gizmo987 gizmo987
  • 12-02-2020
  • Mathematics
contestada

Evaluate the expression. If necessary, round to the nearest hundredth.
7^log7 23
A. 7
B. 23
C. log7 23

Respuesta :

Poltergeist
Poltergeist Poltergeist
  • 25-02-2020

Answer:

B. 23.

Step-by-step explanation:

In the expression

[tex]7^{log_7 23 }[/tex]

the logarithm [tex]log_7(23)[/tex] in the exponent is asking us the following question:

"to what power should I raise 7 to as to get 23?"

Let us call that number [tex]x[/tex], then we have

[tex]log_7(23)=x[/tex], which means

[tex]7^x=23[/tex]

or

[tex]\boxed{7^{log_7(23)}=23}[/tex]

which is Choice B.

Answer Link

Otras preguntas

which of these fields is used to classify organisms A: botany B: anthropology C: genetics D: taxonomy
what are the factors for 83
explain how using basic facts can help you find 10 X 20 X 30 X 40 mentally
what is the equation of a line parallel to y=-1/2x 6 that passes through (-4,1)
What is the volume of nitrogen dioxide (in L) is produce from the complete reaction of 16.87g of lead (II) nitrate at STP?
0.75,1/2,0.4,and 1/5
The width of a rectangle is 8cm less than it's length. The perimeter of the rectangle is 52 Cm.
the volume of a cube is given by
oraciones con la palabra the en inglés
Solve this problem please