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3 years ago

Ill mark brainliest, question is attached

Mathematics

1 answer:

photoshop1234 [79]3 years ago

5 0

Answer:

5 is the answer!!!

Step-by-step explanation:

if its not im sorry lol

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Simplify the following expression and then write down the coefficient of x²: x² + x² + x² + x²

lapo4ka [179]

Answer:

The expression is 4x² and coefficient is 4.

Step-by-step explanation:

All have the same variables, x², so you add up together :

$1{x}^{2} + 1{x}^{2} + 1{x}^{2} + 1{x}^{2}$

$= 4 {x}^{2}$

7 0

3 years ago

Find a formula for the inverse of the function. f(x) = e^6x − 9

STatiana [176]

Answer:

$f^{-1}(x)=\frac{1}{6}\ln(x+9)$

Step-by-step explanation:

So we have the function:

$f(x)=e^{6x}-9$

To solve for the inverse of a function, change f(x) and x, change the f(x) to f⁻¹(x), and solve for it. Therefore:

$x=e^{6f^{-1}(x)}-9$

Add 9 to both sides:

$x+9=e^{6f^{-1}(x)}$

Take the natural log of both sides:

$\ln(x+9)=\ln(e^{6f^{-1}(x)})$

The right side cancels:

$\ln(x+9)=6f^{-1}(x)$

Divide both sides by 6:

$f^{-1}(x)=\frac{1}{6}\ln(x+9)$

And we're done!

7 0

3 years ago

compare the right-hand and left-hand derivatives to show that the function is not differentiable at the point P. find all points

Softa [21]

$f(x)= \left \{ {{ \sqrt{x} } \atop {2x-1}} \right. 
\\
\\ f'(x)= \left \{ {{ \frac{1}{2\sqrt{x}} } \atop {2}} \right. 
\\
\\ f'(1)= \left \{ {{ \frac{1}{2}} \atop {2}} \right. 
\\
\\ f'(1^-) \neq f'(1^+)$

Therefore, the function is not differentiable at x = 1.

$f(x)= \sqrt{x} 
\\
\\f'(x)= \frac{1}{2 \sqrt{x} } 
\\
\\f'(0)=\frac{1}{2 \sqrt{0} } = \infty$

Therefore, the function is not differentiable at x = 0.

3 0

3 years ago

The power P required to do a fixed amount of work varies inversely as the time t. If a power of 15 J/h is required to do a fixed

Ira Lisetskai [31]

Answer:

7.5

Step-by-step explanation:

if 2h =15j/h

then 1h=1/2 *15

=7.5

4 0

3 years ago

Read 2 more answers

Need a quick answer please

Olenka [21]

Step-by-step explanation:

2x + 5 = I / 2 ×16

2x=3

x=3/2

7 0

3 years ago