d = r · t ⇒ t = d/r
going
t = 54/(r + 4)
coming
t = 30/(r - 4)
54/(r + 4) = 30/(r - 4) times are equal
54(r - 4) = 30(r + 4) product means/extremes
54r - 216 = 30r + 120 distribute
24r - 216 = 120 subtract 30r from both sides
24r = 336 add 216 to both sides
r = 14 divide both sides by 24
Alfonso bikes at 24 mph.
Formula for circl area
pi times radius^2
pi=aprox 3.14 in this problem
area=3.14 times radius^2
radius=9
area=3.14 times 9^2
area=3.14 times 81
area=254.34 square feet or
254.34 ft^2
Answer:
Missing information.
Step-by-step explanation:
However, the domain is all the x- values. The range is all the y-values (that do not repeat).
So when you look at your graph, find your x values and y-values and write them as set. That is your answer.
Answer:
B. the lower the father's blood sugar level the lower the son's blood sugar level
Step-by-step explanation:
Correlation coefficient is the measure of relationship or association between two variables. It ranges between -1.0 and 1.0, negative correlation coefficient(-1.0 to 0) means there is negative relationship between the two variables, an increase in one variable leads to a decrease in the other. Positive correlation coefficient (0 to 1.0) means that there is a positive relationship between the two variables, an increase in one variable leads to an increase in the other variable. And correlation coefficient of 0.0 shows that there is no relationship between the two variables. For the case above, the correlation coefficient of 0.84 shows that there is a strong positive correlation coefficient between father's blood sugar levels and son's blood sugar levels, so the lower the father's blood sugar level the lower the son's blood sugar level
Answer:
3,600
Step-by-step explanation:
1 minute=80 words
2 minutes=160 words
----------> I divided 44 by 2=22x 160 =44 minutes=3,520
add 1 more minute(1 minute=80 words)
so 3,600
