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Blizzard [7]
3 years ago
7

Brainiest is given to whoever answers right!

Mathematics
1 answer:
Brilliant_brown [7]3 years ago
5 0

Answer:

B

Step-by-step explanation:

Given inequality is open at - 3 and closed at 4. Therefore the required inequality would be:

- 3 < x \leqslant 4

Thus, option B is the correct answer.

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The triangle has a base of 4 and a height of 2.
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(-2-3 radical2) (5-4i radical2)
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3 years ago
The following function represents the profit P(n), in dollars, that a concert promoter makes by selling tickets for n dollars ea
Gre4nikov [31]
A) zeroes

P(n) = -250 n^2 + 2500n - 5250

Extract common factor:

P(n)= -250 (n^2 - 10n + 21)

Factor (find two numbers that sum -10 and its product is 21)

P(n) = -250(n - 3)(n - 7)

Zeroes ==> n - 3 = 0  or n -7 = 0
Then n = 3 and n = 7 are the zeros.

They rerpesent that if the promoter sells tickets at 3  or 7 dollars the profit is zero.

B) Maximum profit

Completion of squares

n^2 - 10n + 21 = n^2 - 10n + 25 - 4 = (n^2 - 10n+ 25) - 4 = (n - 5)^2 - 4

P(n) = - 250[(n-5)^2 -4] = -250(n-5)^2 + 1000

Maximum ==> - 250 (n - 5)^2 = 0 ==> n = 5 and P(5) = 1000

Maximum profit =1000 at n = 5

C) Axis of symmetry

Vertex = (h,k) when the equation is in the form A(n-h)^2 + k

Comparing A(n-h)^2 + k with - 250(n - 5)^2 + 1000

Vertex = (5, 1000) and the symmetry axis is n = 5.



8 0
3 years ago
a student found the slope of a line that passes through the points (1,14) and (3,4) to be 5. what mistake did she make?
SSSSS [86.1K]
M = (y2-y1)/(x2-x1)
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3 years ago
1.0315 x 10^ written in standard notation
Katyanochek1 [597]

Answer:

10.315

Step-by-step explanation:

7 0
3 years ago
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