Answer: x = -5
Step-by-step explanation:
55 = -10x + 5
- <em>Subtract 55 from both sides and add 10x to both sides.</em>
10x = 5 - 55
10x = -50
- <em>Divide 10 from both sides.</em>
x = -5
Answer:
B) - $377
Step-by-step explanation:
Loss for the first month = -$500
Profit for the second month = + $123
Total loss for two months = -$500 + $ 123
= - $377
Hint: if two numbers have different signs, then subtract and put the sign of bigger number.
Answer:
Step-by-step explanation:
Given the coordinates E(13,8) and K(7,2), to get the length of the segment EK, we will use the formula for calculating the distance between two points expressed as:
D = √(x2-x1)²+(y2-y1)²
Given
x1 = 13, y1 = 8, x2 = 7, y2 = 2
EK =√(7-13)²+(2-8)²
EK = √(-6)²+(-6)²
EK = √36+36
EK = √72
EK = √36×√2
EK = 6√2
EK = 8.485
EK ≈8.5 (to the nearest tenth)
Hence the length of segment EK is 8.5
For the midpoint, the expression will be used
M(X,Y) = {(x1+x2)/2, (y1+y2)/2}
M(X,Y) = (13+7/2, 8+2/2)
M(X,Y) = (20/2, 10/2)
M(X,Y) = (10,5)
Hence the coordinates of its midpoint is (10,5)
Answer:
A sample, or p hat, is representative when the sample closely remebles the population, which are the students in this case. The third and first answer choice would be correct.
Picking lunch period one is wrong because that would overrepresent the students in the first lunch period. Same applies to the first 30 students.
Pick
The answer is 726 ft Im pretty sure.