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natka813 [3]
3 years ago
5

What is the answer for 7-2x=2(x-4)-1

Mathematics
2 answers:
Vaselesa [24]3 years ago
7 0

Answer:

x=4

Step-by-step explanation:

7-2x=2x-8-1--->distributive property

-4x=-16--->subtraction property

x=4--->division property

maks197457 [2]3 years ago
7 0
X is equal to four.
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Let f(x)=x^2+2x+3 . What is the average rate of change for the quadratic function from x=−2 to x = 5?
miskamm [114]
To find the average rate of change of  given function f(x) on a given interval (a,b):

Find f(b)-f(a), b-a, and then divide your result for f(b)-f(a) by your result for b-a:


f(b) - f(a)
------------
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Here your function is f(x) = x^2 - 2x + 3.  Substituting b=5 and a=-2,
f(5) = 5^2 -2(5)+3 =?                          and f(-2) = (-2)^2 - 2(-2) + 3 = ?


Calculate           f(5) - [ f(-2) ]
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Your answer to this, if done correctly, is the "average rate of change of the function f(x) = x^2+2x+3 on the interval [-2,5]."
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3 years ago
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mrs_skeptik [129]

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Step-by-step explanation:

4 0
2 years ago
What is the percent equation for 46% of 127?
Brut [27]

Answer:

46% of 127 is 58.42

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46/100 = x/127

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3 0
3 years ago
An arithmetic sequence has this recursive formula:
horsena [70]

Answer:

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Step-by-step explanation:

An arithmetic sequence that is described by the explicit formula ...

  a_n=a_1+(n-1)d

can also be described by the recursive formula ...

  \left \{\begin{array}{l}a_1=\text{(first term)}&a_n=a_{n-1}+d&\end{array}\right.

Matching parts of the formulas, we see that a1 = 4, d = -7. Putting these values into the explicit formula gives ...

a_n=4+(n-1)(-7)

4 0
3 years ago
Help<br><br> find the value of x
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Answer: i believe

that x does not have a value

Step-by-step explanation:"variable" or sometimes an "unknown"

8 0
3 years ago
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