3 years ago

At what values of x does f(x)=0?

Mathematics

1 answer:

andriy [413]3 years ago

7 0

Answer:

Step-by-step explanation:

Look for the three dots on the x-axis: You find them at -1, 2 and 4.

At these x-values the function has zeros (roots or solutions).

Thus, the 3 correct answers are B (x = 2) and F (x = 4). -1 is also a solution, but is not listed.

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he mayor of a town has proposed a plan for the construction of an adjoining community. A political study took a sample of 160016

Diano4ka-milaya [45]

Answer:

2.60

Step-by-step explanation:

Given that:

n = 1600

$\hat p = 0.34$

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$Z = \dfrac{\hat p - P_o}{\sqrt{ \dfrac{P_o\times (1-P_o) } {n} }}$

$Z = \dfrac{0.34-0.31}{\sqrt{ \dfrac{0.31 \times (1-0.31) } {1600} }}$

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3 years ago