Answer:
40
Step-by-step explanation:
the tens value is the 2 value from the left of a decimal point.
Examples: 32 67.4 2345 904
In your case, the tens value is 4
We need to look at the ones value to see if we need to round up or down
Because the ones value, 2, is less than 5, we keep the tens value, so it's 40
Answer:
We conclude that the daily average revenue was actually $675.
Step-by-step explanation:
We are given that the current owner claims that over the past 5 years, the average daily revenue was $675 with a standard deviation of $75.
A sample of 30 days reveals a daily average revenue of $625.
<u><em>Let </em></u>
<u><em> = daily average revenue.</em></u>
So, Null Hypothesis, 
: = $675 {means that the daily average revenue was $675}
Alternate Hypothesis, 
: 
$675 {means that the daily average revenue was different from $675}
The test statistics that would be used here <u>One-sample z test statistics</u> as we know about the population standard deviation;
T.S. = 
~ N(0,1)
where, 
= sample daily average revenue = $625
= population standard deviation = $75
n = sample of days = 30
Since, we are given that we have decided not to reject the null hypothesis which leads us to the conclusion that the daily average revenue was actually $675.
1080 dollars. The first interest is 2700 and the second is 1620.
Step-by-step explanation:
the vertex is the point, where the parabola turns around. it is (depending on its orientation, if it is opening upwards or downwards) the maximum or the minimum of the curve.
so, as we can see on the grid, that point is x = -3, y = +1 = (-3, 1).
so, B is correct
A, 2.
Step-by-step explanation:
The formula is (y2-y1)/(x2-x1) so just follow that.
