roodyya23 roodyya23
  • 01-08-2021
  • Mathematics
contestada

2^12÷2^(k/2 )= 32 find k​

Respuesta :

devishri1977
devishri1977 devishri1977
  • 01-08-2021

Answer:

k = 14

Step-by-step explanation:

Prime factorize 32

32 = 2 * 2 * 2 * 2 * 2  = 2⁵

[tex]\frac{2^{12}}{2^{\frac{k}{2}}}= 32\\\\\frac{2^{12}}{2^{\frac{k}{2}}}=2^{5}\\\\2^{12-\frac{k}{2}}=2^{5}[/tex]

Both sides base are same.So, compare exponents

[tex]12-\frac{k}{2}=5\\[/tex]

Subtract 12 from both side

[tex]-\frac{k}{2}=5-12\\\\-\frac{k}{2}=-7\\[/tex]

Multiply both sides by (-2),

[tex](-2)*(-\frac{k}{2})=-7*(-2)\\\\k = 14[/tex]

Answer Link

Otras preguntas

reduce 15 1/4 +1 1/2 +3/20 to lowest term.
Which sign is the less sign and which one is the greater sign (can someone please tell me I really need help! and I never understand the signs!) is this greater
Can you explain 3x+4/5=7/10. Solve
Which decimal is equivalent to 3/8?
Why can't plants and animals use the nitrogen directly from the atmosphere? Answer A.There is not enough of it in the air. B.Nitrogen gas contains the element i
Madison was driving at 40 mph and went 80 miles. How long did it take madison?
How many combinations of 3 students can a teacher choose from 32 students?   A. 96
What is the value of 6P6?  A.1  B.36  C.720  D.46,656
Indicate which pattern of evolution is shown by the many species of finches on the Galápagos Islands.
Okay so I have three tests tomorrow. Haven't even started studying for two of them (Literature and History) but I already know science. How do you all learn 40