Two numerical patterns are shown below:

Mathematics

1 answer:

ddd [48]2 years ago

6 0

The answer is C because for the first number 12 half of 12 is 6 half of 24 is 12 so yea it’s c

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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)

5 0

3 years ago

Help me w this ty! lolllisndndnd

RoseWind [281]

Square root of 4 is 2
Square root of 9 is 3
7 is between 4 and 9, so its square root is somewhere between 2 and 3, which means the correct answer is between P and Q

8 0

3 years ago

Khianna wants to make a batch of her Grandma chocolate chip cookies from a friend. The recipe is shown on the recipe card below

romanna [79]

Poor <span>Khianna. Let's help her out.

For the original recipe she needs </span> $1 \frac 1 2 = \frac 3 2$ cups of brown sugar but only has $1 \frac 1 8 = \frac 9 8 .$ So the fraction of the brown sugar she has is

$\dfrac{ \frac{9}{8} }{\frac 3 2} = \frac 9 8 \times \frac 2 3 = \frac 3 4$

She has to scale everything by a factor of $\frac 3 4$

I won't multiply everything by 3/4 for you. 2 cups butter becomes 1 and a half cups butter, 1 tsp vanilla becomes 3/4 tsp, etc.

8 0

3 years ago

Is 6.31 repeating rational or irrational

leonid [27]

6.31 is a rational number.

4 0

3 years ago

6. An integer Pis two thirds of another and their difference is 10. Find the two integers. an integer p is 2/3 of another and th

I am Lyosha [343]

Answer:

20, 30

Step-by-step explanation:

let the intergers be x and y

x = 2/3y

from this eqn, we know that y is larger.

hence, y-x=10

y-2/3y=10

1/3y=10

y=30

x=2/3y =2/3(30) = 20

8 0

3 years ago