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erastova [34]
3 years ago
5

Explain why the graphing calculator cannot be used to solve or approximate solutions to all polynomial equations.

Mathematics
2 answers:
Triss [41]3 years ago
6 0

Did your explanation include the following?

Some polynomial equations have complex solutions.

Therefore, complex solutions cannot be found by graphing the related system or function in the Cartesian (x-y) plane.

Polynomial functions with all complex solutions do not have x-intercepts, and the related system of equations will not intersect.

Yuki888 [10]3 years ago
6 0

Answer:

Some polynomial equations have complex solutions.

Therefore, complex solutions cannot be found by graphing the related system or function in the Cartesian (x-y) plane. Polynomial functions with all complex solutions do not have x-intercepts, and the related system of equations will not intersect.

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Help pls, math due tonight :(
Olenka [21]

9514 1404 393

Answer:

  • 40 ft
  • t = 1 second

Step-by-step explanation:

A graphing calculator answers these questions easily.

The ball achieves a maximum height of 40 ft, 1 second after it is thrown.

__

The equation is usefully put into vertex form, as the vertex is the answer to the questions asked.

  h(t) = -16(t^2 -2t) +24

  h(t) = -16(t^2 -2t +1) +24 +16 . . . . . . complete the square

  h(t) = -16(t -1)^2 +40 . . . . . . . . . vertex form

Compare this to the vertex form:

  f(x) = a(x -h)^2 +k . . . . . . vertex (h, k); vertical stretch factor 'a'

We see the vertex of our height equation is ...

  (h, k) = (1, 40)

The ball reaches a maximum height of 40 feet at t = 1 second after it is thrown.

8 0
3 years ago
Answer all questions CORRECTLY BIG POINTS!
hammer [34]
  • y^2+9y+20
  • y^2+10y+21
  • y^2+2y+3
  • Step-by-step explanation:
  1. (y+5(y+4) =y(y+4)+5(y+4) =y^2+4y+5y+20 =y^2+9y+20
  2. (y+3(y+7) =y(y+7)+3(y+7) =y^2+7y+3y+21 =y^2+10y+21
  3. (y+3)(y-1)

=y(y-1)+3(y-1)

=y^2-y+3y-3

= y^2+2y+3

5 0
3 years ago
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Virty [35]
The correct answer would be (C.) x>90
3 0
3 years ago
A small town has two local high schools. High School A currently has 800 students and is projected to grow by 55 students each y
Neko [114]

Answer:

40

Step-by-step explanation:

6 0
2 years ago
Evaluate the function. Find f(x+3). f(x)=2x+7
ikadub [295]

Answer:

2x+13

Step-by-step explanation:

Plug in (x+3) in the F(x) function so:

f(x+3) = 2(x+3) + 7 = 2x+6+7 =2x+13

ANSWER: F(x+3) = 2x+13

3 0
3 years ago
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