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2 years ago

Four polynomial functions are shown below:

1 answer:

6 0

Easiest way is to subsitute 1 for x and evaluate then -2 for x and evaluate
if they evaluate to 0 then they are roots

f(x)
if we did 1 for first one we get f(1)=-12 so 1 is not a zero

g(x)
if we did 1 for g(x) we get g(1)=-4, so 1 is not a zero

p(x)
if we did 1 for p(x) we get p(1)=6 so 1 is not a zero

t(x)
if we did 1 for t(x) we get t(1)=0, so 1 is a zero
try -2
if we did -2 for t(x) we get t(-2)=0, so it is also a zero

t(x) is answer

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A quality control engineer at a potato chip company tests the bag filling machine by weighing bags of potato chips. Not every ba

Ahat [919]

Answer:

$z=\frac{0.21 -0.15}{\sqrt{\frac{0.15(1-0.15)}{100}}}=1.68$

Step-by-step explanation:

Information provided

n=100 represent the random sample taken

X=21 represent the number of bags overfilled

$\hat p=\frac{21}{100}=0.21$ estimated proportion of overfilled bags

$p_o=0.15$ is the value that we want to test

z would represent the statistic

Hypothesis

We need to conduct a hypothesis in order to test if the true proportion of overfilled bags is higher than 0.15.:

Null hypothesis: $p =0.7$

Alternative hypothesis: $p > 0.15$

The statistic for this case is:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

And replacing the info given we got:

$z=\frac{0.21 -0.15}{\sqrt{\frac{0.15(1-0.15)}{100}}}=1.68$

5 0

2 years ago

Equation that equals 69?

Anna007 [38]

3x23=69 is the equation that has the sum 69

5 0

2 years ago

Read 2 more answers

What are these fractions in simplest form?

Anton [14]

$\frac{16y^{3}}{20y^{4}} = \frac{4}{5y}$
$\frac{6xy}{16y} = \frac{3x}{8}$
$\frac{abc}{10abc} = \frac{1}{10}$
$\frac{mn^{2}}{pm^{5}n} = \frac{n}{pm^{4}}$
$\frac{12h^{3}k}{16h^{2}k^{2}} = \frac{3h}{4k}$
$\frac{8x}{10y} = \frac{4x}{5y}$
$\frac{24n^{2}}{28n} = \frac{6n}{7}$
$\frac{30hxy}{54kxy} = \frac{5h}{9k}$
$\frac{5jh}{15jh^{3}} = \frac{1}{3h^{2}}$
$\frac{20s^{2}t^{3}}{16st^{5}} = \frac{5s}{4t^{2}}$

8 0

2 years ago

Suppose you take the small prism and stack it on top of the larger prism. What will be the volume of the composite figure?

Degger [83]

Find the volume of the first figure, then find the volume of the second figure, then add them together.
V=lwh
V(1)=(15)(12)(6)
= 1,080in^3
V(2)=(12)(6)(6)
= 432in^3
--------------------------------------------
1,080+432= 1,512 in^3
--------------------------------------------
Your answer should be 1,512

3 0

2 years ago

the store employee works 35 hours per week,which inequality can be used to find the dollar value x, of weekly sales that the emp

Zigmanuir [339]

35x > 400 <== ur inequality
x > 400/35
x > 11.428 rounds to 11.43

7 0

2 years ago

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