What value of y satisfies the system of equations {9x+2y=24y=6x+19

Step-by-step explanation:

Equation 1: 9x + 2y = 24y, 9x = 22y, x = 22/9 y.

Equation 2: 24y = 6x + 19,

24y = 6(22/9 y) + 19

24y = 44/3 y + 19

28/3 y = 19

Hence, y = 19 * 3/28 = 57/28.

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

51840000 cm 2

step-by-step explanation: