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notsponge [240]
3 years ago
14

Does this set of ordered pairs represent a function? Why or why not? {(–1, 5), (0, –3), (2, 7), (4, 0), (7, 5)} A. No, because t

wo of the y-values are the same. B. No, because one x-value corresponds to two different y-values. C. Yes, because every x-value corresponds to exactly one y-value. D. Yes, because there are two x-values that are the same.
Mathematics
1 answer:
iVinArrow [24]3 years ago
4 0

9514 1404 393

Answer:

  C. Yes, because every x-value corresponds to exactly one y-value.

Step-by-step explanation:

The list of x-values is {-1, 0, 2, 4, 7}. We note that no two are the same, so this is a functional relation.

The set of ordered pairs is a function because each x-value corresponds to exactly one y-value.

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Please help me with this ok Brainliests.<br>​
PilotLPTM [1.2K]

Answer:

Part 2

A. 10

B. 20

C. 15.4

Part 3

A. 96

B.96

C.24

D. 12

Step-by-step explanation:

I am not sure of the last part but I hope the first to help you

for the area of a triangle it is b*h*1/2 and for a rectangle it is bh

3 0
2 years ago
Answer #1 please ASAP
Ad libitum [116K]

Answer:

4.5

Step-by-step explanation:

To find the median, put the data in order from smallest to largest

1,2,2,3,4,4,5,5,8,10,10,11

The count up the number of data points

12

Divide by 2

12/2

Split the data into 2 groups, 6 in each, starting at the beginning

1,2,2,3,4,4,   5,5,8,10,10,11

Since there is an even number

Add the last number in first group and the first number in the last group and divide by 2

(4+5)/2 = 9/2 = 4.5

The median is 4.5

6 0
3 years ago
Read 2 more answers
Days/ cost to rent a truck 1/34 2/50 3/66 4/82 A/ C=16d B/ C= 16d + 18 C/ C= 16d + 16 D/ C=18d + 16
Mamont248 [21]
Use the given information as (x, y) points.
You have
(1, 34)
(2, 50)
(3, 66)
(4, 82)
The difference between renting for 1 day and 2 days is 50 - 34 = 16.
The difference between renting for 2 days and 3 days is 66 - 50 = 16
The difference between renting for 3 days and 4 days is 82 - 66 = 16
For each day you rent you pay $16.
Now look at renting for 1 day.
The rental for 1 day is $16, but for 1 day you pay $34.
$34 - $16 = $18
There is an extra $18 in the rental for every day. The $18 is fixed.
That means, to rent a truck, you must pay a fixed amount of $18 plus $16 per day.

total cost = daily cost + fixed cost
total cost =       16d    +      16
c = 16d + 18
3 0
3 years ago
Read 2 more answers
A statue is mounted on top of a 21 foot hill. From the base of the hill to where you are standing is 57feet and the statue subte
AleksandrR [38]

Please find the attached diagram for a better understanding of the question.

As we can see from the diagram,

RQ = 21 feet = height of the hill

PQ = 57 feet = Distance between you and the base of the hill

SR= h=height of the statue

\angle SPR=Angle subtended by the statue to where you are standing.

\angle x=\angle RPQ= which is unknown.

Let us begin solving now. The first step is to find the angle \angle x which can be found by using the following trigonometric ratio in \Delta PQR :

tan(x)=\frac{RQ}{PQ} =\frac{21}{57}

Which gives \angle x to be:

\angle x=tan^{-1}(\frac{21}{57})\approx20.22^{0}

Now, we know that\angle x and \angle SPR can be added to give us the complete angle \angle SPQ in the right triangle \Delta SPQ.

We can again use the tan trigonometric ratio in \Delta SPQ to solve for the height of the statue, h.

This can be done as:

tan(\angle SPQ)=\frac{SQ}{PQ}

tan(7.1^0+20.22^0)=\frac{SR+RQ}{PQ}

tan(27.32^0)=\frac{h+21}{57}

\therefore h+21=57tan(27.32^0)

h\approx8.45 ft

Thus, the height of the statue is approximately, 8.45 feet.

3 0
3 years ago
3.) Find the domain and range for each of the following functions.
Delvig [45]
Domain is x’s and range is y’s.

For a, the domain is -2<=x<1
For a, the range is 1<=y<2

For b, the domain is 1<=x<=2
For b, the range is -2<=y<=2

(The <= is the ones with a line under, meaning equal to, if that makes sense. So write with a line under rather than equal sign)
Hope this helps!
6 0
3 years ago
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