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KengaRu [80]
3 years ago
8

Which composite figure has the greatest surface area

Mathematics
2 answers:
MaRussiya [10]3 years ago
8 0

Answer:

This is from Edgenunity 2020

Step-by-step explanation:

For those finding a answer to this, it's the last option or D the square that is 2 by 2 by 2

Bumek [7]3 years ago
6 0

Answer:

sphere...

Step-by-step explanation:

because...

just like if we increase the no. of faces of composite figures ...

surface area is increased ...

so no. of faces is infinite in sphere...

logically sphere have the greatest surface area

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7th grade Math help please :)
Ann [662]

Answer:

false

true

true

true

true

false

true

false

false

answers r in order of pictures

Step-by-step explanation:

5 0
2 years ago
The average THC content of marijuana sold on the street is 9.3%. Suppose the THC content is normally distributed with standard d
velikii [3]

Answer:

a) X \sim N(9.3,1)  

b) P(X>9.2)=P(\frac{X-\mu}{\sigma}>\frac{9.2-\mu}{\sigma})=P(Z>\frac{9.2-9.3}{1})=1-P(Z

c) The value of height that separates the bottom 75% of data from the top 25% is 9.9745.  

Step-by-step explanation:

1) 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".  

2) Part a

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

X \sim N(9.3,1)  

Where \mu=9.3 and \sigma=1

3) Part b

We are interested on this probability

P(X>9.2)

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>9.2)=P(\frac{X-\mu}{\sigma}>\frac{9.2-\mu}{\sigma})=P(Z>\frac{9.2-9.3}{1})=1-P(Z

4) Part c

For this part we want to find a value a, such that we satisfy this condition:

P(X>a)=0.25   (a)

P(X   (b)

Both conditions are equivalent on this case. We can use the z score again in order to find the value a.  

As we can see on the figure attached the z value that satisfy the condition with 0.75 of the area on the left and 0.25 of the area on the right it's z=0.6745. On this case P(Z<0.6745)=0.75 and P(z>0.6745)=0.25

If we use condition (b) from previous we have this:

P(X  

P(Z

But we know which value of z satisfy the previous equation so then we can do this:

z=0.6745

And if we solve for a we got

a=9.3 +1*0.6745=9.9745

So the value of height that separates the bottom 75% of data from the top 25% is 9.9745.  

8 0
3 years ago
-1/2x-3=4<br> Solve for x
sleet_krkn [62]
Answer:

x=-3.5

reason:

first, add 3 to both sides
this makes the equation -1/2x=7
then, divide both sides by -1/2
this will give you x=-3.5
3 0
3 years ago
Read 2 more answers
The water level in a lake was monitored and was noted to have changed −1 1/5 inches in one year. The next year it was noted to h
pychu [463]

Answer:

the answer is 5 1/9 inches per month (answer)

Step-by-step explanation:

4 0
3 years ago
Area Pls Tyyyyyyyyyyyyyyyyyyyyyyyyy
Serjik [45]

Answer:

240 meters^2

Step-by-step explanation:

Area of a triangle is 1/2b*h. (b=base, h=height). To solve you plug in the values 30 as b and 16 as h and then multiply to get 240.

3 0
3 years ago
Read 2 more answers
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