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sineoko [7]
3 years ago
11

Rewrite the following expression in logarithmic form and use that to solve for the variable. Show all work done in this process.

2ex = 6
Mathematics
1 answer:
Llana [10]3 years ago
7 0

Answer:

ln(e^x)=ln(3)

x=1.099

Step-by-step explanation:

You have the following exponential expression:

2e^x=6

You need to divide both sides of the equation by 2:

\frac{2e^x}{2}=\frac{6}{2}\\\\e^x=3

Now apply the function Natural logarithm to both sides of the function:

ln(e^x)=ln(3)

Note that now the exponential function is transformed into a logarithmic function.

By definition:

ln(e^x)=x Because the base of the Natural logarithm is the Euler's number "e".

Then you can solve for "x":

x=ln(3)\\x=1.099)

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Given the piecewise function shown below, select all of the statements that are true.
mafiozo [28]
A.  f(1)=5   (as defined on the second line, x=1)   TRUE  because f(1)=5
B.  f(5)=5^2=25 (as defined on third line, x>1)   FALSE   because f(5) ≠ 1
C. f(-2)=2(-2)=-4  (as defined on first line, x<1)  FALSE   because f(-2) &ne; 4
D. f(2)=2^2=4  (as defined on third line, x>1)   TRUE   because f(2)=4
8 0
4 years ago
if 2/3 of the girls in class have brown eyes and one fourth of the girls have blue eyes what fraction of girls in class have nei
Virty [35]
1/3: doesn't have brown eyes
3/4: doesn't have blue eyes

1/3 x 3/4 = 1/4

So, 1/4 of the class has neither brown or blue eyes.
5 0
3 years ago
I need help PLEASE!!!!
nikitadnepr [17]

Answer:

OPTION A

OPTION B

OPTION D

Step-by-step explanation:

Given that a bag of apples cost 'a' dollars.

A bag of oranges cost 'a + 2' dollars.

Therefore, one bag each of apples and oranges should cost: a + a + 2 dollars.

Since, Dorie buys 5 bags of apples and Oranges, it would have costed her:

5(a + a + 2)

= 5(2a + 2)

= 10a + 10

Hence, OPTION A, B and D are the correct answers.

6 0
3 years ago
A peregrine falcon can fly 332 kilometers per hour.How many meters per hour can the falcon fly.
devlian [24]
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So, 332 kilo =  332000 meters
8 0
3 years ago
Please solve this question
ANTONII [103]

The probability that a randomly selected x-value from the distribution will be in the interval:

  • P(35 < x < 45) = 0.6827 and,
  • P(30 < x < 40) = 0.47725

<h3>What is the probability of a normal distribution?</h3>

The probability of a normal distribution can be determined from the symmetrical curve between 1 to 100%.

From the information given:

  • Mean = 40
  • Standard deviation = 5

To determine the probability that a randomly selected x-value is in the given interval:

  • P(35<x<45)
  • P(30<x<40)

P(35 < x < 45) = P(\dfrac{35-40}{5} < Z < \dfrac{45-40}{5})

P(35 < x < 45) = P(\dfrac{-5}{5} < Z < \dfrac{5}{5})

P(35 < x < 45) = P(-1 < Z < 1)

\mathbf{P(35 < x < 45) = P[Z\le 1] -P[Z\le -1]}

Using normal distribution table:

P(35 < x < 45) = 0.8414 - 0.1587

P(35 < x < 45) = 0.6827

P(30 < x < 40) = P(\dfrac{30-40}{5} < Z < \dfrac{40-40}{5})

P(30 < x < 40) = P(\dfrac{-10}{5} < Z < \dfrac{0}{5})

P(30 < x < 40) = P(-2 < Z < 0)

\mathbf{P(30 < x < 40) = P[Z\le0]-P[Z\le -2]}

Using normal distribution table:

P(30 < x < 40) = 0.5 - 0.02275

P(30 < x < 40) = 0.47725

Learn more about the probability of a normal distribution here:

brainly.com/question/4079902

#SPJ1

3 0
2 years ago
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