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sattari [20]
3 years ago
9

Help will mark brainless if ur right ​

Mathematics
1 answer:
Deffense [45]3 years ago
7 0

Answer:

i think the mean is 21 1/2

Step-by-step explanation:

honestly im prob, wrong

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state the domain, the range, and the intervals on which function is increasing, decreasing, or constant in interval notation
erma4kov [3.2K]

Answer:

  • domain (-∞, ∞)
  • range (-∞, 4]
  • increasing (-∞, 0)
  • decreasing (0, ∞)
  • constant (only at x=0, not on any interval)

Step-by-step explanation:

The graph is of the equation y = -x^2 +4. It is a polynomial of even degree, so has a domain of all real numbers: (-∞, ∞).

The vertical extent of the graph includes y=4 and all numbers less than that:

  range: (-∞, 4]

The graph is increasing to the left of its vertex at x=0, decreasing to the right.

  increasing (-∞, 0); decreasing (0, ∞)

There is no interval on which the function is constant. It has a horizontal tangent at x=0, but a single point does not constitute an interval.

8 0
3 years ago
Write the zero of the polynomial p(x) = 5x + 2.
Nookie1986 [14]

Answer:

-2/5

Step-by-step explanation:

p(x) = 5x + 2

plug p(x) = 0

5x + 2 = 0

5x = - 2

x = - 2/5

6 0
3 years ago
Read 2 more answers
How are these three numbers related. 50 1/2, 1/4, 202
Aliun [14]

Answer: If you divide 202/4=50.5 or 50 1/2

Step-by-step explanation:

6 0
2 years ago
-(1 - 9x) - 8 helpppp meeeeeee
madreJ [45]

Answer

9x - 9

Step-by-step explanation

sorry im late

7 0
3 years ago
Help me please I'm really confused
Vanyuwa [196]
The answer is (a).  hopefully this answers your question
4 0
3 years ago
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