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ozzi
3 years ago
9

Pls help Show workings

Mathematics
1 answer:
astraxan [27]3 years ago
4 0

Answer:

i guess 3 one hope it's right for u

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1. What is the measure of angle x?<br> 2. What is the measure of angle x?
MrRa [10]

1. These angles are complementary, which means that they add up to 90 degrees.

x + 73 = 90

x = 17 degrees

2. These angles are supplementary, which means that they add up to 180 degrees.

x + 118 = 180

x = 62 degrees

Hope this helps!! :)

4 0
3 years ago
Two faces of a six-sided die are painted red, two are painted blue, and two are painted yellow. The die is rolled three times, a
Keith_Richards [23]

Answer:

(a) 4/9

(b) 19/27

Step-by-step explanation:

The probability of each die turning up red or not turning red are:

P(R) =\frac{2}{6}= \frac{1}{3}\\P(O) =\frac{4}{6}= \frac{2}{3}

(a). Exactly one face up is red.

The odds of only the first die being red are:

P(A=R) =\frac{1}{3} *\frac{2}{3}* \frac{2}{3} \\P(1=R) =\frac{4}{27}

The same odds are valid for only the second or only the third die being red. Therefore, the probability that exactly one die turns up red is:

P(R=1) = 3*\frac{4}{27}\\P(R=1) = \frac{4}{9}

(b). At least one face up is red.

The probability that at least one die turns up red is the sum of the probabilities of exactly one (found in the previous item), two or all dice turning up red.

Following the same logic as in the previous item, the probability that exactly two dice turn up red is:

P(R=2) = 3*(\frac{1}{3}*\frac{1}{3}*\frac{2}{3})\\P(R=2) = \frac{2}{9}

The probability that all die turn up red is:

P(R=3) = \frac{1}{3}*\frac{1}{3}*\frac{1}{3}\\P(R=3)=\frac{1}{27}

Thus, the probability that at least one die turns up red is:

P= P(R=1)+P(R=2)+P(R=3) = \frac{4}{9}+\frac{2}{9}+\frac{1}{27}\\P=\frac{19}{27}

4 0
3 years ago
I neeeeeeed help plz
yaroslaw [1]

Answer:

i have the same question some one help

Step-by-step explanation:

8 0
2 years ago
Need help with another question please
hoa [83]
The answer for this is m
=
5.436564
v
2
?
3 0
3 years ago
Robert needs to cut four shelves from a board that is 2.5 meters long. The second shelf is 18 centimeters longer than twice the
USPshnik [31]
   1st shelf: 48cm
 2nd shelf: 114cm
   3rd shelf: 36cm
   4th shelf: 52cm
Total length: 250cm or 2.5m 
7 0
3 years ago
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