When the sun is at a certain angle in the sky, a 100-foot building will cast a 25 -foot shadow. How tall is a person if he casts a -foot shadow at the same time? Enter only the number.

use formula for the circle a=3.14

step-by-step explanation:

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

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

answer: entity is prob the answer

step-by-step explanation: