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allsm [11]
2 years ago
5

Bạn dự định đi học thêm vào mùa hè này. Nếu đi học bạn sẽ không thể đi làm với thu nhập là 5 triệu đồng và không thể ở nhà nghỉ

ngơi. Học phí là 2 triệu, tiền mua giáo trình 300 ngàn, sinh hoạt phí là 1.5 triệu. Hãy xác định chi phí cơ hội của việc đi học thêm vào mùa hè này.
Mathematics
1 answer:
WARRIOR [948]2 years ago
6 0

Answer:

4 better inbox

Step-by-step explanation:

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The probability that Stu buys a sandwich is 0.5.
Marizza181 [45]

Answer:

P(S+B)=0.5*0.6=0.3

Step-by-step explanation:

Use the multiplication rule if the events are independent.

5 0
3 years ago
PQR is a right-angled triangle. PQ = 16 cm. PR = 8 cm. Calculate the length of
vlada-n [284]
SOLUTION:

PQR is a right-angle triangle.

Therefore, to solve this problem, we will use Pythagoras theorem which is only applicable to right-angle triangles.

Pythagoras theorem is as displayed below:

a^2 + b^2 = c^2

Where c = hypotenuse of right-angle triangle

Where a and b = other two sides of right-angle triangle

Now we will simply substitute the values from the problem into Pythagoras theorem in order to obtain the length of QR.

c = PQ = 16cm

a = PR = 8cm

b = QR = ?

a^2 + b^2 = c^2

( 8 )^2 + b^2 = ( 16 )^2

64 + b^2 = 256

b^2 = 256 - 64

b^2 = 192

b = square root of ( 192 )

b = 13.8564...

b = 13.86 ( to 2 decimal places )

FINAL ANSWER:

Therefore, the length of QR is 13.86 centimetres to 2 decimal places.

Hope this helps! :)
Have a lovely day! <3
8 0
3 years ago
What is 5x5x5x5 plz tell me
Llana [10]
5 times 5 times 5 times 5 is 20

So just count by 5

Hope this help
6 0
3 years ago
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REALLY NEED HELP PLEASE!!!
qwelly [4]

Answer:

Step-by-step explanation:

6 0
3 years ago
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The following proof has an error. Find the error and choose the correct replacement.
Dvinal [7]

Answer:

opposite sides of a parallel are congruent.

Step-by-step explanation:

the symbol between AB and DC stands for "equal to", not parallel. boom roasted. (don't hate me if I'm wrong)

8 0
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