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polet [3.4K]
3 years ago
8

Solve this equation for x. round your answer to the nearest 0 = ln (x+6)

Mathematics
1 answer:
MissTica3 years ago
4 0

Answer: x=-5

Step-by-step explanation:

To solve this exercise you need to remember the following:

e^{lnx}=e^{lny} → x=y

Therefore, keeping the above on mind, you can solve for x as following:

e^0=e^{ln(x+6)}

e^0=x+6

Remember that, by definition: a^0=1, then you have:

1=x+6

Subtract 6 from both sides of the equation.

Then the value of x is:

1-6=x+6-6\\x=-5

You might be interested in
What is are the solutions to | x+4 |= 3x-5?
bonufazy [111]

Answer:

x = \frac{9}{2}

Step-by-step explanation:

The absolute value always returns a positive value but the expression inside can be positive or negative, that is

x + 4 = 3x - 5 ( subtract 3x from both sides )

- 2x + 4 = - 5 (subtract 4 from both sides )

- 2x = - 9 ( divide both sides by - 2 )

x = \frac{9}{2}

OR

-(x + 4) = 3x - 5

- x - 4 = 3x - 5 ( subtract 3x from both sides )

- 4x - 4 = - 5 ( add 4 to both sides )

- 4x = - 1 ( divide both sides by - 4 )

x = \frac{1}{4}

As a check

Substitute these values into the equation and if both sides are equal then they are the solutions

| \frac{9}{2} + 4 | = | \frac{17}{2} | = \frac{17}{2}

right side = \frac{27}{2} - 5 = \frac{17}{2}

left side = right side , thus x = \frac{9}{2} is a solution

check second solution

| \frac{1}{4} + 4 | = |  \frac{17}{4} | = \frac{17}{4}

right side =   \frac{3}{4} - 5 = -   \frac{17}{4}

right side ≠ left sides, hence not a solution

7 0
4 years ago
What is the slope of the line represented by the equation f(x)=-3x+7 A. -7 B. -3 c. 3 D. 7​
Kisachek [45]

Answer:

B. -3

Step-by-step explanation:

check image for reference. <3

(this is what I am learning so I have some other pictures as well.)

8 0
4 years ago
An element with mass 290 grams decays by 13.2% per minute. How much of the element is remaining after 14 minutes, to the nearest
FinnZ [79.3K]

Answer:

39.96g

Step-by-step explanation:

8 0
3 years ago
using the pythagorean theorem, find the length of a leg of a right triangle if the other leg is 8 feet long and the hypotenuse i
8_murik_8 [283]
Phthagorean theorme is
a^2+b^2=c^2
where you have a right triangle and c =hypotonuse( normally the longest side, and opposite of right angle)
a and b are the legs

so we are given
one leg=8
hypotonues=10
subsitute
leg=a or b so just subsitute for one
subsitutt  for b
a^2+8^2=10^2
expand
8^2=64
10^2=100
a^2+64=100
subtract 64 from both sides
a^2=36
square root both sides
a=6
answe ris 6 feet
8 0
3 years ago
A triangle has two sides of lengths 7 and 9.what value could the length of the third side be?
Diano4ka-milaya [45]
The side length has to be between 2 (=9-7) and 16 (=9+7). In both these corner cases the triangle will have collapsed to a line.

So the correct answers are B,C,D and E, and F is a corner case. Theoretically I suppose you have to count F in as a valid answer.
7 0
3 years ago
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