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balandron [24]
3 years ago
15

What is the reciprocal of -2 3/8

Mathematics
2 answers:
Juliette [100K]3 years ago
7 0
So the answer is 8/19
Rasek [7]3 years ago
7 0
First of all, reduce to the number to it's simplest fraction form:
-2 3/8 = -19/8

Now, it's reciprocal is: -8/19

In short, Your Answer would be -8/19

Hope this helps!
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7 added to the quotient of 6 and 2
coldgirl [10]
6/2=3+7=10
so
(6/2)+7=10
5 0
3 years ago
We are studying the proportion of cities that have private garbage collector. We want a maximum error of 0.10 and a 95% confiden
True [87]

Answer:

The minimum number of cities we need to contact is 96.

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 interval 1-\alpha, we have the following confidence interval of proportions.

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

In which

Z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error is:

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

95% confidence interval

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.

In this problem, we have that:

p = 0.5, M = 0.1

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

0.1 = 1.96*\sqrt{\frac{0.5*0.5}{n}}

0.1\sqrt{n} = 0.98

\sqrt{n} = 9.8

(\sqrt{n})^{2} = (9.8)^{2}

n = 96

The minimum number of cities we need to contact is 96.

8 0
3 years ago
Molly buys a scooter for $63.00. and robert buys a soccer ball for $24.00.
goblinko [34]
All together they spend $87.00
5 0
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Please help me asap :)!!​
geniusboy [140]

Answer:

EFG = 90 degrees

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Step-by-step explanation:

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What is the recursive rule for the sequence?
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