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3 years ago

What is the domain of the function y=^3 square root x

1 answer:

3 0

The domain of the function:y = 3 √ ( 6 x + 42 )6 x + 42 ≥ 06 x ≥ - 42x ≥ - 42 : 6x ≥ - 7Answer:The domain is D ) x ≥ - 7

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What is the answer to this question

balu736 [363]

Answer:

(-1,-5/3)

Step-by-step explanation:

By substituting -1 for x into the equation and solving for y, the answer is -5/3 in which shows that (-1,-5/3) is a solution.

6 0

3 years ago

Does anyone know what -23= 13w+2w+22 is plz help!

AlladinOne [14]

Answer:

w = -3

Step-by-step explanation:

-23 = 13w + 2w + 22

Combine like terms (add 13w and 2w and subtract 22 from both sides)

-45 = 15w

Divide both sides by 15

w = -3

4 0

3 years ago

A sociologist randomly selects single adults for different groups of three, and the random variable x is the number in the group

Bas_tet [7]

Answer:

This data is not a probability distribution

The reason sum of the probabilities is not equal

∑ P(X=x) ≠ 1

Step-by-step explanation:

Explanation:-

Given data

x 0 1 2 3

p(x) 0.091 0.334 0.408 0.166

Discrete distribution :-

Probability distribution of a random variable is the set of its possible values together with their respective probabilities. Suppose X is a discrete random variable with possible outcomes (values) x₁ , x₂ , x₃ ,......... The probability of each possible outcome

$p_{i} = P(x=x_{i}) = p(x_{i}) for I= 1,2,3......$

If the numbers $p(x_{i}) , I =1 ,2,3,.....$ satisfy the two conditions

i) $p(x_{i}) \geq 0 for all values of i$

ii) ∑P(X=x) =1

Given data condition(i) satisfied $p(x_{i}) \geq 0 for all values of i$

but the condition (ii) is not satisfied

0.091+0.334+ 0.408+ 0.166 = 0.999

sum off all probabilities is not equal to one

Conclusion:-

The given data is not probability distribution

6 0

4 years ago

It takes Andrew 720720720 seconds to take a shower. He spends an additional 420420420 seconds eating breakfast. How many minutes

Brilliant_brown [7]

Answer: 19 minutes

Step-by-step explanation:

Here is the complete question:

takes Andrew 720 seconds to take a shower. He spends an additional 420 seconds eating breakfast.

How many minutes does it take Andrew to take a shower and eat breakfast?

From the question, we are told that Andrew spends 720 seconds to take a shower and also spends an additional 420 seconds eating breakfast. The total time spent by Andrew will be:

= 720 seconds + 420 seconds

= 1140 seconds

We will then convert 1140 seconds to minutes. We should note that 60 seconds = 1 minute. Therefore,

1140 seconds = 1140/60

= 19 minutes

Andrew uses 19 minutes to take a shower and eat breakfast.

7 0

4 years ago

5(a−1)−15=3(a+2)+4 a= ?

Alla [95]

Answer:

a = 15

Step-by-step explanation:

screenshots below should explain the answer :)

6 0

3 years ago