Answer: 139
Step-by-step explanation:
As per given , we have
The amount of caffeine per cup is ranging from 60-180 mg.
Range = Maximum - Minimum = 180 -60 =12
According to Range -rule ,
Standard deviation =
Formula for sample size : , where z* is critical z value and E is margin of error.
By z-table , the critical z-value for 95% confidence interval = 1.96
E= 5
Put all values in formula , we get
Hence, 139 cups of coffee would have be included in the sample.
So my opinion that choice D is right because given that figure x is inscribed in figure y so what mean that figure y is circumscribed about figure x
hope this will help you
Answer:
Absolute value;
The non-negative value of x(in your case -19) without regard to its sign.
Basically how far in distance x(in your case -19) is away from 0.
|–19| = <u>19</u>
Answer:
(-6, 0)
Step-by-step explanation:
Check out A): (-6,0). This satisfies 2y-2x=12: 2(0) - 2(-6) = 12, and also satisfies x^2+y^2=36: (-6)^2 + 0^2 = 36. (-6, 0) is therefore a solution of the given system.
Answer:
28 blue marbles
Step-by-step explanation:
since the ratio s 7/4, we have to make 49/x=7/4. 7 times 7 is 49, so 4 times 7 must be x. 4 times 7 is 28, so there are 28.