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butalik [34]
3 years ago
6

From the list below, determine which properties are for compounds. I. It takes a large amount of energy to separates the element

s of a compound. II. The proportions of the elements in a compound are always fixed. III. It is easy to separate the elements of a compound. IV. The elements/components of a compound do not retain their individual properties. A) I & II B) II & III C) I, II & IV D) II, III, & IV
Mathematics
2 answers:
klasskru [66]3 years ago
3 0

 1 , 2 & 4 are all properties of compounds.

 The answer would be C

Bingel [31]3 years ago
3 0
The correct answer is C <span>a mixture that is uniform in composition, </span>components<span> are evenly distributed and </span>not easily<span> distinguished ... They </span>can<span> have some same extensive </span>properties<span> if </span>there<span> is the same </span>amount<span> of the samples but they are different </span>elements<span> so the intensive </span>properties<span> are ... What type of </span>properties can<span> be used to </span>separate <span>mixtures? That is the answer hope I helped God bless you and your family Have a Merry Christmas #Remember pray and tell God Happy birthday your in my prayers</span>
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How many cubic feet of water can the following in ground swimming pool hold
guapka [62]

Answer:

do length times width times height and see what you get if your answer is not on there split the figure into 2 shapes and do l*w*h to both and add you 2 figures together then see if you have your answer.

Step-by-step explanation:

do length times width times height and see what you get if your answer is not on there split the figure into 2 shapes and do l*w*h to both and add you 2 figures together then see if you have your answer. hope that helps!

3 0
2 years ago
20 is 25% of what number
borishaifa [10]
Hey there! :D

If 20 is 25% of a number, 

we know that it is a quarter of a number. 

20*4= 80

20 is 25% of 80.

I hope this helps!
~kaikers
5 0
3 years ago
Read 2 more answers
A school club is raising money for a trip, and needs to reach $10,000. Their fundraising progress is modeled by the function
Sloan [31]
D I'M POSITIVE ITS D


3 0
3 years ago
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Put each equation in standard form and state the values of a, b and c.
hichkok12 [17]

1) a = 2, b= 3, c=2,

2) x^2 -2x-4 (a = 1, b=-2, c =-4)

3) x^2+x+3 (a,b = 1, c = 3)

4) 7x^2+8x-4 (a=7, b=8, c=-4)

6 0
3 years ago
A quality-conscious disk manufacturer wishes to know the fraction of disks his company makes which are defective. Step 2 of 2 :
const2013 [10]

Answer:

The 80% confidence interval for the population proportion of disks which are defective is (0.059, 0.079).

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 zscore that has a pvalue of 1 - \frac{\alpha}{2}.

Suppose a sample of 1067 floppy disks is drawn. Of these disks, 74 were defective.

This means that n = 1067, \pi = \frac{74}{1067} = 0.069

80% confidence level

So \alpha = 0.2, z is the value of Z that has a pvalue of 1 - \frac{0.2}{2} = 0.9, so Z = 1.28.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.069 - 1.28\sqrt{\frac{0.069*0.931}{1067}} = 0.059

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.069 + 1.28\sqrt{\frac{0.069*0.931}{1067}} = 0.079

The 80% confidence interval for the population proportion of disks which are defective is (0.059, 0.079).

7 0
2 years ago
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