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3 years ago

Help please! Picture included about functions. Explain if you can.

Mathematics

1 answer:

slega [8]3 years ago

3 0

The definition of a function is a relation where every input (x value) is paired with exactly one output (y-value).

A. Not a function, because you have (300, 9) and (300,7). The x-value 300 is paired with two different y-values, 9 and 7.

B. Not a function. (260, 4) and (260, 2)

C. Is a function

D. Not a function. (225, 4) and (225, 2)

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Which ordered pair (c, d) is the solution to the given system of linear equations?

sasho [114]

Answer:

(-1,6)

Step-by-step explanation:

The missing part of this question is the system given as;

$-c+2d=13$

$-9c-4d=-15$

We solve for c in the top equation to get:

$c=2d-13$

Substitute $c=2d-13$ into the bottom equation to get:

$-9(2d-13)-4d=-15$

Expand to get:

$-18d+117-4d=-15$

Group similar terms to get:

$-18d-4d=-15-117$

$-22d=-132$

$d=6$

Put $d=6$ into $c=2d-13$ to get:

$c=2*6-13$

$c=12-13=-1$

The solution is (-1,6)

3 0

3 years ago

Read 2 more answers

the total weight of 6 pieces of butter and a bag of sugar is 3.8 Ib. if the weight of the bag of sugar is 1.4 Ib, what is the we

baherus [9]

0.4 lbs each.

<h3>Further explanation</h3>

<u>Given: </u>

The total weight of 6 pieces of butter and a bag of sugar is 3.8 Ib.
The weight of the bag of sugar is 1.4 Ib

<u>Question: </u>

What is the weight of each piece of butter?

<u>The Process: </u>

The two steps for obtaining the weight of each piece of butter are as follows:

<u>Step-1:</u> the total amount of butter is the total bag of butter and sugar subtracted by the weight of the bag of sugar.

$\boxed{ \ 3.8 \ lbs - 1.4 \ lbs = 2.4 \ lbs \ }$

<u>Step-2:</u> the total amount of butter divided by the number of pieces of butter is the the weight of each piece of butter.

$\boxed{ \ 2.4 \ lbs \div 6 \ pieces = \boxed{ \ 0.4 \ lbs/piece \ } \ }$

Let's also consider the following quick steps.

<u>Quick steps: </u>

$\boxed{ \ \frac{(3.8 - 1.4) \ lbs}{6 \ pieces} = \boxed{ \ 0.4 \ lbs/piece \ } \ }$

Therefore, the weight of each piece of butter is 0.4 lbs.

<h3>Learn more </h3>

What is the cost of the toy car? brainly.com/question/5282516
How much netting did Mrs.Nguyen use per goal? brainly.com/question/13174287
How much punch is in each bowl? brainly.com/question/1878521

Keyword: the total weight, 6 pieces of butter, a bag of sugar is 3.8 Ib, if the weight of the bag of sugar is 1.4 Ib, each piece, subtracted, divide

5 0

3 years ago

Read 2 more answers

D = {x:x is a factor of 12<br>

lys-0071 [83]

Answer:

7 0

3 years ago

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Factor the trinomial x^2 - 2x - 8

ValentinkaMS [17]

Well what two numbers multiply to get -8 and add to get -2?
Well, to get -8, we either have (-1,8),(-2,4),(-4,2),(-8,1)
8-1=7
-2+4=2
2-4=-2
1-8=-7
Thus it should be (-4,2),
This means we should get (X-4)(X+2)

7 0

3 years ago

Let $z$ be a complex number such that $z^5 = 1$ and $z \neq 1.$ Compute

snow_lady [41]

Answer:

The answer is 4

Step-by-step explanation: i did it

5 0

2 years ago