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Licemer1 [7]
2 years ago
5

(1a) Do 4x and 15 + x have the same value when x is 5? How do you know?

Mathematics
2 answers:
diamong [38]2 years ago
5 0

Answer:

Yes, both have the same value ( 20) when x = 5.

Step-by-step explanation:

We have two functions:

y = 15 + x

y = 4*x

We want to see if these functions have the same value when x = 5.

Then we just need to replace x by 5 in both equations, and see if the values of y are the same

first function:

y = 15 + 5 = 20

second function:

y = 4*5 = 20

So yes, both functions are equal to 20 when x = 5.

serious [3.7K]2 years ago
3 0

Answer:

Yes.

Step-by-step explanation:

4(5)=20

15+5=20

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Find x if L is between N and M, and NL = (6x - 5), LM = (2x + 3), and NM = (3x+13)?
anastassius [24]

Answer:

x = 3

Step-by-step explanation:

Here, we want to find the value of x

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NM = NL + LM

Now, substitute individual values

3x + 13 = (6x-5) + (2x + 3)

3x + 13 = 6x-5 + 2x + 3

3x + 13 = 8x -2

Collect like terms

8x -3x = 13 + 2

5x = 15

x = 15/5

x = 3

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3 years ago
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Find the derivative of the function y = sin(tan 4x)
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If (-3)^-5 =1/x, what is the value of x?
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\bf \left.\qquad \qquad \right.\textit{negative exponents}\\\\
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\qquad \qquad
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x=(-3)(-3)(-3)(-3)(-3)\implies x=-243
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