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4 years ago

Solve the equation by completing the square. round to the nearest hundredth if necessary. x^2+3x-5=0

Mathematics

1 answer:

elena55 [62]4 years ago

3 0

X=0.85 and -5.85 is the answer, that's all of the work

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A television network is deciding whether or not to give its newest television show a spot during prime viewing time at night. If

Alinara [238K]

Answer:

Test statistic z= 1.708

Step-by-step explanation:

given that a television network is deciding whether or not to give its newest television show a spot during prime viewing time at night. If this is to happen, it will have to move one of its most viewed shows to another slot.

Sample size n = 827

Sample proportion p = $\frac{438}{827} \\=0.5297$

$H_0: p =0.5\\H_a: p >0.5$

(right tailed test)

This is because they would be interested if more than half viewers are ready for the change

Test statistic = Z = p difference/std error

p difference = 0.0297

Std error = $\sqrt{\frac{pq}{n} } \\=\sqrt{\frac{0.5*0.5}{827} } \\=0.0174$

Z =1.708

p valu e= 0.9562

Since p >0.05 we fail to reject H0

Test statistic z= 1.708

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3 years ago

Geoff has had, for a long time, a savings account with an annual interest rate of 3.65%. Now, however, the bank wants to change

nata0808 [166]

Answer:

Step-by-step explanation:

He will lose 0,05% of the profit

12 x 0,3 = 3,6

3,6 - 3,65 = -0,05

5 0

3 years ago

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Zarrin [17]

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4 years ago

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Finger [1]

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Luda [366]

Answer:

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Step-by-step explanation:

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4 years ago