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3 years ago

What are the dimensions of the quilt pattern of 7 1/2 and 2/3

Mathematics

1 answer:

Novosadov [1.4K]3 years ago

8 0

Sorry i am not sure about this one

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The sides of ∠A are tangent to circle k(O) with radius r. Find: r, if OA=14 dm, m∠A=90°.

Alex_Xolod [135]

Answer:

r = √98

Step-by-step explanation:

angle A and the diameter form an isosceles right triangle, with OA as the hypotenuse and r as the other sides. You can then make and solve an equation from the Pythagorean Theorem:

r^2 + r^2 = 14^2

2r^2 = 14^2

2r^2 = 196

r^2 = 98

r = √98

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SCORPION-xisa [38]

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Determine the geometric mean of 45 and 15

Alenkinab [10]

I believe 30 is the answer :)

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Y=x???need answers and an explanation

Lesechka [4]

Y= 2
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3 years ago

An oil company is drilling for oil at three sites. According to geological tests, the probabilities of

astra-53 [7]

Answer:

Step-by-step explanation:

Given

Probability of finding oil at site 1 is 0.30

Probability of finding oil at site 2 is 0.15

Probability of finding oil at site 3 is 0.20

Probability of Finding oil at all three sites

i.e. oil is present in all three sites simultaneously

$=0.3\times 0.15\times 0.20=0.009$

Probability of not finding oil at any of these sites $=(1-0.3)\cdot (1-0.15)\cdot (1-0.2)=0.476$

Complement of Finding oil at all three sites is equivalent to not finding the oil at all three sites

i.e. $A'\cap B'\cap C'$

Complement of not finding oil at any of the sites is equivalent to probability of finding oil at any of the given sites

$A\cup B' \cup C'$ or

$'\cup B \cup C'$ or

$A'\cup B' \cup C$

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3 years ago