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enyata [817]
3 years ago
6

Consider the equation log5(x + 5) = x2.

Mathematics
2 answers:
o-na [289]3 years ago
7 0

Answer:

1.06

Step-by-step explanation:

This log is to the base 5.

Write             5                          5

and then raise the first 5 to the power log5(x + 5)

and the second 5 to the power x^2:

  log5(x + 5)               x^2

5                          =   5

Then we have          x + 5 = 5^(x^2)

We can approximate the solution by graphing x + 5  and 5^(x^2) as two separate functions and then reading off the approximate x-coordinate of the point of intersection.  The calculator indicates that this coordinate is approximately 1.06  (which matches the fourth answer choice).

lina2011 [118]3 years ago
7 0

Answer:on edge it's x=-0.93 andx=1.06

Step-by-step explanation:

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What is the value of r for 19 and 20?
nata0808 [166]

Answer:

19.) r = -4    20.) r = 1

Step-by-step explanation:

19.) Because we know the slope and have some points, we can use point-slope form to find the equation.

Point-slope form is:

y - y1 = m(x - x1)

Substitute the numbers into the equation:

y - 3 = 7/6(x - 1)

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Now that we know the equation, we can put in the x value to find the y (In this case, y = r):

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