1 year ago

BRAINLIEST (9th grade mathematics)

Mathematics

2 answers:

qwelly [4]1 year ago

7 0

The answer to the question is 10

liraira [26]1 year ago

6 0

Answer:

5 m/min

Step-by-step explanation:

Initial speed = 6 m/ min

Final speedd = 4 m/ min

$Average\:speed\:=\:\dfrac{total\:speed}{2}$

Average speed = $\dfrac{ 6 + 4}{2}$

Avg. Speed = 5 m / min.

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The box-and-whisker plot describes the scores of golfers in a recent tournament.

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The minimum score was 70.

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3 0

3 years ago

Which answer best describes the complex zeros of the polynomial function?

marysya [2.9K]

Answer-

D. The function has one real zero and two nonreal zeros. The graph of the function intersects the x-axis at exactly one location.

Solution-

The given polynomial is,

$f(x)=x^3-x^2+6x-6$

The zeros of the polynomials are,

$\Rightarrow f(x)=0$

$\Rightarrow x^3-x^2+6x-6=0$

$\Rightarrow x^2(x-1)+6(x-1)=0$

$\Rightarrow (x^2+6)(x-1)=0$

$\Rightarrow (x^2+6)=0,(x-1)=0$

$\Rightarrow x=\sqrt{-6},\ x=1$

$\Rightarrow x=1,\ \pm \sqrt6i$

Therefore, this function has only one real zero i.e 1 and two nonreal zeros i.e ±√6i . The graph of the function intersects the x-axis at exactly one location i.e at x = 1