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2 years ago

Examine the two-step equation.

Mathematics

1 answer:

Alona [7]2 years ago

8 0

Answer:

subtraction property of equality, sorry if im wrong i tried :(

Step-by-step explanation:

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Find the function rule<br> X= -2,-1,0,1,2<br> Y= 9,4,-1,-6,-11

anygoal [31]

Answer:

The function rule for x is +1 and y is -5

Step-by-step explanation:

The function rule is basically the change for the set of numbers, like how x = 1, 2, 3, the function rule is +1, it's just the rate of change for the set of numbers.

6 0

3 years ago

Read 2 more answers

What is the probability of the following, (for each answer, enter an exact number)

Shalnov [3]

Answer:

Probability of certain event P(E) = 1

Step-by-step explanation:

An event or program A that is likely to occur has a probability of 1, which indicates that there will always be an event or a program.

Probability of certain event P(E) = 1

8 0

3 years ago

Last year, a person wrote 126 checks. Let the random variable x represent the number of checks he wrote in one day, and assume

Arisa [49]

Answer: The mean number of checks written per day $=0.3452$

Standard deviation $=0.5875$

Variance $=0.3452$

Step-by-step explanation:

Given : The total number of checks wrote by person in a year = 126

Assume that the year is not a leap year.

Then 1 year = 365 days

Let the random variable x represent the number of checks he wrote in one day.

Then , the mean number of checks wrote by person each days id=s given by :-

$\lambda=\dfrac{126}{365}\approx0.3452$

Since , the distribution is Poisson distribution , then the variance must equal to the mean value i.e. $\sigma^2=\lambda=0.3452$

Standard deviation : $\sigma=\sqrt{0.3452}=0.5875372328\approx0.5875$

6 0

3 years ago

Show by substitution whether the number r is a solution of the corresponding quadratic equation.

Stels [109]

Answer:

It's choice B.

Step-by-step explanation:

When r= -11,

x^2 + 8x - 33 = (-11)^2 - 88 - 33

= 121 - 88 - 33

= 0

- so x = -11 gives a zero value and is a solution to the equation.

3 0

2 years ago

Plz help i will mark you branlyest also plz answer both questions

Margaret [11]

Answer:

D(1, -2)

E(3, -4)

4 0

3 years ago