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3 years ago

Dua buah dadu dilambungkan bersama-sama satu kali . Peluang muncul mata dadu berjumlah 5 adalah

Mathematics

1 answer:

Snezhnost [94]3 years ago

5 0

[2,3],[3,2],[1,4],[4,1]

= $\frac{4}{36}$
= $\frac{1}{9}$ <u />

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Suppose compact fluorescent light bulbs last, on average, 11,500 hours. The distribution is normal and the standard deviation is

juin [17]

Answer:

2.275%

Step-by-step explanation:

The first thing to do here is to calculate the z-score

Mathematically;

z-score = (x-mean)/SD

from the question, x = 12,300 hours , mean = 11,500 hours while Standard deviation(SD) = 400 hours

Plugging the values we have;

z-score = (12,300-11,500)/400 = 800/400 = 2

Now, we want to calculate P(z ≤ 2)

This is so because we are calculating within a particular value

To calculate this, we use the z-score table.

Mathematically;

P(z ≤ 2) = 1 - P(z > 2) = 1 - 0.97725 = 0.02275

To percentage = 2.275%

6 0

3 years ago

Andy is hanging wallpaper in his kitchen. He is able to cover of the walls in the room using 6 rolls of wallpaper. What is the n

Alchen [17]

Answer: Andy covers all the walls of his kitchen using 6 rolls of a wallpaper.

To Find:

Number of rolls used per wall.

Solution:

Since, we know that the shape of a kitchen is a cuboid.

And a cuboid has total 6 faces, with 4 walls, one roof and one floor.

So, total number of walls in Andy's kitchen = 4

Now, it is given that he uses 6 rolls of wallpaper to cover 4 walls completely.

In order to find the number of rolls used per wall, we'll have to divide the total number of rolls used with the total number of walls.

Number of rolls used per wall =

So, 1.5 rolls are used to cover one wall.

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

Slope = 2; (-1,4)<br><br> Gghhhgggggghgehwjwjwjwjwjwjw

krok68 [10]

The slope intercept form is given as y = 2x + 6

The general expression for slope intercept form is given as:

y = mx + c

where, m = slope

c = intercept

The formula for slope intercept form when we have been given the coordinates of a point and slope is given as :

$(y-y_{1}) = m(x-x_{1})$ (1)

where ( $x_{1} , y_{1})$ = the coordinates of a point

m = slope of the line

putting the required values in equation (1) we get

(y - 4) = 2(x- (-1))

(y - 4) = 2(x+1) [As (-)*(-) = +]

y - 4 = 2x + 2

y = 2x + 2 + 4

y = 2x + 6

Thus the slope intercept form is y = 2x + 6

Learn more about slope intercept form here : brainly.com/question/19440459

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8 0

1 year ago

8 4/5 - 5 1/10 <br> Please Help

Romashka-Z-Leto [24]

Answer:

my g get a fraction calculator

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Can someone pleaseeee help and if you’re correct i’ll give brainliest

Rama09 [41]

Answer:

2,827.43

Step-by-step explanation:

4 0

2 years ago