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3 years ago

2X^2 - 9x + 10 . solve by factoring area model (show work)

Mathematics

1 answer:

Anastaziya [24]3 years ago

6 0

Step-by-step explanation:

2x²_4x_5x+10

2x(x-2)-5(x-2)

(2x-5)(x-2)

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Pam has 228 ounces of lemonade. She pours the lemonade into

Virty [35]

Answer:

4 ounces

Step-by-step explanation:

If you divide 228 by 8, you will get 28.5. The 0.5 into a fraction would be 1/2. Half of 8 would be 4. In the end, there should be 28 full 8-ounce cups and one cup with 4 ounces.

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3 years ago

James is putting a brick border around his circular pool. The bricks are 1 foot in length. How many bricks does James need to bu

oee [108]

Answer: 6.28 feet

Step-by-step explanation:

We will solve this question using the perimeter of a circle. The perimeter of a circle is given as:

= 2πr

= 2 × 3.14 × 1

= 6.28

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3 years ago

Find the pattern rule or the following numerical pattern:1,3,11,43

vfiekz [6]

Answer:

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3 years ago

Over the past decade, the mean number of hacking attacks experienced by members of the Information Systems Security Association

fredd [130]

Answer:

$P(X>600)=P(\frac{X-\mu}{\sigma}>\frac{600-\mu}{\sigma})=P(Z>\frac{600-510}{14.28})=P(z>6.302)$

And we can find this probability using the complement rule and the normal standard distribution and we got:

$P(z>6.302)=1-P(z$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the number of attacks of a population, and for this case we know the distribution for X is given by:

$X \sim N(510,14.28)$

Where $\mu=510$ and $\sigma=14.28$

We are interested on this probability

$P(X>600)$

And the best way to solve this problem is using the normal standard distribution and the z score given by:

$z=\frac{x-\mu}{\sigma}$

If we apply this formula to our probability we got this:

$P(X>600)=P(\frac{X-\mu}{\sigma}>\frac{600-\mu}{\sigma})=P(Z>\frac{600-510}{14.28})=P(z>6.302)$

And we can find this probability using the complement rule and the normal standard distribution and we got:

$P(z>6.302)=1-P(z$

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3 years ago

Sami cuts out a rectangle that has a perimeter of 48 inches and a length of 13 inches.

ddd [48]

Answer:

Width is 11 inches

Step-by-step explanation:

I am not sure what the question is. I think you might be looking for the width length. The perimeter is the distance around a rectangle. If the whole distance around is 48. We have 2 lengths and 2 widths. They tell us that the length is 13. We have two lengths so the lengths add up to 26. We can subtract that from 48 and that leaves us with 22 (48-26) This is the total for the 2 widths. Since the 2 widths are the same length we divide that number by 2 to get 11.

11 + 11+ 13 + 13 = 48

4 0

2 years ago

2X^2 - 9x + 10 . solve by factoring area model (show work)​

2X^2 - 9x + 10 . solve by factoring area model (show work)