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harina [27]
3 years ago
10

A science experiment requires a 10% hydrogen peroxide solution. How much hydrogen peroxide must be added to 16 ounces of water t

o yield a 10% solution?
Mathematics
1 answer:
Schach [20]3 years ago
5 0

Answer:

  1 7/9 ounces

Step-by-step explanation:

The final solution will be 9 parts water and 1 part hydrogen peroxide (so that hydrogen peroxide makes up 1 of 10 parts of the solution).

Then each "part" is (16 ounces)/9 = 1 7/9 ounces.

1 7/9 ounces of hydrogen peroxide must be added to 16 ounces of water to make a 10% solution.

_____

<em>Check</em>

The total amount of solution is 16 +1 7/9 = 17 7/9 ounces = 160/9 ounces. The amount that is hydrogen peroxide is 16/9 ounces, so the fraction that is hydrogen peroxide is ...

  (16/9) / (160/9) = 16/160 = 1/10 = 10%

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1) find the corresponding y values for when x = 0 and when x = 4,
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2) to calculate the average rate of change, find the slope of the two points:

(0,4) (4,4)

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3 years ago
What is the first step when rewriting y=6x^2+18x+14 in the form y=a(x-h)^2+k?
Grace [21]
<h3>Answer:</h3>

Factor 6 from the first two terms.

<h3>Step-by-step explanation:</h3>

By factoring out "a", you can better see what "h" needs to be.

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  2. add the square of half the x-coefficient inside parentheses; add the opposite outside: y = 6(x^2 +3x +2.25) +14 -6(2.25)
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2 years ago
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3. Since that is the absolute highest point, it is also the point where is goes from increasing to decreasing. As a result, we know the increasing interval is x<120 and the decreasing interval is x > 120.


4. Finally, the average rate of change between 3 and 5 is -30. You can find this by determining the amount of change in f(x) and dividing it by the amount of change in x. The basic formula is below.


\frac{new f(x) - old f(x)}{new x - old x}

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\frac{-60}{2}

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3 years ago
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Answer:

0.8973

Step-by-step explanation:

Relevant data provided in the question as per the question below:

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Based on the above information, the probability is

Let us assume the X signifies the number of free throws

So,  Then X ≈ Bin (n = 6, p = 0.906)

P = (X = x) =  $\sum\limits_{x}^6 (0.906)^x (1 - 0.906)^{6-x}, x = 0,1,2,3,.., 6

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