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3 years ago

Find the sum of (x²+3xy+y²)+(x³+3x²y+2xy²+y³)

Mathematics

1 answer:

victus00 [196]3 years ago

5 0

X
3
+
3
x
2
y
+
2
x
y
2
+
y
3
+
x
2
+
3
x
y
+
y
2

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The simplified fractional representation of .353535.... is?

lozanna [386]

Answer:

353535 /1000000 equals to 70707/200000

Step-by-step explanation:

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3 years ago

The fraction of defective integrated circuits produced in a photolithography process is being studied. A random sample of 300 ci

Olenka [21]

Answer:

The correct answer is

(0.0128, 0.0532)

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence interval $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

Z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$

For this problem, we have that:

In a random sample of 300 circuits, 10 are defective. This means that $n = 300$ and $\pi = \frac{10}{300} = 0.033$

Calculate a 95% two-sided confidence interval on the fraction of defective circuits produced by this particular tool.

So $\alpha$ = 0.05, z is the value of Z that has a pvalue of $1 - \frac{0.05}{2} = 0.975$ , so $Z = 1.96$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{300}} = 0.033 - 1.96\sqrt{\frac{0.033*0.967}{300}} = 0.0128$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{300}} = 0.033 + 1.96\sqrt{\frac{0.033*0.967}{300}} = 0.0532$

The correct answer is

(0.0128, 0.0532)

4 0

3 years ago

This is a math problem please help

givi [52]

Answer:

woah its me and my answer woah

3 0

2 years ago

Q1) Ms. Garcia baked a 12 pound cake for a birthday party. Bryant ate 1/4 of 1 point

olga55 [171]

Answer:

3 pounds

Step-by-step explanation:

12/4=3 (because we need to see how much bryant ate first)

12-3=9 (original - what bryant ate)

9/3=3 (what was left after bryant finish and what 1/3 of 9 is)

3 0

3 years ago

01.01 LC)

Eddi Din [679]

Answer:

-2, 2

Step-by-step explanation:

The pair of numbers that sum = 0 is:

-2,2

-2 + 2 = 0

5 0

3 years ago

Find the sum of (x²+3xy+y²)+(x³+3x²y+2xy²+y³)​

Find the sum of (x²+3xy+y²)+(x³+3x²y+2xy²+y³)