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Delvig [45]
2 years ago
15

What are the features of the quadratic function f(×) =×2 +10×+21?​

Mathematics
1 answer:
laiz [17]2 years ago
8 0

A is the correct answer

Or

Vertex = (-5,-4), y-intercept = (0,21), x-intercepts = (-7,0) and (-3,0), axis of

symmetry is x = -5

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A bouncing ball reaches a height of 54 inches at its first peak, 36 inches at its second peak, and 24 inches at its third peak.
sesenic [268]

Answer:

f(x) = 54(two-thirds) Superscript x minus 1

Step-by-step explanation:

Given that:

First peak : 36 / 54=2/3

Second peak : 24 / 36 = 2/3

The common ratio here is 2/3 ; which mean each bounce height is 2/3 of previous height

Modeling this using geometric progression :

An=a1r^(n-1)

An = nth term of a geometric progression

a1=first term

r=common ratio = 2/3

n = nth term

a1=54

Substituting into the above formular :

An=54(2/3)^(n-1)

4 0
2 years ago
Read 2 more answers
I need help !! I don’t understand this one
Tasya [4]

Answer:

I think it's the 3rd one

5 0
2 years ago
Find f(x) and g(x) so that the function can be described as y = f(g(x)).
mote1985 [20]
let g(x) = x^2+2 let f(x) = 9/x f(g(x)) is therefore equal to f(x^2 + 2) which is equal to 9/(x^2+2).
5 0
3 years ago
Please help! Thank youuuu!
ExtremeBDS [4]
F(x) = 3x² + 6x - 1

The graph is a parabola open upward (a= 3>0) with a minimum.

Calculate the vertex:

x = -b/2a → x = -6/(2.3) = -1. Then the axis of symmetry is x = - 1
Now to calculate the minimum, plugin the value of x:

y = 3x² + 6x - 1

y = 3(-1)² + 6(-1) -1

y= 3 - 6 -1 and y = - 4,

Ten the vertex (minimum) is at (-1,- 4)


4 0
3 years ago
Please hellllp!Thank you so much.<br><br><br> (see the picture)
SpyIntel [72]

Answer:

147.33

Step-by-step explanation:

mupitply 26*17 and then dived my 3

3 0
3 years ago
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