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Lerok [7]
3 years ago
10

The half life of radium is 1690 years. If 10 grams are present now, how much will be present in 50 years?

Mathematics
1 answer:
pantera1 [17]3 years ago
3 0
33.8 grams hope this helps
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A student organization wondered how many hours per week college students study during a term. Each of the 10 students in the org
Inga [223]

Answer:

No, a convenience sample was taken.Therefore, the sample may not be representative of all college students in terms of number of hours studied per week.

Step-by-step explanation:

One of the important conditions required in other to estimate the mean of the population from the confidence interval. Requires that the data must be a random Sample. This is to ensure that sample values are not biased and as such are representative of the larger group of data.

However, in the scenario described above, the sample chose. Are friend's of the student, this makes the data lack randomness as those who aren't friends to the student do not stand a chance of being selected. The sampling procedure employed is called convenience sampling.

4 0
3 years ago
Point W is on line segment VX. given VW=3 and VX=14, determine the length WX​
r-ruslan [8.4K]

Answer:11

Step-by-step explanation:14-3=11

4 0
3 years ago
0.403 divided by 100 what is the quotient
Alja [10]

Answer: 0.403 / 100 = 0.00403


Hope this helps ♥️

4 0
1 year ago
Find the x-intercept(s) of y = 2x2 - 3x - 5.<br> A) -5 <br> B) 2 1/2, -1<br> C) 3, -5 <br> D) 5, -1
Alexus [3.1K]

Answer:

\large\boxed{B)\ 2\frac{1}{2},\ -1}

Step-by-step explanation:

x-intercepts are for y = 0.

We have the equation:

y=2x^2-3x-5

Therefore

2x^2-3x-5=0\\\\2x^2+2x-5x-5=0\\\\2x(x+1)-5(x+1)=0\\\\(x+1)(2x-5)+0\iff x+1=0\ \vee\ 2x-5=0\\\\x+1=0\qquad\text{subtract 1 from both sides}\\\boxed{x=-1}\\\\2x-5=0\qquad\text{add 5 to both sides}\\2x=5\qquad\text{divide both sides by 2}\\\boxed{x=2\frac{1}{2}}

7 0
3 years ago
What is it p l z <br><br>zzzzzzzzzzzzzzzzz
Aleks04 [339]
Since a whole rotation is 360 degrees, you can take the whole rotation subtract it by the minor arc (92 degrees) which will equal the major arc (B=268 degrees)
5 0
1 year ago
Read 2 more answers
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