Answer:
a) s1 is 4 km/h because it is given. t1 is 30 min. s2 is 8 km/h. d is 4 km because given
b) d2 is 2 km because he travels 30 min at 4 km/h which is 2 km
c) d2 is 2 km because he travels 30 min at 4 km/h which is 2 km and 4 km-2 km is 2 km
d) 2 km at 8 km/hour is 1/4 hour which is 15 minutes so t2 is 15 min.
e) 3:45+15 min is 4:00
1 unit = 2.5 feet.
225/2.5 = 90 feet
40/2.5 = 16 feet
Therefore, 90x16, or vice versa, 16x90. =^)
well for a line, to get its slope all we need is two points, so let's use (-6, 5) and (0, 1), and get the equation of it.
now, where's the y-intercept of that line? well, to get the y-intercept, we set x = 0 and solve for "y"....hmmmm wait a second, notice (0, 1), x = 0, y = 1, that's the y-intercept already.
Answer: Slope= 0.833/2.000= 0.417
Step-by-step explanation:
An obtuse angle is an angle with more than 90 degrees and less than 180. so, we can add < 180 and > 90 to the expression, making it the inequality 180 < 3x + 24 > 90. we then solve.
3x + 24 > 90 and 3x + 24 < 180
3x > 66 and 3x < 156
x > 22 and x < 52
so x can be anything more than 22 and less than 52 (it cannot be 52 or more or 22 or less)
hope this helps!