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VLD [36.1K]
3 years ago
9

Do the functions have the same concavity? f(x)=2x^2-10x-30

Mathematics
2 answers:
kumpel [21]3 years ago
5 0

Answer:

Use the inflection points to set up intervals. Substitute a value into each interval to find where the curve is concave up or down.

The graph is concave up

Gnom [1K]3 years ago
4 0

Answer:

Step-by-step explanation:

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What is the maximum number of relative extrema a polynomial function can have?
creativ13 [48]
Relative extrema occur where the derivative is zero (at least for your polynomial function). So taking the derivative we get

<span>20<span>x3</span>−3<span>x2</span>+6=0

</span><span> This is a 3rd degree equation, now if we are working with complex numbers this equation is guaranteed to have 3 solutions by the fundamental theorem of algebra. But the number of real roots are 1 which can be found out by using Descartes' rule of signs. So the maximum number of relative extrema are 1.</span>
4 0
3 years ago
Ramon plays a game which his older sister he first gains 5 points then loses 8 points and finally gains 10 points what is his fi
vladimir1956 [14]

Answer:

7 points

Step-by-step explanation:

started out w/ 5 points, then loses 8

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2 years ago
Three coins are tossed. find the probability that two lands on heads
NeX [460]
Only 1 coin lands on tales of 2 coins landed on heads
8 0
3 years ago
Need help ASAP please!!
Hoochie [10]

Answer:

4km

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8 0
3 years ago
Line segment ab has endpoints a(9, 3) and b(2, 6). find the coordinates of the point that divides the line segment directed from
Dominik [7]
When we are to divide the line segment such that the ratio is 1:2, there are actually 3 parts of the segment. First, we determine the distance between the coordinates and divide the distance by 3. Then, we add the quotient to the x-coordinate.

x-coordinate:    (2 - 9) / 3 = -7/3
y-coordinate:    (6 - 3 ) / 3 = 1

Adding them to the coordinates of a,
           x - coordinate: (9 - 7/3) = 20/3
           y - coordinate: (3 + 1) = 4
Thus, the coordinates are (20/3, 4). 
7 0
3 years ago
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