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3 years ago

In this combined function, the domain is all real numbers for x except? (x+6) / (x-9)

Mathematics

1 answer:

astra-53 [7]3 years ago

4 0

To find the excluded values, equal the denominators and the divisor to.

The answer is 9

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Perform the operation below using a number line. -7-(-8). ASAP. pleeease help.

Aliun [14]

Answer:

Step-by-step explanation:

Calculation steps:

-7-(-8) = ⇒ two negatives cancel and change to positive

- 7 + 8 = ⇒ 8-7 = 1

1 ⇒ answer

4 0

4 years ago

What is the correct answer? 35?

earnstyle [38]

It’s 29
The chicken is 20
The eggs are 3
And the bananas are 6

3 0

4 years ago

Read 2 more answers

An animal feed to be mixed from soybean meal and oats must contain at least 168 lb of protein, 27 lb of fat, and 14 lb of minera

atroni [7]

Answer:

The animal farm should buy 1.775 bags of soybeans and 1.575 bags of oats

$Cost = 51.275$

Step-by-step explanation:

The given parameters can be summarized as:

$\begin{array}{cccc}{} & {x} & {y} & {Total} & {Protein} & {70} & {21} & {168} &{Fats}& {9} & {7} & {27} & {Minerals} & {7} & {1} & {14}& {Cost} & {21} & {7} & {} \ \end{array}$

Where: x = Soybeans and y = Oats.

So, the system of equations are:

$70x + 21y = 168$

$9x +7y = 27$

$7x + y = 14$

$Cost = 21x + 7y$

The best way to solve this, is using graph

Plot the following equations on a graph, and get the points of intersection:

$70x + 21y = 168$

$9x +7y = 27$

$7x + y = 14$

From the attached graph, we have:

$(x_1,y_1) = (1.636,2.545)$

$(x_2,y_2) = (1.775,1.575)$

$(x_3,y_3) = (2.023,1.256)$

Substitute each of the values of x's and y's in the cost function to get the minimum cost:

$Cost = 21x + 7y$

$(x_1,y_1) = (1.636,2.545)$

$Cost = 21 * 1.636 + 7 * 2.545$

$Cost = 52.171$

$(x_2,y_2) = (1.775,1.575)$

$Cost = 21 * 1.775 + 7 * 1.575$

$Cost = 48.3$

$(x_3,y_3) = (2.023,1.256)$

$Cost = 21 * 2.023 + 7 * 1.256$

$Cost = 51.275$

The values of x and y that gives the minimum cost is:

$(x_2,y_2) = (1.775,1.575)$

and the minimum cost is:

$Cost = 48.3$

Hence, the animal farm should buy 1.775 bags of soybeans and 1.575 bags of oats

5 0

3 years ago

What is the square root of 169

lorasvet [3.4K]

Answer:13

Step-by-step explanation:

13^2

6 0

3 years ago

Maya earns 43 dollars per week working part-time at a book store. She makes one dollar more for each book that she sells. The am

natima [27]

Answer:

Step-by-step explanation:

It says that Maya makes one dollar more for each book that she sells so if she sells 13 books, she will make 13 dollars more than her weekly earning which is 43 dollars. So to find the answer, you would need to add 13 + 43 which would equal 56 dollars.

3 0

3 years ago