It takes Abby 3 hours to drive from Ashdown to Bridgeton at an average speed of 60 mph. She then drives 30 miles from Bridgeton to Carton at an average speed of 40 mph. Assuming Abby doesn't stop, what is her average speed from Ashdown to Carton to 1 dp?

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.

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step-by-step explanation:

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look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).

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