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3 years ago

6

the coordinates of one point of a line segment are (-2,-7). The line segment is 12 units long. Give three possible coordinates o

f the line segment’s other end point.

1 answer:

valentinak56 [21]3 years ago

4 0

(-2,-19) , (-2, 5), ( 2,10)

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In an article about the cost of health care, USA Today reported that a visit to a hospital emergency room has a mean cost of $14

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Answer: 0.8461

Step-by-step explanation:

Given : $\mu=144\ \ ; \sigma=392$

Let x be the random variable that represents the cost for the hospital emergency room visit.

We assume that cost for the hospital emergency room visit is normally distributed .

z-score for x=1000 ,

$z=\dfrac{1000-1400}{392}\approx-1.02\ \ \ [\because z=\dfrac{x-\mu}{\sigma}]$

Using z-value table , we have

P-value =P(x>1000)=P(z>-1.02)=1-P(z≤ -1.02)=1-0.1538642

=0.8461358≈0.8461 [Rounded nearest 4 decimal places]

Hence, the probability that the cost will be more than $1000 = 0.8461

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3 years ago

the penguin nursery is open two times a day 2/3 hour at noon and 5/12 hour in the afternoon.How much time is the penguin nursery

KonstantinChe [14]

2/3x4/4= 8/12
8/12+5/12=13/12
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2 years ago

WILL MARK BRAINLIEST. Can someone help me wit des 2 questions?

Mnenie [13.5K]

Answer:

Zero is a number that can be equal to its opposite.

So, the given equation has solution for which LHS=RHS=0.

Step-by-step explanation:

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Let x represent the number of hours you read a book and y the total number of pages you have read,You already read 70 pages and

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X=number of hours you read
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y=30x+70
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therefore, 160 pages after 3 hours
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Answer:

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