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3 years ago

Simplify to find the equivalent expression help plzzz

Mathematics

2 answers:

Yuki888 [10]3 years ago

8 0

Answer:

-16n - 41

Step-by-step explanation:

You do 2 X - n which is - 2n
Then do 2 X - 3 which is - 6
Then - 7 X 5 which is - 35
Then - 7 X 2n which is - 14n
You get - 2n - 6 - 35 - 14n
Simplify and you get - 16n - 41

inn [45]3 years ago

5 0

Answer: The answer should be B, -16n - 41

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A floor tile is 20 inches wide. If the perimeter of the tile is 72 inches, what is the length of the tile?

Jobisdone [24]

Answer:

16 inches

Step-by-step explanation:

Given,

Perimeter = 72 inches

Breadth = 20 inches

Perimeter = 2 ( L+B )

72 = 2 ( L+20)

72= 2L + 40

72-40=2L

32/2=L

L=16 inches

therefore , lenght of the tile is 16 inches

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3 years ago

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Answer:

$R = \{ \forall x \in \mathbf{R}|-\infty < x < \infty\}$

Step-by-step explanation:

The definition of derivative states that:

$g'(t) = \lim_{h \to 0} \frac{g(t+h)-g(t)}{h}$

Then:

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$g'(t) = \lim_{h \to 0} 7$

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A constant function is a zero-order polynomial. The domain of any real polynomial is $\mathbf{R}$ . Then, the domain of the function is:

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3 years ago

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Arada [10]

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3 years ago

Victoria recently switched to a new electric company. If she uses between 0 and 400 kilowatt-hours (kWh) of electricity per mont

Gekata [30.6K]

Answer:

see the explanation

Step-by-step explanation:

The question is

Identify the domain and the range, using words and inequalities

Let

x -----> the number of kilowatt-hours (kWh) of electricity per month

y ----> the price per month

we know that

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$0\ kWh \leq x < 400\ kWh$

The price is equal to

$y=\$30$

therefore

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The domain is all real numbers greater than or equal to 0 kWh and less than 400 kWh

The range is ($30)

The range is equal to $30

Part 2) For the value of x equal to 400 kWh or more per month

$x\geq 400\ kWh$

The domain is the interval -----> [400, infinite)

The domain is all real numbers greater than or equal to 400 kWh

The price is

$y=0.097x$

Find the range

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3 years ago

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Nimfa-mama [501]

Nothing crazy here, just a matter of figuring out the limits of integration.

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3 years ago