Answer:
B, 70pi ft2
Step-by-step explanation:
The equation to find surface area of a cylinder is 2(pi)(r)(h)+2(pi)(r)^2. So now plug the numbers in.. 2(pi)(5)(2)+2(pi)(5)^2 now, simplify. 20pi+50pi= 70pi ft2.
The answer is 2 more miles
Answer: The answer that is false is “Initially, Cassie has $20 dollars in her account.”
Step-by-step explanation: The reason why this is false is because the first statement that the slope of the line is -20 is true. The formula for slope-intercept form is y = mx + b where m is the slope and b is the y-intercept. Next the initial value is 275 because in these problems the y-intercept is technically the starting value in these problems. So since the initial value is 275 the last statement is false.
Have a nice day!
Answer:
There no sufficient evidence to support the manufactures claim at the 0.05 level
Step-by-step explanation:
From the question we are told that
The mean is
The sample mean is
The sample size is
The standard deviation is
The test statistics is
The level of significance is
The null hypothesis is
The alternative hypothesis is
Generally the p-value is mathematically represented as
From the z-table
So
=>
From he value given and obtained we see that
Hence we reject the null hypothesis
Hence there no sufficient evidence to support the manufactures claim
Answer:
0.02gallons per mile
Step-by-step explanation:
Lily's car used 5 gallons of gas to drive 230 miles.
The rate at which her care use gas in gallons per mile is 5 gallons of gas/230 miles= 0.02173913043≈0.02gallons per mile