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luda_lava [24]
3 years ago
13

A ticket to a sporting event cost 9.25 write the expression to represent the cost for t number of tickets and the cost for 23 ti

ckets
Mathematics
1 answer:
NeTakaya3 years ago
5 0
T(x)= 9.25x
t(23)=212.75
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Water use in the summer is normally distributed with a mean of 311.4 million gallons per day and a standard deviation of 40 mill
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Answer: 0.965

Step-by-step explanation:

Given : Water use in the summer is normally distributed with

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\sigma=40 \text{ million gallons per day}

Let X be the random variable that represents the quantity of water required on a particular day.

Z-score : \dfrac{x-\mu}{\sigma}

\dfrac{350-311.4}{40}=0.965

Now, the probability that a day requires more water than is stored in city reservoirs is given by:-

P(x>350)=P(z>0.965)=1-P(z

We can see that on comparing the above value to the given P(X > 350)= 1 - P(Z < b) , we get the value of b is 0.965.

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A light bulb consumes 15300 watt-hours in 4 days and 6 hours . How many watt-hours does it consume per day?
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Answer:

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Answer:

<h2>E. 22</h2>

Step-by-step explanation:

<em>Look at the picture</em>.

The lines <em>l</em> and <em>m</em> are parallel, therefore alternate interior angles are congruent.

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Therefore

(5x-16)+\theta=180          <em>add 16 to both sides</em>

5x+\theta=196         <em>subtract 5x from both sides</em>

\theta=196-5x

We know: the sum of the triangle angle measures is 180°.

Therefore we have the equation:

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