Answer:
Step-by-step explanation:
If y= -5 when x= -20 that means x is 4 times y
y= 8.75 when x= 35
Answer:
18 minutes
Step-by-step explanation:
A = A₀ (½)^(t / T)
where A is the final amount,
A₀ is the initial amount,
t is the time,
and T is the half life.
A = 140 when t = 10. Solve for the half life:
140 = 700 (½)^(10 / T)
0.2 = ½^(10 / T)
log 0.2 = (10 / T) log 0.5
10 / T = 2.32
T = 4.31
When A = 40, t is:
40 = 700 (½)^(t / 4.31)
0.057 = ½^(t / 4.31)
log 0.057 = (t / 4.31) log 0.5
t / 4.31 = 4.13
t = 17.8
Rounded to the nearest whole number, it takes 18 minutes.
Some of the rates that can be formed are; Speed = 8.333 mph
Number of miles covered per gallon of gasoline used = 14.706 mpg
The number of gallons used per hour = 0.567 gallons per hour
<h3>How to use units conversion?</h3>
We are told that the Northwest Football team drove 25 miles.
Now, the time that this team took was 3 hours.
Thus, one rate that can be formed is the speed in mi/hr. Thus;
Speed = 25/3 = 8.333 mph
Another rate that can be found is the number of miles covered per gallon of gasoline used. This gives us;
25/1.7 = 14.706 mpg
Another rate that can be gotten is the number of gallons used per hour;
= 1.7/3 = 0.567 gallons per hour
Read more about Units Conversion at; brainly.com/question/141163
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Answer:
39 degrees
Step-by-step explanation:
Add: 39+54+48=141
180 (degrees of a straight angle) minus 141=39
39 degrees
Hope I helped!! :)
Brainliest?!?!
Stay safe and have a good day/night/afternoon!!!
Answer:
standard deviation
Step-by-step explanation:
The standard deviation is defined as the measure of how spread out the numbers are in a given population. In other words, statistics refers to the amount of the dispersion or variation of a set of given values.
It is denoted by the Greek letter sigma, σ.
Thus the standard deviation is the measure of how dispersed the data are in the population which can be used to provide context to a larger data sets.
