include the notation and just do the work on the page
Answer:
Step-by-step explanation:
I'm going to take a leap here and say that the -41^2 should be a -41t^2 and that the expression should look like this:
A term is a combination of variables and numbers separated by either a plus or a minus from another combination of variables and numbers. We have 3 terms: -41t^2 is one; -13t is another; 9 is the last. So this is a trinomial.
The degree of a polynomial is equal to the degree of the highest degree'd term. Since the leading term has a power of 2 and that's the highest degree of all the terms, this is a second degree polynomial, or a quadratic, to be more specific.
Answer:
Rate of the boat in still water 73 mi/hr
Rate of the current 18 mi/hr
Step-by-step explanation:
Calculation to determine the rate of the boat in still water and the rate of the current
Let B represent the speed of the boat in still water.
Let S represent the speed of the stream
Speed upstream = B-S.
Speed downstream = B+S.
Using the equation for distance
Distance=Rate * Time
Upstream
(B-S)7 = 385
(B+S)5= 455
Simplify first:
B-S=385/7
B-S = 55
B+S=455/5
B+S = 91
Solve by elimination. Add the two equations.
2B=55+91
2B = 146
B=146/2
B = 73 mi/hr
Substitute this into either equation and solve for S.
B+S = 91
73+S = 91
S=91-73
S = 18 mi/hr
Therefore the rate of the boat in still water is 73 mi/hr and the rate of the current is 18 mi/hr
First calculate the difference between the prices of the shoes
67-52= 15
Next, divide the difference by 52 (the original price)
15/52 = 0.28846
Multiply by 100 to get the percentage (rounded to nearest percent)
0.28846 = 28.8% = 29% rounded
The price of the pair of shoes increased by 29% (rounded).
Hope this helps! :)
Answer:
Kim rented the skates for 4 hours.
Step-by-step explanation:
8 divided by 2 is 4.
