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Lady_Fox [76]
3 years ago
9

NEED HELP NOW!! FOR MATH 10PTS

Mathematics
1 answer:
meriva3 years ago
4 0

Answer:

a)

Step-by-step explanation:

Cost function = revenue function - profit function

   = -0.3x² + 150x - [-0.5x² + 250x - 300]

   = -0.3x² + 150x + 0.5x² - 250x +300

  = -0.3x² + 0.5x² + 150x - 250x + 300   {Combine like terms}

  = 0.2x² - 100x + 300

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schepotkina [342]
The answer to this question is 1,062
4 0
3 years ago
Express the set of numbers shown on the number line
laiz [17]

Given:

The graph of a number line.

To find:

The set of values for the given number line.

Solution:

As we move from right to left on a number line the values decreased however as we move from left to right on a number line the values increased.

From the given number line it is clear that there is an open circle at 7  and a close circle at 10. It means 7 is not included in the solution set but 10 is included in the solution set.

From the point 7, the arrow approaching to the left it means all the values less than 7 are included in the solution set, i.e., x < 7.

From the point 10, the arrow approaching to the right it means all the values greater than 10 or equal to 10 are included in the solution set, i.e., x ≥ 10.

Solution set : x < 7 or  x ≥ 10.

Therefore, the correct option is A.

3 0
3 years ago
Help please and explain why
andrew-mc [135]

Answer:

9 cm tall

Step-by-step explanation:

The formula to find the volume of a cylinder is

V = pi r^2 (h)

pi r^2 is the base

Plug in the volume and the base

198 = 22 (h)

divide by 22

9 = h

7 0
3 years ago
The U.S. Weather Bureau has a station on Mauna Loa in Hawaii that has measured carbon dioxide levels since 1959. At that time, t
elixir [45]
Hmmm the increase, wel is just the difference 367 - 312, which is 55.

now, if we take 312 to be the 100%, what is 55 off of it in percentage?

\bf \begin{array}{ccll}&#10;amount&\%\\&#10;\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\&#10;312&100\\&#10;55&p&#10;\end{array}\implies \cfrac{312}{55}=\cfrac{100}{p}\implies p=\cfrac{55\cdot 100}{312}
8 0
3 years ago
What equation is represented by this graph?
Mademuasel [1]

Answer:

y= 1.2x+1

Step-by-step explanation:

(0,1) and (-5,-5) are coordinates that you already know and are fs about. So you just see rise over run. 6/5 = 1.2 which is your slope. the y-int is 1 bc thats where it intersects. so your equation is y=1.2x+1

double check:

y = 1.2(-5) + 1

y = -6 + 1

y = -5

coordinates : (-5,-5)

5 0
3 years ago
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