan3 [116]

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4 years ago

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horrorfan [7]

Answer:

Solution given:

For finished box

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3 years ago

You plan to take $450 U.S on a trip to South Africa. How many rands is this if one U.S dollar equals 3.70 rands ?

kakasveta [241]

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4 years ago

Read 2 more answers

If the square of a positive integer is added to 55 times the integer, the result is 336336. find the integer.

kompoz [17]

The square of a positive integer added to 4 times the integer is 437..

x2 + 4x = 437

I chose to do this by completing the square..

x2+4x+4 = 437 + 4
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Take square root of both sides

x+2 = ±√441
x = -2 ± 21

x = -23 or x = 19
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3 years ago

Can somebody please help with these questions. i really need help :)

alekssr [168]

Answer:

Step-by-step explanation:

a- no u don't need to know

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4 years ago