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professor190 [17]
4 years ago
9

What is 12.08 written as a mixed number

Mathematics
2 answers:
Nataliya [291]4 years ago
7 0
12 2/25 is the answer

Alika [10]4 years ago
5 0
128 over 10 because this as a fraction is 12 and 8/10 so then times 12 by 10 and you get 120 then add 8 and then you get 128 and put it over 10
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To prepare 450 ml of a 30% (w/v) solution of potassium chloride (kcl), how many grams of solute are needed?
tiny-mole [99]
The important clue from the problem, would be (w/v). This would indicate that the percent has units of weight per volume. We calculate as follows:

Grams solute = .30 g solute / mL solution (450 mL) = 135 g of solute. 

Hope this answers the question. Have a nice day.
4 0
4 years ago
Will is throwing a ball across a 42 yard field. He threw it 3/7 of the way across the field. How far did Will throw the ball?
prisoha [69]
42/7 =6
6*3=18
Answer
18 yards
8 0
3 years ago
A news station would like to conduct an exit poll to determine the likelihood that a highly debated amendment will receive enoug
vladimir1956 [14]

Answer:

The expression is n = (\frac{1.645*0.5}{0.03})^2

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the z-score that has a p-value of 1 - \frac{\alpha}{2}.

The margin of error is of:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

90% confidence level

So \alpha = 0.1, z is the value of Z that has a p-value of 1 - \frac{0.1}{2} = 0.95, so Z = 1.645.

What expression would give the smallest sample size that will result in a margin of error of no more than 3 percentage points?

We have to find n for which M = 0.03.

We have no prior estimate for the proportion, so we use \pi = 0.5. So

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.03 = 1.645\sqrt{\frac{0.5*0.5}{n}}

0.03\sqrt{n} = 1.645*0.5

\sqrt{n} = \frac{1.645*0.5}{0.03}

(\sqrt{n})^2 = (\frac{1.645*0.5}{0.03})^2

n = (\frac{1.645*0.5}{0.03})^2

The expression is n = (\frac{1.645*0.5}{0.03})^2

3 0
3 years ago
Whats is the zero of function ?<br>A -3<br>B-3/2<br>C-2/3<br>D-2​
Brrunno [24]

Answer:

D. -2

Step-by-step explanation:

The zero of a function is always along the x-axis and in this case that's -2.

Hope this helps :)

4 0
3 years ago
Please hurry I'm due tmr hurry and thanksss ​
Nutka1998 [239]

Answer:

2) -2/3

4) 17/5

Step-by-step explanation:

2)-4/3= 2g

-4=6g

g=-2/3

4) 9=5r - 8

-5r=-17

r=17/5

8 0
3 years ago
Read 2 more answers
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