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Luden [163]
3 years ago
9

Write a real-world situation that can be modeled by the inequality 20x > 30 + 15x.

Mathematics
1 answer:
tia_tia [17]3 years ago
5 0

Answer:

20x > 30 + 15x.

John and Jack were making steel bars. John started earlier, and had already completed 30 steel bars by the time Jack clocked in for work. To make up the time, Jack created 5 more bars per hour then usual (usual being 15 bars an hour). How much hours are needed before Jack could surpass John?

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The circle above represents the amount of fruits produced by a farmer . if 0 is the centre of the circle and the three angles at
slavikrds [6]

Answer:

(b) 1/3

Step-by-step explanation:

because it has 3 equal parts

3 0
3 years ago
Read 2 more answers
How exactly do you do this I understand this a little more but need a little push :(<br>​
Hitman42 [59]

Answer:

(2, 12)

Step-by-step explanation:

You do it by adding

2 and 0.

4 and 8.

3 0
3 years ago
(7y - 2n) - (5y + 3a) =<br><br> Pls help
Sati [7]

Answer:

2y-2n-3a

Step-by-step explanation:

(7y-2n) - (5y+3a)

7y-2n-5y-3a

2y-2n-3a

4 0
3 years ago
Read 2 more answers
Function : y=4 sin(3x)-2
STatiana [176]
So the 4 represents the amplitude of the function. We can also see that because it is a positive number, the graph is even. ⁽⁽The number before the graph type (Sin or Cos) always represents the amplitude. The amplitude is how many units the graph travels up and down from the midline. 
The -2 is the midline. This means that the midline is at -2 on the Y-axis. To find the max and min, you then add the amplitude to find the maximum, and subtract to find the minimum. [-6. 2]
To find the period, you divide 2π by the term in front of x. In this case, it's 3, so we do 2π/3. This cannot be simplified further, but in degrees this equals 120°. This means that, with the question asking for 2 full cycles, that the graph will go through 2 full cycles in 240°

Hope this helps, sorry i couldn't sketch the graph for you
4 0
4 years ago
Find the indefinite integral. (Use C for the constant of integration.) <br> e2x 25 e4x dx.
Sladkaya [172]

Answer:

The solution is  \frac{1}{10} * tan^{-1}[\frac{e^{2x}}{5} ] +  C

Step-by-step explanation:

From the question

    The function given is  f(x) =  \frac{e^{2x}}{ 25 + e^{4x}} dx

The  indefinite integral is  mathematically represented as

          \int\limits  {\frac{e^{2x}}{ 25 + e^{4x}}} \, dx

Now  let  e^{2x} =  u

=>   \frac{du}{dx} 2e^{2x}

=>   2 e^{2x}dx =  du

So

\int\limits  {\frac{e^{2x}}{ 25 + e^{4x}}} \, dx =  \int\limits  {\frac{1}{ 2(25 + u^2)} } \, du

= \frac{1}{2} \int\limits  {\frac{1}{ 25 + u^2)} } \, du

=  \frac{1}{2} \int\limits  {\frac{1}{ 5^2 + u^2)} } \, du

= \frac{1}{2} \frac{tan^{-1} [\frac{u}{5} ]}{5}  +  C

Now substituting for  u

\frac{1}{10} * tan^{-1}[\frac{e^{2x}}{5} ] +  C

3 0
3 years ago
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