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Serga [27]
3 years ago
13

What's the value of X?

Mathematics
2 answers:
rjkz [21]3 years ago
8 0

Answer:

<u>D</u>

Step-by-step explanation:

58+35= 93

180-93= 87

A triangle is always 180

you first add the angles: 58+35= 93

Then subtract from 180 to get the angle: 180-93= 87

a straight line is always 180 degrees

angle B plus what equals X. 87 + ? = 180 (93)

so it's D

elena-14-01-66 [18.8K]3 years ago
3 0

Answer:

a) x=93

Step-by-step explanation:


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KiRa [710]

Answer:

-30/7 = x

Step-by-step explanation:

im guessing u mean (3x+5)/(2x+7) = 5

3x+5 = 5(2x+7)

3x+5=10x+35

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3 years ago
A jar contains 6 blue, 4 red, and 2 green marbles. What is the probability that three blue marbles are drawn with out replacemen
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Answer:  The required probability is 9.09%.

Step-by-step explanation:  Given that a jar contains 6 blue, 4 red, and 2 green marbles.

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After drawing one blue marble, we are left with total 11 marbles. And after drawing the second blue marble, we are left with total 10 marbles.

Therefore, the probability of drawing three blue marbles without replacement is given by

p\\\\\\=\dfrac{^6C_1}{^{12}C_1}\times\dfrac{5C_1}{^{11}C_1}\times\dfrac{^4C_1}{^{10}C_1}\\\\\\=\dfrac{6}{12}\times\dfrac{5}{11}\times\dfrac{4}{10}\\\\\\=\dfrac{1}{11}\\\\\\=\dfrac{1}{11}\times100\%\\\\=9.09\%.

Thus, the required probability is 9.09%.

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ivann1987 [24]

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Step-by-step explanation:

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