Answer:
Step-by-step explanation:
Relative to the water, the boat is moving
10sin30 = 5 mph N
10cos30 = 8.66 mph E
As the water is flowing 4 mph south, the net boat north velocity is 5 - 4 = 1 mph relative to shore
So relative to shore, the boat appears to be moving
v = √(1² + 8.66²) = √76 = 8.71779... 8.7 mph
θ = arctan(1/8.66) = 6.58677... 6.6° N of E
For this case we have the following expression:
8 + 0 = 8
The sum has several properties.
One of them is the following one:
Neutral element: the sum has a neutral element that is 0. If you add 0 to any number the result is the same number.
Answer:
The property shown in the given expression is:
Neutral element.
Answer: -3x/8 - 1/4
Hope this helps, good luck!
Answer:
C
Step-by-step explanation:
C. Both a function and a relation
Answer:
The score of the dropped grade is 6
Step-by-step explanation:
To find the average of a set of numbers you need to add all the numbers and divide by how many numbers there are. The problem wants you to solve it in reverse. Let put this into an algebraic equation with a, b, c, d, and e being the variables of the test scores
(a+b+c+d+e)/5=10
Then we can multiply both sides by 5 and get
a+b+c+d+e=50
Lets assume that c is the lowest test score. To calculate the average of that we get
a+b+d+e/4=11
Doing the same thing, we know that a+b+d+e=44
Now compare the two:
a+b+c+d+e=50
a+b+d+e=44
We can now know that c=50-44=6
So, 6 is the score of the dropped quiz. Hope that helped!