Answer:
letter choice A and C
Step-by-step explanation:
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Answer: 31 and 1/9
Step-by-step explanation:
d =29, for g=16,h=9
replace values of each number in equati/on:
d+g/h=29+19/9=(9*29+19)/9=( 261+19)/9=280/9= 31 and 1/9
Answer:
The vertex is at (3, -4).
Step-by-step explanation:
You need to convert the function to vertex form.
f(x) = (x - h)^2 + k is vertex form where (h, k) are the coordinates of the vertex.
f(x) = x^2 -6x+5
First we divide the -6 by 2 and convert x^2 - 6x to a squared term and a constant term:
x^2 - 6x + 5 = (x - 3)^2 - 9 + 5 [ we subtract the 9 because (x - 3)^2 = x^2 - 6x + 9)
= (x - 3)^2 - 4 which is vertex form and the required vertex is (3, -4).
39/1.5=26 for the 1.5 hours difference.
divide 26/2=13 for each person.
divide 4/2 for the speed increase of person north. The speeds much average to 13.
subtract 13-2=11 and add 13+2=15 for south and north.
north speed is 15 km per hour and south is 11 km per hour.