Answer:
18
Step-by-step explanation:
plug 4 for z
3(4)+6=18
The slope of the line is (4-2) / (3-1) = 2/2 = 1
y - y1 = x - x1
here x1 = 1 and y1 = 2 :-
y - 2 = x - 1
y = x + 1 <---- Answer
Answer:
2 hours 30 minutes
Step-by-step explanation:
Given data
speed= 110mph
distance travelled= 275miles
Required
the time of travel
We know that
Speed= distance/time
time= distance/speed
time= 275/110
time=2.5 hours
Hence the time is 2 hours 30 minutes
Answer:
Formula for the SA (Surface Area) is 2πrh+2πr^2.
Replace the values and you get answer of 251.999570694 = 252pi
Answer:
no enough evidence to draw up a conclusion
Step-by-step explanation:
Data:
let:
= decay after 2 weeks
= decay after 16 weeks
Making the hypotheses:
Null hypothesis; 
the deviation = 0.05
the standard difference = 4
Conditions:
The normal distribution curve can be plotted on a graph and the plot shows that the distribution is a skewed distribution.
Then,

Therefore, it can be concluded that 0.1983 > 0.05. This presents our failure to reject the null hypothesis.
Thus, there is not enough evidence to conclude that polyester decays more in less than 2 weeks.