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2 years ago

2x squared plus negative 5 - 10 equals zero

2 answers:

8 0

2x² + (-5) - 10 = =
2x² - 5 - 10 = 0
2x² - 15 = 0
 + 15 + 15
 2x² = 15
 2 2
 x² = 7.5
 x ≈ 2.74

Basile [38]2 years ago

7 0

X² will be 7.5 i think the person who answered it below did a very good job congratulation

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Alternative hypothesis : $H_{a}: p$

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sample proportion : $\hat{p}=\dfrac{295}{390}=0.7564$

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