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Svet_ta [14]
3 years ago
10

URGENT. Find f(3) if f(x)=x^3 + 2x^2-x-1

Mathematics
2 answers:
Shalnov [3]3 years ago
7 0
The answer is 41 because x = 3
KonstantinChe [14]3 years ago
6 0

Answer:

41

Step-by-step explanation:

Jus replace x with 3 and put it in a calculator.

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At sunset the temperature was 4 dgrees. the next morning at sunset it was -7 degrees. what is the difference betweeen these temp
DedPeter [7]

The difference between these temperatures for the sunset is found as 11 degrees.

<h3>What is temperature difference?</h3>

In science, the term Delta T (ΔT) refers to the temperature between two measuring points. The temperature varies according to time and/or location.

Some key features regarding the temperature difference are-

  • Merus, for example, uses it to assess the effectiveness of such a heat exchanger.
  • Or to evaluate the effectiveness of a heating or cooling system.
  • A fourth letter of a Greek alphabet is, (Δ). Whereas is the capital letter symbol and the lower case letter.
  • The sign is also used in mathematics. Describes the "difference" between any two changeable quantities. T is a value in a process that represents a difference between two observed temperatures.

Now, according to the question;

Let the initial temperature be 'T' = 4 degrees.

Let the final temperature be 't' = -7 degrees.

Therefore, the temperature difference is;

ΔT =  T - t

     = 4 - (-7)

     = 4 + 7

ΔT = 11

Therefore, the difference between these temperatures is 11 degrees.

To know more about the temperature difference, here

brainly.com/question/24746268

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8 0
2 years ago
How can you tell if a function is linear by looking at the graph or the equation​
MrMuchimi
Every linear graph is just a straight line, so if there are any curves or unnatural shapes, than you know it is not linear. As for equations, if it can be shaped into y=mx+b where m and b are numbers, then it will be a linear equation.
7 0
3 years ago
Which graph represents this equation?
antiseptic1488 [7]

Answer:

The third option. I’m not 100% sure but I do think that’s the answer

Step-by-step explanation:

6 0
3 years ago
What is the solution of log(3x − 2)125 = 3?
Reil [10]
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Bill needs to build a rectangular sheep pen
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Perimeter = 24m

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Cost of one metre = €2.40

Cost of fencing = 24 × 2.40 = €57.60

HOPE THIS WILL HELP YOU

7 0
4 years ago
Read 2 more answers
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