Given the function:
f(x) = x³ + 3x² - 4x + 5
The graph of the function is (taken f:
According to the graph above, the maximum and minimum are 18.13 and 3.87, respectively
92/152 = 0.605 (now that rounded)...u do know that the " / " sign is not only a fraction bar, it is a division sign. So simply type in ur calculator 92 divided by 152 and then u will get ur decimal.
Answer:
We need a sample size of at least 1161.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of 
, and a confidence level of 
, we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of 
.
The margin of error for the interval is:
For this problem, we have that:
90% confidence level
So 
, z is the value of Z that has a pvalue of 
, so 
.
How large a sample should she take?
We need a sample size of at least n.
n is found when 
So
Rounding up
We need a sample size of at least 1161.
Answer:
The car travels 83 1/3 meters in 3 seconds.
Step-by-step explanation:
Speed of car = 100 KM/ hour
1 km= 1000m
1 hour = 3600 seconds
Lets find speed of car in Meters/second
speed of car in m/sec = 100*1000 m/3600 second
here we have taken 1000 for km and 3600 for hour
speed of car in m/sec = 100*1000 m/3600 second = 500/18 m/second
speed of car in m/sec = 250/9 m per sec
We know that
distance = speed*time
speed = 250/9 m per sec
time =3 second
distance = 250/9 * 3 meters = 250/3 meters = 83 1/3 meters.
Thus, car travels 83 1/3 meters in 3 seconds.
Combined area is 5.454 × 10^7 km²
Step-by-step explanation:
- Step 1: Find the combined area of Asia and Europe.
Area of Asia = 44,600,000 km²
Area of Europe = 9,943,106 km²
⇒ Combined Area = 44,600,000 + 9,943,106
= 54,543,106 km²
- Step 2: Convert to one significant figure.
54,543,106 = 5.454 × 10^7 km² (Dividing and multiplying by 10^7)
