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Thepotemich [5.8K]
3 years ago
7

Determine whether or not the set is well defined. (x l x is an expensive boat on the Great Lakes)

Mathematics
1 answer:
Natasha_Volkova [10]3 years ago
8 0
A, well defined.

Hope this helps!
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NemiM [27]
It represents a function
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Please help ASAP lol
MAXImum [283]
B and C are the correct answers
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3 years ago
The distribution of passenger vehicle speeds traveling on a certain freeway in California is nearly normal with a mean of 73.7 m
Schach [20]

Answer:

A) 90.32%

B) 90.11%

C) 81.546 miles per hour

D)77.93%

Step-by-step explanation:

Given data:

speed  = 73.7 miles/hour

standard deviation = 4.77 miles /hour

a) P(X< 80) = P(z< \frac{80 - 73.7}{4.77}

                   = P (z< 1.31)

                   = 0.90320  = 90.32%

b) P(60 < X< 80) = P(\frac{60 - 73.7}{4.77} < z< \frac{80 - 73.7}{4.77})

                   = P (-2.872< z< 1.31)

                   = P (z<1.31) - P(z<-2.87)

                   = 0.90320 - 0.00205

                   = 0.90115  = 90.11%

c) P(X <X) = 0.95

    z = 1.645

\frac{x - 73.7}{4.77} = 1.645

x = 81.546  miles per hour

d)P(X< 70) = P(z> \frac{70 - 73.7}{4.77})

                   = P (z> -0.775)

                   = 0. 0.7793  = 77.93%

4 0
3 years ago
Zoey wants to use her iPad throughout a 6-hour flight. Upon takeoff, she uses the iPad for 2 hours and notices that the battery
lilavasa [31]

Answer:

The answer is c. 8 hours

Step-by-step explanation:

Since her battery dropped 25% in 2 hours then for it to drop 100% would take 8 hours.

25%+25%+25%+25%= 100%

so with this logic

25%= 2 hours

2+2+2+2=8

Hoped this helped !

Cheers, Z

7 0
3 years ago
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For the graph of the inequality x - 2y &gt;4, what is a value of x for a point that is on the
Colt1911 [192]

Answer:

Step-by-step explanation:

Explanation:

First, find two points on the line if you change the inequality to an equation.

For  

x

=

0

:  

0

+

2

y

=

4

2

y

=

4

2

y

2

=

4

2

y

=

2

or  

(

0

,

2

)

For  

y

=

0

:  

x

+

0

=

4

x

=

4

or  

(

4

,

0

)

We can plot these two points and draw a line through them to get the border of the inequality:

graph{(x^2+(y-2)^2-0.075)((x-4)^2+y^2-0.075)(x+2y-4)=0}

The line will be solid because the inequality operator has a "or equal to" clause in it. We can now shade the area to the right of the line because the inequality has a "great than" clause in it.

graph{(x+2y-4)>=0}

4 0
2 years ago
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