Identify the property (-5 • 7) 25 = × (7 • 25)

This equation is demonstrating the use of the associative property of multiplication. This property says that when 3 (or more) numbers are connected by either a multiplication sign, it doesn't matter where you put the parenthesis. Since that is what this equation is showing by moving around the parenthesis, this equation is showing The Associative Property of Multiplication.

Multiply.

(-35)25=x(175)

Simplify.

-875=175x

Divide to get x.

-5=x

14 ft 7 inches

step-by-step explanation:

since each model inch corresponds to 25 real inches, 7 model inches will correspond to

7×25" = 175"

at 12" per foot, that is 14 feet, 7 inches.

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