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Masteriza [31]
3 years ago
9

What was developed as a tool used to investigate a change in natural sciences?

Mathematics
2 answers:
dolphi86 [110]3 years ago
4 0

The Scientific Method.

Hope this helps ^^

andrezito [222]3 years ago
4 0

Answer:

The Scientific Method

Step-by-step explanation:

The Scientific method has many steps to help you evaluate a change

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a manufacturer has determined that if his company sells x items per day then their profit is given by P=-x^2+ 700 x-10000 euros.
Radda [10]

Answer:

15

Step-by-step explanation:

To find the minimum amount of items, x, that need to be sold for the manufacturer to make a profit, we can use the quadratic formula

x = \frac{-b+\sqrt{b^{2}-4ac } }{2a}; x=  \frac{-b-\sqrt{b^{2}-4ac } }{2a}

x= \frac{-700+\sqrt{700^{2}-4(a)(-10000) } }{2(1)}; x= \frac{-700-\sqrt{700^{2}-4(a)(-10000) } }{2(1)}

x= \frac{-700+\sqrt{530000} }{2}; x= \frac{-700-\sqrt{530000} }{2}

x=\frac{-700+100\sqrt{53} }{2}; x=\frac{-700-100\sqrt{53} }{2};

x=-350 + 50\sqrt53 = 14.005; x = -350 - 50\sqrt53 = -714.005

In context of the problem, we can only rely on the positive value, as the negative value would lead to a loss of profit.

(-714.005)^2+700(-714.005)-10000=-0.360

Furthermore, we must round to the nearest whole number, as you cannot make part of an item.

Lastly, if you were to plug in 14 into the equation for Profit, you would still have a negative number (i.e. a negative profit), thus requiring the manufacturer to make no less than 15 items to make a profit:

(14)^2+700(14)-10000=-4\\\\(15)^2+700(15)-10000=725

3 0
1 year ago
Freddy is helping buy ingredients for salads for the school spaghetti dinner. He bought 10 pounds of onions at $0.69 per pound,
dezoksy [38]
Hey there,

Answer: Tomatoes 

If you multiply 10 x 0.69 (for onions) it would be 6.9
If you multiply 100 x 0.99 (for tomatoes) it would be 99
Lastly, if you multiply 100 x 0.69 (for lettuce) if would be 69


Which are the most? Tomatoes.

~ Hope this helps, and if you have any questions or concerns, feel free to pm me or comment down below :)
3 0
3 years ago
If f(x)=x/2-3and g(x)=4x^2+x-4, find (f+g)(x)
Sergeeva-Olga [200]

Step-by-step explanation:

(f+g)(x) = f(x) + g(x)

= x/2-3 + 4x²+x+4

= ..........

4 0
3 years ago
5 in<br> 9 in<br> 10 in<br> Surface Area =
yKpoI14uk [10]

5*9*10= Surface Area

5 0
3 years ago
Express 0.00078456 in scientific notation
Annette [7]
7.8456 x 10^(-4)

this means you move the decimal place to the left 4 places to get the actual value
5 0
3 years ago
Read 2 more answers
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