Parallel lines
Lines that are always at a given distance from each other and never cross, is called the "parallel" line.
If a diagonal line (PS) interrupts two parallel lines and gives them equal angles, can say that these two lines are parallel. Because the angles are opposite to the vertex and has it opposite angles with other angle
Sorry i can not say this, Because the educational system is different
If the speed of the stream is x
Time is given by d/r , where r is the rate and d is the distance;
Rate for upstream = (15-x) mph and that of down stream is (15 +x) mph
The time taken will be the same;
Thus; 2/(15-x) = 4/(15+x)
cross multiplying;
30 +2x = 60 -4x
6x = 30
x =5
Therefore the rate of the river is 5 mph
Answer:
7066.66666667
Step-by-step explanation:
Sorry if i'm wrong
Answer:
SAS
Step-by-step explanation:
Looking for the third side given the other two sides and the angle between them
c² = a² + b² - 2abcosC
Okay first you should subtract 8.50 from 61.60 because the delivery charge doesn't count. 61.60-8.50=53.1. now divide 53.1 by 2.95. 53.1÷2.95=18. Romeo ordered 18 roses for his girlfriend.
