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2 years ago

How can I solve a mapping diagram and determine if there a function or not

Mathematics

2 answers:

kvasek [131]2 years ago

8 0

Answer:

A mapping diagram can be used to represent a relationship between input values and output values. A mapping diagram represents a function if each input value is paired with only one output value.

Step-by-step explanation:

ch4aika [34]2 years ago

5 0

To check if a relation is a function, given a mapping diagram of the relation, use the following criterion: If each input has only one line connected to it, then the outputs are a function of the inputs.

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Jennifer walks 9 blocks south and 5 blocks west. Approximately how many blocks is she from home if she were to take a direct pat

rodikova [14]

9514 1404 393

Answer:

10.3

Step-by-step explanation:

Assuming the blocks are square, we can use the Pythagorean theorem to find the diagonal distance.

d² = 9² +5² = 81 +25 = 106

d = √106 ≈ 10.3

Jennifer is about 10.3 blocks from home.

5 0

2 years ago

Skate Land charges a $50 flat fee for birthday party rental and $5.50 for each person. Joann has no more than $100 to spend on t

miv72 [106K]

9 people because you subtract 50 from 100 then divide 50 divided bt 5.50. its not a flat out number so you have to round down to 9.

3 0

2 years ago

Read 2 more answers

If y = 124 and x = 12, find y when x = -24.

tatyana61 [14]

Answer:

y = -248

Step-by-step explanation:

Hi there!

Set up a proportion:

$\displaystyle\frac{124}{12} =\frac{y}{-24}$

Cross-multiply:

$12y=(-24)(124)\\12y=-2976\\y=-248$

I hope this helps!

7 0

2 years ago

What is the 7th term of the geometric sequence where a1 = -625 and a2 = 125

kykrilka [37]

Since the sequence is geometric, there is some constant $r$ such that the sequence is recursively given by

$a_n=ra_{n-1}$

By this definition, you can recursively substitute into the right hand side the definition for $a_{n-1},a_{n-2},\ldots$ to find an explicit formula for the $n$ th term.

$a_n=ra_{n-1}=r^2a_{n-2}=r^3a_{n-3}=\cdots=r^{n-1}a_1=-625r^{n-1}$

You know the second term, which means you can find $r$ :

$a_2=-625r^{2-1}\implies125=-625r\implies r=-\dfrac15$

So, the 7th term of the sequence is

$a_7=-625\left(-\dfrac15\right)^{7-1}=-\dfrac1{25}$

8 0

3 years ago

What is the average of 45 and 19

Furkat [3]

$\frac{45+19}{2} =\frac{64}{2} =32$

The average of 45 and 19 is 32.

7 0

3 years ago