Answer:
x=1
Step-by-step explanation:
Answer:
The weight of the block of ice after 1 day is of 4.81 pounds.
Step-by-step explanation:
Equation for exponential decay:
The equation that models an amount after t hours, subject to exponential decay, is given by:

In which A(0) is the initial amount and r is the decay rate, as a decimal.
A 10-pound block of ice melts at a rate of 3% per hour.
This means that 
So



Find the weight of the block of ice after 1 day.
One day has 24 hours, so this is A(24).

The weight of the block of ice after 1 day is of 4.81 pounds.
Answer:
Let x = cost of your friend's lunch.
x + x + 3 = 19
x= 8
Answer: 3.40
Step-by-step explanation: You would use sin and solve. Lmk if you need an explanation.
Ok so assumin by 2x3 you mean 2x^3 or 2 times x cubed
PEMDAS
parenthasees
exponentes
multiply
divide
add
subtract
exponents
we have
2(3)^3+3(4)^2-17
exonents
3^3=27
4^2=16
now we have
2(27)+3(16)-17
distribute (multply)
2 tiems 27=54
3 times 16=48
now we have
54+48-17
add/subtract
85
answer is 85