2 years ago

Is it 1 2 3 or 4 look at file drop

Mathematics

1 answer:

irinina [24]2 years ago

8 0

Answer:

D (4,8)

Step-by-step explanation:

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3 years ago

The square root of 181 lies between?

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Answer: 13 and 14

Step-by-step explanation:

13^2=169

14^2=196

181 is between 169 and 196.

Thus, the square root of 181 is between 13 and 14

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3 years ago

X^{2}-7x-25=0 to the nearest tenth

shepuryov [24]

Answer:

x = 9.6

x = - 2.6

Step-by-step explanation:

$x=\frac{-b±\sqrt{b^{2}-4ac } }{2a}$

Ignore the before the ± it wouldn't let me type it correctly.

x² - 7x - 25 = 0

a = 1

b = - 7

c = - 25

$x=\frac{-(-7)±\sqrt{-7^{2}-4((1)(-25)) } }{2(1)}$

$x=\frac{7±\sqrt{49-4((1)(-25)) } }{2(1)}$

$x=\frac{7±\sqrt{49+100 } }{2(1)}$

$x=\frac{7±\sqrt{149 } }{2}$

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Two separate equations

$x=\frac{7+12.2}{2}$

$x=\frac{7-12.2}{2}$

$x=\frac{7+12.2}{2}$

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3 years ago

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