Answer:
8^-2a^7 = a^7/8^2 = a^7/64
Step-by-step explanation:
Answer:
1.5 km/hour
Step-by-step explanation:
d is the David's speed in still water
c is the speed of the current
Going with the current, he travels d+c km per hour.
Going against the current, he travels d-c km per hour.
d+c = (20 km)/(2.5 hours) = 8 km/hour
d-c = (20 km)/(4 hours) = 5 km/hour
Add the equations to eliminate the c terms
d+c = 8
d-c = 5
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2d = 13
d = 6.5 km/hour
c = 8-d = 1.5 km/hour
Answer:
1150 yen
Step-by-step explanation:
There are 15 shares in total. 2+6+7
3450 / 15 = 230
So one share is 230
The smallest share is two
So 2×230 = 460 yen
Biggest share is Seven
So 7×230 = 1610 yen
1610 - 460 = 1150 yen
Answer:
D
Step-by-step explanation:
only solution C and D are linear function, and they are essentially straight lines. However, C have a x intercept of 5/2, so we rule out option C.
Further explanation if you wish to understand the above solution: the formula you are looking for is Y = MX + B where for any given slope (M) and y-intercept (B) you can find the slope-intercept formula.
Hope this helps :)
