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4 years ago

Help me plzzzzzzzzzz

Mathematics

2 answers:

AlekseyPX4 years ago

6 0

Answer:

Answer is D.

Step-by-step explanation:

Juli2301 [7.4K]4 years ago

6 0

Answer:

the answer is 361 ft^2

Step-by-step explanation:

what you do is find the total area of the deck:377

then the area of the hole:16

then subtract:377-16=361

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For two months nell feeds her cat diet chow brand cat food then for the next two months she feeds her cat kitty diet brand cat f

zavuch27 [327]

Diet chow brand because the cats was on it longer

8 0

3 years ago

Read 2 more answers

If the distribution is really N ( 5.43 , 0.54 ) , N(5.43,0.54), what proportion of observations would be less than 5.05 ? 5.05?

Ipatiy [6.2K]

Answer:

$P(X$

And we can use the following excel code to find the answer: "=NORM.DIST(-0.704,0,1,TRUE)"

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 of interest for a population, and for this case we know the distribution for X is given by:

$X \sim N(5.43,0.54)$

Where $\mu=5.43$ and $\sigma=0.54$

We are interested on this probability

$P(X$

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:

$P(X$

And we can find this probability on this way:

$P(Z$

And we can use the following excel code to find the answer: "=NORM.DIST(-0.704,0,1,TRUE)"

6 0

4 years ago

Under which operations are polynomials closed

Helga [31]

Addition,subtraction,and multiplication

6 0

3 years ago

Help me please !! Geometry

Hatshy [7]

Okay, so all the angles of the triangle will add up to 180

You know one side is 104 and the other two are equal to each other.

180-104= 76

76 is both of the angles together so divide it by two to get 38

X=38

:)

8 0

3 years ago

Please help and thank you

ziro4ka [17]

The LCD is x^2+3x+2 = (x+2)(x+1)
The goal is to get each fraction to have the denominator be equal to the LCD
Afterward we can add the fractions

x/(x^2+3x+2) + 3/(x+1)
x/((x+2)(x+1)) + 3/(x+1)
x/((x+2)(x+1)) + (3(x+2))/((x+2)(x+1))
(x+3(x+2))/((x+2)(x+1))
(x+3x+6)/(x^2+3x+2)
(4x+6)/(x^2+3x+2)

--------------------------------------------------

Final Answer: 4x+6

Note: you can factor 4x+6 to get 2(2x+3)

7 0

4 years ago

Help me plzzzzzzzzzz​

Help me plzzzzzzzzzz