Solving Exponential Equations (lacking a common base)
4^x-5=8
2 answers:
Answer:
x= 6 1/2 or 6.5
Step-by-step explanation:
4^x-5 =8
2^2(x-5) =2^3
since the base is equal, the powers are equal
2(x-5) = 3
2x - 10 = 3
2x = 3 + 10
2x = 13
2x/2 = 13/2
x = 6 1/2 or 6.5
Answer:
6.5
Step-by-step explanation:
4^(x-5) = 8
2^[2(x-5)] = 2³
Equating powers:
2(x-5) = 3
x-5 = 3/2
x = 13/2 or 6½
You might be interested in
Answer:
0.60, 2/3, 70%, 3/4, .85
Step-by-step explanation:
4*3.5 =14.0
......................
Answer:
$79.17
Step-by-step explanation:
91.00 x 0.13= 11.83 (the discount)
91.00-11.83= $79.17 (the sale price)
384 in³
the volume (V) of a cuboid = length × width × height
V = 12 × 4 × 8 = 384 in³ ← fourth on list
Answer:
17 inches
Step-by-step expl
