Answer:
k = 13
Step-by-step explanation:
20 ^ k / 20^4 = 20^9
knowing the laws of exponents, diving two numbers of the same base with exponents is like subtracting the exponents, so
k^x / k^y
= k ^ (x - y)
apply that knowledge here
20 ^ k / 20 ^ 4 = 20 ^ 9
20 ^ ( k - 4 ) = 20 ^ 9
now the bases have no use here so ignore them, and just calculate the exponents
k - 4 = 9
solve using inverse operations
k - 4 = 9
+4 +4
k = 13
Answer:
I can't see the options of steps you have but here is my answer. First step is to subtract 60 from both sides so that leaves you with -3b= 60-27.
Answer: 3.2
Step-by-step explanation: (2/5)/(1/8)=(2/5)*8= 16/5=3 1/5=3.2
Perimeter is equal to twice the width plus twice the length. P=2w+2(3w-4)
Apply the distributive Property P=2w+6w-8
Simply p=8w-8 the expression 8w-8
represents the perimeter of the singles tennis court.