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AleksAgata [21]
2 years ago
9

Please help asap i will give brainliest

Mathematics
2 answers:
trapecia [35]2 years ago
7 0

Answer:

area is 20

Step-by-step explanation:

Nostrana [21]2 years ago
3 0

Answer:

20 units squared

Step-by-step explanation:

4(base) x 10(height) = 40

40 / 2 = 20

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HELP<br><br><br> How many pieces 3/7 of a foot each can I make out of 7/2 feet of rope?
AVprozaik [17]
Your answer is (8 1/6) hope it helps and have a great day!

4 0
2 years ago
Plz helplplpp this is due NOWWW
frez [133]

Answer:

Option 2

Step-by-step explanation:

1/4 is equal to .25 or 25/100

8 0
3 years ago
Read 2 more answers
A cone has a volume of 314 cubic millimeters and a height of 12 millimeters. What is its
Hoochie [10]

Answer:

5mm

Step-by-step explanation:

using the formula of volume of cone i.e. 1/3 ×πr²h

1/3 × πr²h = 314

or, r²= (314×3)/ (π×h)

or, r² = 25

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7 0
2 years ago
Help me now plz it do in 30 min
lapo4ka [179]

Answer:

For the first row, write 5(0)-1 = 0-1. y is equal to -1.

For the second row, write 5(1)-1 = 5-1. y is equal to 4.

For the third row, write 5(2)-1 = 10-1. y is equal to 9.

For the fourth row, w rite 5(3)-1 = 15-1. y is equal to 14.

Step-by-step explanation:

Hope this helps!

4 0
2 years ago
The distribution of the average amount of sleep per night gotten by college students is roughly bell-shaped with mean 412 minute
kirza4 [7]

Answer:

P(X

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

X \sim N(412,68)  

Where \mu=412 and \sigma=68

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 using the normal standard table or excel and we got:

P(z

4 0
3 years ago
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