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Answer:
y > 11/2
Step-by-step explanation:
Subtract 2y+3 to get the variable term alone on one side.
2y > 11
y > 11/2 . . . . . . divide by the coefficient of y
When r is closest to 1, it is a strong positive correlation. When r is closest to -1 it is a strong negative correlation. When r is about 0.8 or anything similar, it is a weak positive. Similar to if r is -0.8 it would be a weak negative correlation. Hope this helps.
The average speed for the journey from Llanfyllin to Bala is 14 km/h
Average speed is the ratio of total distance travelled to total time taken. Also, average speed can be given as the average of the different speeds.
Let d₁ represent the distance from Llanfyllin to Vyrnwy and t represent the time taken, since the speed is 12 km/h, hence:
12 = d₁/t
d₁ = 12t
Let d₂ represent the distance from Vyrnwy to bala and t represent the time taken. Since they spent the same time, since the speed is 16 km/h, hence:
16 = d₂/t
d₂ = 16t
Average speed = total distance/total time
Average speed = (d₁ + d₂) / (t + t)
Average speed = (12t + 16t) / 2t
Average speed = 28t / 2t
Average speed = 14 km/h
Hence their average speed for the journey from Llanfyllin to Bala is 14 km/h.
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Answer:
= 37 cm^2
Step-by-step explanation:
To find the area of the figure, we will split it into 2 separate shapes.
We have a long skinny rectangle and a shorter wider rectangle.
The long skinny rectangle is 15 cm by 2 cm
The area is given by
A = l*w
A = 15*2 = 20 cm^2
The shorter wider rectangle is 7 cm by (3-2) cm or 7 cm by 1 cm
The side length of the bottom rectangle is found by subtracting the length of the skinny rectangle from the total side length.
( The drawing is not to scale)
The area is given by
A = l*w
A = 7 * 1 = 7 cm^2
To find the area of the figure, we add up the area of the two rectangles
A total figure = rectangle 1 + rectangle 2
= 30 + 7
= 37 cm^2
Answer:
40 mph
MPH=miles per hour
Step-by-step explanation:
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