M is the midpoint of RS. R has coordinates (-2,-3) and M has coordinates (1,0). Find the coordinates of S.

Step-by-step explanation:

Given

Required

Determine the coordinates of S

Midpoint is calculated as:

Where:

Substitute these values in the above formula:

Multiply through by 2

By direct comparison:

and

Solving for x2

Solving for y2

Hence, the coordinates of S is:

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

answer: 48

just remember to use pemdas:

parentheses

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