Rob is investigating the effects of font size on the number of words that fit on a page. He changes the font size on an
and records the number of words on one page of the essay. The table shows his data.
Words per Page
14
12
16
10
12
12
14
16
18
24
22
Font
Size
Word
Count
352
461 340
407
435
381280
201
138
114
Which equation represents the approximate line of best fit for data, where x represents font size and y represents the
number of words on one page?
Oy=-55x + 407
y=-41x + 814
O y=-38x + 922
o y=-26x + 723

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

bn,mn,n.vn.

step-by-step explanation:

x =-.20752

step-by-step explanation:

4^(x+2)=12

4^(x+2)=12

take the log base 4 on each side

log 4 (4^(x+2) = log 4(12)

we know log b(a^y) = y log b (a)

(x+2) log 4(4) = log 4 (12)

x+2 = log 4 (12)

we know   logb c = loga c/loga b

we want to convert to base 10   so a = 10

by default, we do not write the 10   c = 4   and b = 10

log4 10 = log 12/log 4

log4 10 = log 12/ log 4

x+2 = log 12/ log 4

subtract 2 from each side

x +2 -2 = log 12/ log 4 -2

x = 1.79248125 -2

x =-.20752