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bezimeni [28]
3 years ago
5

The table shows the amounts of onions and tomatoes in different-sized batches of a salsa recipe.

Mathematics
1 answer:
Irina-Kira [14]3 years ago
4 0

Answer:

Step-by-step explanation: That's not the answer

????

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Evaluate \dfrac{3}{2}+(-k)+(-2)
Dimas [21]

As I understand, we need to evaluate the given rational expression, we will get that the evaluated expression is equal to - 1/10

<h3>Evaluating expressions:</h3>

Evaluating an expression just means that we need to replace the variable in the expression for a given value, here we have the expression:

\frac{3}{2} + (-k) + (-2)

And we want to evaluate it in:

k = -\frac{2}{5}

So we just need to replace k by that value in the above expression, we will get:

\frac{3}{2} + (-(-\frac{2}{5} )) + (-2)

Now we can just solve this:

\frac{3}{2} + (-(-\frac{2}{5} )) + (-2)\\\\\frac{3}{2} + \frac{2}{5}  + (-2)\\\\\frac{15}{10} + \frac{4}{10}  + (-2) = \frac{19}{10} - \frac{20}{10}= -\frac{1}{10}

If you want to learn more about evaluating expressions, you can read:

brainly.com/question/4344214

4 0
2 years ago
What times -1/2 x what = -20?
Radda [10]

Answer:

40

Step-by-step explanation:

Let the number be y

-1/2 × y = -20

y = -20 ÷ -1/2

y = 20 × 2

y = 40

6 0
2 years ago
Find the area of the square
butalik [34]

Answer:

13 units^2

Step-by-step explanation:

one side of the square =

AD^{2} = 2^{2} +3^{2}

AD^{2} =13

AD = \sqrt{13}

So area of square = Length * Length

= \sqrt{13}*

= 13

8 0
2 years ago
Read 2 more answers
For each given p, let ???? have a binomial distribution with parameters p and ????. Suppose that ???? is itself binomially distr
pshichka [43]

Answer:

See the proof below.

Step-by-step explanation:

Assuming this complete question: "For each given p, let Z have a binomial distribution with parameters p and N. Suppose that N is itself binomially distributed with parameters q and M. Formulate Z as a random sum and show that Z has a binomial distribution with parameters pq and M."

Solution to the problem

For this case we can assume that we have N independent variables X_i with the following distribution:

X_i Bin (1,p) = Be(p) bernoulli on this case with probability of success p, and all the N variables are independent distributed. We can define the random variable Z like this:

Z = \sum_{i=1}^N X_i

From the info given we know that N \sim Bin (M,q)

We need to proof that Z \sim Bin (M, pq) by the definition of binomial random variable then we need to show that:

E(Z) = Mpq

Var (Z) = Mpq(1-pq)

The deduction is based on the definition of independent random variables, we can do this:

E(Z) = E(N) E(X) = Mq (p)= Mpq

And for the variance of Z we can do this:

Var(Z)_ = E(N) Var(X) + Var (N) [E(X)]^2

Var(Z) =Mpq [p(1-p)] + Mq(1-q) p^2

And if we take common factor Mpq we got:

Var(Z) =Mpq [(1-p) + (1-q)p]= Mpq[1-p +p-pq]= Mpq[1-pq]

And as we can see then we can conclude that   Z \sim Bin (M, pq)

8 0
3 years ago
Im Giving Brainliest............. Someone Plzz Help?
Alekssandra [29.7K]

Answer:

For the first one 25.925%

The second is 23.333%

The third is 27.27%

Let me know if this helps!

6 0
2 years ago
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