I’m really stupid. I need help

Mathematics

2 answers:

Gnom [1K]3 years ago

7 0

Answer:

7. 30 8. 1.89

Step-by-step explanation:

30/1=30

9.45/5=1.89

patriot [66]3 years ago

3 0

Answer:

1 box per 30 pounds

1 notebook per 1.89 dollars

Step-by-step explanation:

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The formula for interest is I=Prt. Describe what these letters stand for. Is the formula the same if you are charged interest on

prisoha [69]

Answer:

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3 years ago

Find the value of x pls help

bogdanovich [222]

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Step-by-step explanation:

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Determine the equation of the polynomial, p(x),in both factored and standard form.

melamori03 [73]

We can see that the graph touches $x=-1$ without crossing the x-axis (i.e. it is a double solution), and then there's another zero at $x=2$ (this time it's a crossing zero, so a single solution).

This leads, up to multiple, to the polynomial

$p(x)=a(x+1)^2(x-2)$

If we impose the passing through $(0,4)$ we have

$p(0)=4=a(1)(-2) \iff -2a=4 \iff a=-2$

So, the polynomial is

$p(x)=-2(x+1)^2(x-2)=-2 x^3 + 6 x + 4$

Finally, to solve $p(x)$ , simply look at the graph, searching for the points, where the graph is below the x-axis. You can see that this happens only if $x>2$ , so that's the solution to your question.