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Nikolay [14]
4 years ago
5

Answer the question and I will mark brain also explains why you chose your answer :)

Mathematics
1 answer:
snow_tiger [21]4 years ago
5 0

Answer:

1. 700

2.1050

Step-by-step explanation:

you add 310 and 390 and get 700

350 plus 700 is 1050

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The total profit P of manufacturing x hundred DVD's is given by the equation below.
hichkok12 [17]

Answer:

x = -7.5

Step-by-step explanation:

P = 600 + 1,500x − 100x^2

P = − 100x^2 + 1,500x + 600

x = -b/2a

1500/ (2 x -100)

x = -7.5

7 0
3 years ago
Liam has to fill a hole in the ground that is 24 inches deep. He fills the hole at a rate of 6 inches in 30 minutes. Write a fun
kupik [55]

Answer:

The function that models the depth of the hole in feet over time in hours is h(t) = 24 - 12\cdot t.

Step-by-step explanation:

According to the statement, the variable to be modelled is the depth of the hole, which decreases whereas is filled. Under the assumption that the hole is filled at constant rate, we obtain the following expression:

h(t) = h_{o}-\frac{\Delta h}{\Delta t}\cdot t (1)

Where:

h(t) - Current depth of the hole, measured in inches.

h_{o} - Initial depth of the hole, measured in inches.

\Delta h - Filled level, measured in inches.

\Delta t - Filling time, measured in hours.

t - Time, measured in hours.

If we know that h_{o} = 24\,in, \Delta h = 6\,in and \Delta t = 0.5\,h, then the function that models the depth of the hole is:

h(t) = 24 - 12\cdot t

The function that models the depth of the hole in feet over time in hours is h(t) = 24 - 12\cdot t.

6 0
3 years ago
<img src="https://tex.z-dn.net/?f=y%20%7B%7D%5E%7B3%7D%20%20%3D%2081" id="TexFormula1" title="y {}^{3} = 81" alt="y {}^{3} = 8
zvonat [6]
Y = 3\sqrt[3]{3}

81 is the same as 3 x 3 x 3 x 3. Therefore we can take out three of the four 3s and leave one inside the cube root radical. 
3 0
3 years ago
How to divide 55.1 ÷ 19 and show work. ​
Licemer1 [7]

Answer:

55.1 ÷ 19 = 2.9

Hope this helps

-Amelia

P.S. I couldn't show my work bc i cant take a picture of it.

8 0
3 years ago
Jill earned 40$ from a carpool plus 9$ per hour (h) babysitting this week. turn into an Expression
nadya68 [22]

Answer:

9h + 40

Step-by-step explanation:

You use 9h, because you don't know how many hours Jill worked, she already had 40$ so 40 is the constant.

7 0
3 years ago
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