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Amiraneli [1.4K]
3 years ago
13

Hi, please help me out with this math problem.

Mathematics
1 answer:
GalinKa [24]3 years ago
6 0

9514 1404 393

Answer:

  x - 4

Step-by-step explanation:

The expression simplifies to ...

  \sqrt{x^2-8x+16}=\sqrt{(x-4)^2}=|x-4|

For x ≥ 4, the argument of the absolute value function is non-negative, so it remains unchanged. The simplified expression is ...

  x - 4 . . . . for x ≥ 4

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Which is the equation of the same line as y = 3x - 8?
Zielflug [23.3K]

Answer:

letter c. 6x-y=16

Step-by-step explanation:

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3 years ago
Find the midpoint of MN. M(-3,8) and N(-7-6)
ohaa [14]

Step-by-step explanation:

use the midpoint formula

-3+-7/2, 8+-6/2

(-5, 1)

3 0
3 years ago
Please solve i and ii for me
KengaRu [80]

If you know the derivative f'(x) of some function f(x), you can tell exactly who f(x) is, up to an additive, constant term. In fact, knowing f'(x), you have

\displaystyle \int f'(x) = f(x)+c

In your case, we have

\dfrac{d}{dx} \sqrt{x+3} = \dfrac{1}{2\sqrt{x+3}}

So, the integral is almost immediate:

\displaystyle\int \dfrac{2}{\sqrt{x+3}} = \int \dfrac{4}{2\sqrt{x+3}} = 4\int\dfrac{1}{2\sqrt{x+3}} = 4\sqrt{x+3}+c

So, up to some constant additive term, our function is 4\sqrt{x+3}+c

To fix this constant, we know that the function passes through the point (6,10), so we have

f(6) = 4\sqrt{6+3}+c = 4\sqrt{9}+c=12+c=10 \iff c=-2

And so our function is 4\sqrt{x+3}-2

If we want to know when this function equals 6, we simply have to ask f(x)=6 and solve for x, so we have

4\sqrt{x+3}-2=6 \iff 4\sqrt{x+3} = 8 \iff \sqrt{x+3} = 2 \iff x+3=4 \iff x = 1

5 0
3 years ago
Please help I don’t know this and I need help really really bad
Alex_Xolod [135]

Answer:

A, B, and C

Step-by-step explanation:

If you want to keep a shape congruent, you would only want to change the positioning of said shape.

Dilation is when you change the size of said shape, so it wouldn't work

Reflections are only reflecting a shape across a certain plane

Rotations are only rotating a shape around a point

Translations are literally just moving a shape

Therefore, the answers without dilation would be correct, so A, B, and C

3 0
3 years ago
Which of the following activities are examples of data gathering
sergey [27]
What activities are the examples there’s nothing there
4 0
4 years ago
Read 2 more answers
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