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3 years ago

Tina's favorite shade of teal is made with

Mathematics

2 answers:

natali 33 [55]3 years ago

6 0

Choice A (which is that Tina’s favorite shade is more blue than Tyler’s) is correct

Leokris [45]3 years ago

5 0

Answer:

(Choice A) Tina's favorite shade is bluer than Tyler's.

Step-by-step explanation:

$\text{Tina's ratio} = \dfrac{\text{7 blue}}{\text{5 green}}\\\text{Tyler's ratio} = \dfrac{\text{5 blue}}{\text{7 green}}$

If they each use 12 oz of paint, Tina uses 7 oz of blue and Tyler uses 5 oz.

Tina's paint is bluer than Tyler's.

The colors below are Tina's teal, the "official" teal, and Tyler's teal.

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3 years ago

A bucket always contains two balls. Ball colors are red and blue. Each stage in a process consists of two steps: selection and r

KonstantinChe [14]

Answer:

Probability that the fifth ball selected is red = 0.705

Step-by-step explanation:

Let

$X_{n}$ = Number of red balls after the 4th turn

⇒ $X_{n}$ ∈ { 0, 1, 2 }

Then,

P = $\left[\begin{array}{ccc}0.8&0.2&0\\0.1&0.8&0.1\\0&0.2&0.8\end{array}\right]$

⇒ $P^{4} = \left[\begin{array}{ccc}0.487&0.435&0.776\\0.218&0.565&0.218\\0.776&0.435&0.487\end{array}\right]$

Now,

P(5th ball is red | $X_{0}$ = 2 ) = 0. $P^{4} _{20}$ + $\frac{1}{2}P^{4} _{21} + 1. P^{4} _{22}$

= $\frac{1}{2} (0.4352) + 1. (0.4872) = 0.2176 + 0.4872$

= 0.705

∴ we get

Probability that the fifth ball selected is red = 0.705

6 0

2 years ago