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Nastasia [14]
3 years ago
7

What is the answers 5 b =-20

Mathematics
2 answers:
dlinn [17]3 years ago
7 0
The answer is B=-4 hope this helped
NARA [144]3 years ago
6 0
Just simply divide
ALSO REMEMBER: That if there's one or an odd number of negative in multiplication or division the answer would be negative

-20/5= -4

So
b=  -4
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Which expression represents the factored form of 6x^{2}-13x-5?
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Answer:(2x - 5)(3x + 1)

Step-by-step explanation:

6x^2 - 13x - 5

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3 years ago
A survey of 865 voters in one state reveals that 408 favor approval of an issue before the legislature. Construct the 95% confid
katrin [286]

Answer:

The 95% confidence interval for the true proportion of all voters in the state who favor approval is (0.4384, 0.5050).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

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For this problem, we have that:

n = 865, \pi = \frac{408}{865} = 0.4717

95% confidence level

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.4717 - 1.96\sqrt{\frac{0.4717*0.5283}{865}} = 0.4384

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.4717 + 1.96\sqrt{\frac{0.4717*0.5283}{865}} = 0.5050

The 95% confidence interval for the true proportion of all voters in the state who favor approval is (0.4384, 0.5050).

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3 years ago
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Zigmanuir [339]
The answer is $167.58 you check it be multiplying 3.99x42
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1 year ago
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