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3 years ago

The polynomial P(x)=3x^3-5x^2-4x+4 has a factor of (x-2) rewrite P(x) as a product of linear factors

Mathematics

1 answer:

Ivenika [448]3 years ago

4 0

Answer: P(x)=(x+1)(3x−2)(x−2)

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Factor <img src="https://tex.z-dn.net/?f=-%5Cfrac%7B1%7D%7B3%7D" id="TexFormula1" title="-\frac{1}{3}" alt="-\frac{1}{3}" align=

ivanzaharov [21]

10/3 I did the math

4 0

2 years ago

Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence i

Pavlova-9 [17]

Answer:

$\bar X = \frac{Lower +Upper}{2}$

$\bar X= \frac{1.9+3.3}{2}= 2.6$

And the margin of error with this one:

$\bar X = \frac{Upper-Lower}{2}$

$ME = \frac{3.3-1.9}{2}= 0.7$

Step-by-step explanation:

Assuming that the parameter of interest is the sample mean $\mu$ . And we can estimate this parameter with a confidence interval given by this formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

For this case the confidence interval is given by (1.9, 3.3)

Since the confidence interval is symmetrical we can estimate the sample mean with this formula:

$\bar X = \frac{Lower +Upper}{2}$

$\bar X= \frac{1.9+3.3}{2}= 2.6$

And the margin of error with this one:

$\bar X = \frac{Upper-Lower}{2}$

$ME = \frac{3.3-1.9}{2}= 0.7$

7 0

4 years ago

Solve.

Oduvanchick [21]

Answer:

Step-by-step explanation:

There are several approach to solving a quadratic equation; factorization, completing the square, the use of 'the almighty formula etc. Though i didn't see the steps you followed in solving, but from your answer, it is obvious you made good attempt but something is missing, your answer should be (5+√57)/2 or (5-√57)/2

5 0

3 years ago

Read 2 more answers

Find the volume of a cylinder that has a radius of 11 m and a height of 9 m.

hjlf

Answer:

The volume would be 3,421.19m

7 0

3 years ago

NEED ANSWER ASAP- FOR FINALS

blagie [28]

Answer:

Width - 12ft Length - 30ft

Step-by-step explanation:

Width is 12ft

Length is 30ft

Depth is 6ft

The length, 30ft, is 2.5 times longer than the width which is 12 ft which confirms the two dimensions to be correct.

When you multiply all three of the dimensions of the swimming pool you will get 2940 cubic feet

8 0

3 years ago