Answer:
-9
Step-by-step explanation:
Just subtract -4 degrees to 5 and you'll get -9 degrees. The answer is negative since the starting temprature is negative and the tempature is going down and not up.
No, the two sets are not disjoint.
Set of triangular numbers to 50: 1, 3, 6, 10, 15, 21, 28, 36, 45
Set of square numbers to 50: 1, 4, 9, 16, 25, 36, 49
They have 1 and 36 in common, so they are not disjoint, or in other words, they have some of the same numbers.
Answer: b. $3,374.65
The exponential equation of growth (continuously) is given by :-
, where A is the initial amount, r is the rate of growth ( in decimal) and x is the time period.
Given : You invest $2,500 in an account that grows 5% each year.
i.e. A= $2,500 and r= 5%=0.05
Then, the equation model this situation will be :-
Now, At x= 6
Hence, the investment amount after 6 years will be $3,374.65.
114.4
421.2
-305.2
-90= 5y-20
-90+20= 5y-20+20
-70=-5y
-70/-5= -5y/-5
y= 14