2. 15,13,25,21,1
3.1,.25, 12.-1.25, 1.20
4.92, 0.61 0.80
problem 4
a sequence starts with the terms 1 and 10.
1. find the next two terms if it is arithmetic: 1, 10,
2. find the next two terms if it is geometric: 1, 10,
3. find two possible next terms if it is neither arithmetic ne
problem 5

rx and sx

step-by-step explanation:

answer: 48

just remember to use pemdas:

parentheses

expressions

multiplication

division

addition

subtraction

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step-by-step explanation:

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4