In the diagram below of triangle BCD, E is a midpoint of BC and F is a midpoint of CD. If EF = 2x + 4, and BD 10x – 40, what is the measure of EF?
E
А
D

maybe showing the graph would

step-by-step explanation:

-387129 iq

chase is right because he already been to the swings and he know how far it will be to get there

step-by-step explanation:

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for