All categories

3 years ago

What is the domain of the function y = l n (x + 2)

Mathematics

2 answers:

Lesechka [4]3 years ago

8 0

x greater than negative 2, because ln(x) is undefined for x <= 0 (-2+2=0, -1.999...+2>0)

inysia [295]3 years ago

5 0

Answer:

Step-by-step explanation:

You might be interested in

Find the value of x

Doss [256]

Answer:

x = 40

Step-by-step explanation:

The three angles in a triangle add to 180 degrees

x + 30 + (3x-10) = 180

Combine like terms

4x +20 = 180

Subtract 20 from each side

4x+20-20 = 180-20

4x= 160

Divide each side by 4

4x/4 =160/4

x = 40

8 0

3 years ago

Given the following two statements, is the compound statement valid? p: Two angles are congruent. q: The angles are vertical Com

maw [93]

No, this is not valid. In the picture below, $\angle a$ is a vertical angle with $\angle b$ . But $\angle a$ is not $\cong \angle b$

5 0

2 years ago

How many 4X4in squares will i need to cover 20ft high 10 ft wide wall

IRINA_888 [86]

Find the area of the squares.
4 ×4 = 16

Find the area of the wall.
20 × 10 =200

Divide 200 by 16.
200 ÷ 16 = 12.5

You need 12.5 squares.

8 0

3 years ago

I need this question for unit test

krek1111 [17]

The answer is this:
A. (6,3)

3 0

2 years ago

Between x=2 and x=3, which function has a greater average rate of change than f(x)=2^x has?

maxonik [38]

Answer: f(3)

Step-by-step explanation:

First find the formula for the rate of change by taking the derivative of 2^x. Let f(x) equal some hypothetical y-value, then take the natural log of both sides.

$y=2^x\\\ln(y)=x \ln(2)$

Implicitly differentiate the left side and take the derivative of the right side

$\frac{y'}{y} =\ln(2)$

Multiply both sides by 'y' which was defined as 2^x

$y'=\ln(2)*2^x$

Plug in x = 2 and x = 3 to see which slope is larger

$y'=\ln(2)*2^2=4\ln(2)\\y'=\ln(2)*2^3=8\ln(2)$

4 0

3 years ago