All categories

3 years ago

Algebra 2 unit 5 please help

Mathematics

1 answer:

Digiron [165]3 years ago

7 0

You know the formula of discriminant

a b
c d
that means ad-bc
So <span>we have an equation
(-12)x3-(2f)x(-w</span>²)= 2k x 3- (-14)x(-81)
0r -36 +2fw²= 6k- 1134
And 2fw²-6k+ 1098=0
But I did not know what is variable here?

You might be interested in

9u²v and which term are like terms?

MaRussiya [10]

There are no like terms in 9u^2v because it is all one term and none of the variables are like one another.

4 0

3 years ago

Is the result of a-b a polynomial?

yuradex [85]

Answer:hhhhh

Step-by-step explanation:hhhh

4 0

3 years ago

Read 2 more answers

Maggie is practicing her penalty kicks for her upcoming soccer game. During the practice, she attempts 10 penalty kicks. If each

arlik [135]

Answer:

$P(X \geq 8)= P(X=8) +P(X=9) +P(X=10)$

And we can find the individual probabilities like this:

$P(X=8)=(10C8)(0.65)^0 (1-0.65)^{10-8}=0.176$

$P(X=9)=(10C9)(0.65)^1 (1-0.65)^{10-9}=0.072$

$P(X=10)=(10C10)(0.65)^2 (1-0.65)^{10-10}=0.013$

And adding we got:

$P(X \geq 8)= P(X=8) +P(X=9) +P(X=10)= 0.176+0.072+0.013=0.262$

Step-by-step explanation:

Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

Let X the random variable of interest, on this case we now that:

$X \sim Binom(n=10, p=0.65)$

The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$

Where (nCx) means combinatory and it's given by this formula:

$nCx=\frac{n!}{(n-x)! x!}$

Solution to the problem

For this case we want to find this probability:

$P(X \geq 8)= P(X=8) +P(X=9) +P(X=10)$

And we can find the individual probabilities like this:

$P(X=8)=(10C8)(0.65)^0 (1-0.65)^{10-8}=0.176$

$P(X=9)=(10C9)(0.65)^1 (1-0.65)^{10-9}=0.072$

$P(X=10)=(10C10)(0.65)^2 (1-0.65)^{10-10}=0.013$

And adding we got:

$P(X \geq 8)= P(X=8) +P(X=9) +P(X=10)= 0.176+0.072+0.013=0.262$

5 0

3 years ago

I NEED HELP

jeka94

B has more because 10/5 is 2 and 8/12 is less

4 0

3 years ago

Use the angle relationship in the figure below to solve for x. Assume that lines a and b are parallel and the given angles are g

Daniel [21]

9514 1404 393

Answer:

x = 5°

Step-by-step explanation:

The marked angles are "alternate exterior angles," hence congruent.

2x +90° = x +95°

x = 5° . . . . . . . . . . . . subtract (x+90°) from both sides

4 0

3 years ago