2 years ago

Help help help math math math

Mathematics

2 answers:

tamaranim1 [39]2 years ago

8 0

Answer:

yes this right cuz ye or nah?

Step-by-step explanation:

yes cuz 0 1 2 3 4 5 6 7 8 9 are the numbers

Oduvanchick [21]2 years ago

5 0

Answer: [?] is 6

Step-by-step explanation:

x=5

so, 2x=10

10-4 is 6

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raketka [301]

Answer:

yes # 7

Step-by-step explanation:

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3 years ago

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A worker receives ₹700 for 8 hours of a work a day. How much should he receive for 2 hours?

melomori [17]

Answer:

175 is the answer

Step-by-step explanation:

$700 = 8$

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3 years ago

A water well is to be drilled in the desert where the soil is either rock, clay or sand. The probability of rock P(R)equals=0.

GaryK [48]

The tree diagram for the probability is shown below

P(Clay|Positive) is read 'Probability of Clay given the result is Positive'.

This is a case of conditional probability.

The formula for conditional probability is given as
P(Clay|Positive) = P(Clay∩Positive) ÷ P(Positive)

P(Clay∩Positive) = 0.21×0.48 = 0.1008

P(Positive) = P(Rock∩Positive) + P(Clay∩Positive) + P(Sand∩Positive)
P(Positive) = (0.53×0.53) + (0.21×0.48) + (0.26×0.75)
P(Positive) = 0.2809 + 0.1008 + 0.195
P(Positive) = 0.5767

Hence,
P(Clay|Positive) = 0.1008÷0.5767 = 0.175 (rounded to 3 decimal place)