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egoroff_w [7]
3 years ago
10

Brainliest to best answer

Mathematics
1 answer:
Veronika [31]3 years ago
8 0

Answer:

  B.  3x -7y < -21

Step-by-step explanation:

For this problem, a quick way to the correct answer choice is to determine on which side of the y-intercept the equation tells you the solution lies. That is ...

  • set x=0
  • divide by the coefficient of y

Doing this transforms the answer choices to ...

  A: y < 3

  B: y > 3

  C: y > -3

  D: y < -3

The graph clearly shows the solution space on the y-axis is in the region y > 3, matching choice B.

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WORTH 19 POINTS!!
marta [7]
You have to make a cos graph that starts its minimum and of -2, has an amplitude of 10, a period of 10 and  a maximum of 18.
I decided to use a cos graph since cos graphs start at their minimum or maximum unlike a sine graph that starts halfway between the minimum and maximum.  You also know the amplitude has to be 10 since 18+2=20 and 20/2=10.  We were also told that the water wheel completels a rotation every 10 minutes which means the period is 10 minutes.

lets start of with a regular cos(x) graph.  This starts on its maximum instead of minimum so we have to multiply it by -1 to get -cos(x) which does start on its minimum.

-cos(x) has an amplitude of 1 instead of 10, to fix that we multiply it by 10 to get -10cos(x) which has an amplitude of 10.
 
-10cos(x) has a period of 2π instead of 10, to fix this we multiply the x by 2π/10 to get -10cos((π/5)x) which now has a period of 10.

-10cos((π/5)x) has a minimum of -10 and maximum of 10 instead of a minimum of -2 and maximum of 18, to fix this we add 8 to -10cos((π/5)x) to get -10cos((π/5)x)+8 which does have a minimum of -2 and maximum of 18.

Therefore the answer is y=-10cos((π/5)x)+8. x being time in minutes and and y being the height in feet.  

I hope this helps.  Let me know if anything is unclear.
8 0
3 years ago
You are considering applying for a job as sales representative for a company that makes tanker trucks. You see this graph displa
Strike441 [17]
Its a and b because it simply doesn't make any sense <span />
6 0
3 years ago
Games Made x
Fudgin [204]

The type of function that best models the data in the table is the quadratic function

<h3>How to determine the function type?</h3>

The table of values is represented as:

x: 4 6 8 10 12

y : 118 142 150 142 118

From the above table, we can see that:

  • The y values increase from 118 to 150
  • The y values then decrease to 118
  • The x values increase

This is only possible in a quadratic function

Hence, the type of function that best models the data in the table is the quadratic function

Read more about quadratic function at:

brainly.com/question/1214333

#SPJ1

5 0
2 years ago
WXYZ is a kite. If the measure of angle WXY is 120°, the measure of angle WZY is 4x° and the measure of angle ZWX is 10x°, find
kaheart [24]
360° = 120° + 10x + 4x + y
360° = 120°<span> + 14x + y
</span>240° = <span>14x + y
</span>240° - <span>14x = y
</span>
That's all I can do

3 0
3 years ago
Read 2 more answers
Q4 Q20.) Give the equation of the exponential function whose graph is shown.
Elodia [21]
Hi again!


I used an online calculator to help me graph each of the functions.

The correct answer is option D

Let me know if you have any questions about the answer!


3 0
3 years ago
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