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3 years ago

The decibel level of sound in a quiet office is 10−6watts/m2.

Mathematics

1 answer:

Liono4ka [1.6K]3 years ago

4 0

I don’t understand your question can you explain it more

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3^2 - 2x + 4 and g(x) = 5x^2 + 6x - 8 find f-g(x)

sveta [45]

Answer:

For the given functions f(x) and g(x) $(f-g)(x) = -2x^{2} - 8x +12$

Step-by-step explanation:

Here, the given function are:

$f(x) = 3x^{2} - 2x+ 4\\g(x) = 5x^{2} + 6x -8$

Now, simplifying for (f-g)(x) = f(x) - g(x):

$f(x) - g(x) = (3x^{2} - 2x+ 4) - (5x^{2} + 6x -8)$

$= 3x^{2} - 2x+ 4- 5x^{2} - 6x +8$

Doing operation on LIKE TERMS, we get

f(x) - g(x) = $( 3x^{2}- 5x^{2}) + (-2x - 6x) +( 4 +8) = -2x^{2} - 8x + 12$

Hence, for the given functions f(x) and g(x) $(f-g)(x) = -2x^{2} - 8x +12$

4 0

4 years ago

Which is the graph of the inequality y ≥ 2x + 3

Charra [1.4K]

It's B, remember when you have _ ( referring to =) you have straight line, but when it's just < or > you have dotted line

7 0

3 years ago

Please help ill mark brainlyst please

kozerog [31]

Answer:

x = 8°

y = 21°

Step-by-step explanation:

27 + 3y = 90

3y = 63

y = 21°

x + 8x + 18 = 90

9x = 72

x = 8°

3 0

3 years ago

Which line has a slope of 1/2 and a negative y-intercept? *

vivado [14]

Answer:

Step-by-step explanation:

4 0

3 years ago

What are two steps are necessary to put this equation into standard form x^2 - 3x + 27 =8x- 3

Wittaler [7]

Answer:

you need to bring the 8x over then the -3

Step-by-step explanation:

X^2-3x+27=8x-3

X^2-11x+27=-3

x^2-11x+24

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Brainliest??

7 0

4 years ago