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Leno4ka [110]
3 years ago
9

PLS HELP AND EXPLAIN HOW TO DO IT ASWELL ILL MARK YOU BRAINLIEST ​

Mathematics
2 answers:
ValentinkaMS [17]3 years ago
6 0

Answer:

Step-by-step explanation:

Margarita [4]3 years ago
4 0

Answer:

251.33 = 251

Step-by-step explanation:

V= πr²h = π·2²·20 ≈ 251.32741 = 251.33

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The latest online craze is a new game, Khan on Seven. You get
aniked [119]

Answer:

The required inequality is 50w+100\geq 18000

Step-by-step explanation:

Consider the provided information.

You get  100 points for playing the game. In addition, you get  50 points for each seven-letter word you make with the ten letters you receive.

Let w represents a seven letter word which Sal will need to make to break the record.

She gets 100 points for playing the game and 50 points for each seven-letter

Therefore the total points earned is: 50w+100

Sal wants to break the record, and she needs 18,000 points or more.

Thus, the required inequality will be: 50w+100\geq 18000

Hence, the required inequality is 50w+100\geq 18000

3 0
3 years ago
Complete the table by writing the fraction as a decimal and as a percent
aniked [119]

Answer:

Decimal = 0.6

Percentage = 60%

Step-by-step explanation:

Let's simplify the fraction.

\frac{120}{200}  =  \frac{60}{100}  = 0.6

Hence the Decimal is 0.6

To express 120/200 in percentage , we have to multiply the fraction with 100.

\frac{120}{200}  \times 100 =  \frac{120}{2}  = 60\%

Hence the percentage value is 60%

7 0
3 years ago
Find the volume of the composite figure formed by a hemisphere with the radius
LekaFEV [45]

Answer:

8209.44

Step-by-step explanation:

CUBE: 20x20x20=8000

HEMISPHERE=2/3\pir²=

2/3\pi(10)²=209.44

8000+209.44=8209.44

5 0
3 years ago
A machine fills containers with a particular product. Assume the filling weights are normally distributed with a variance of 0.1
Ghella [55]

Answer:

z=-0.674

And if we solve for \mu we got

\mu=12 +0.674*0.4=12.270

So then the mean is 'mu = 12.270 for this case.

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

X \sim N(\mu,\sqrt{0.16}= 0.4)  

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

P(X>12)=0.85   (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 0.25 of the area on the left and 0.85 of the area on the right it's z=-0.674. On this case P(Z<-0.674)=0.25 and P(z>-0.674)=0.85

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=-0.674

And if we solve for \mu we got

\mu=12 +0.674*0.4=12.270

So then the mean is 'mu = 12.270 for this case.

8 0
3 years ago
One hundred clothing stores go out of business. This will
crimeas [40]

Answer:

A increase, because less stores means more people going to the other ones, which means more money for the owners, which means if they raise the proces, people still need cloths sothey will still buy

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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