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-Dominant- [34]

3 years ago

12

This is confusing. Can someone please explain it to me?

1 answer:

morpeh [17]3 years ago

8 0

First, graph 3,-5 [RED]

then, reverse the x coordinate {3} (it is now at -3,-5) [BLUE]

next, move the point 6 to the right and 7 to the left (it is now at 3,2) [GREEN]

then, reverse the x coordinate {3}<span> (it is now at -3,2) [ORANGE]
</span>
finally, connect the dots.

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A fair number cube has faces numbered from 1 to 6. When the number cube is rolled, the theoretical probability of it landing on

Y_Kistochka [10]

<h3>Answer: 2/3</h3>

Explanation:

The theoretical probability of landing on a multiple of three is 1/3

So the theoretical probability of not landing on a multiple of three is 1-(1/3) = 3/3-1/3 = (3-1)/3 = 2/3

We can think of 1/3 to mean "1 out of 3 times", while 2/3 means "2 out of 3 times".

5 0

3 years ago

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Which equation(s)

aleksandrvk [35]

Answer:

C) y = 12 x Represents the proportional relationship.

Step-by-step explanation:

Two quantities P and Q are said to be proportional if and only if:

$P \propto Q \implies P = k Y$

Here: K = Proportionality Constant

Now, here the given expression are:

$1. y = 7 x^2\\\implies y \neq kx$

So, y is NOT PROPORTIONAL to x.

$2. y = 2 + 3x\\\implies y \neq kx$

So, y is NOT PROPORTIONAL to x.

$3. y = 12 x\\\implies y = kx, k = 12$

So, y is PROPORTIONAL to x.

$2. y = 5 - x\\\implies y \neq kx$

So, y is NOT PROPORTIONAL to x.

5 0

3 years ago

A normal distribution has a mean 20 and standard deviation 5. What is the z score that corresponds to the value x=222

sashaice [31]

Answer: The z score that corresponds to the value x=22 is 0.4 .

Step-by-step explanation:

Given : A normal distribution has a mean 20 and standard deviation 5.

i.e. $\mu=20$

$\sigma=5$

Let x be the random selected variable.

We know that to find the z-score corresponds to the value x is given by :-

$z=\dfrac{x-\mu}{\sigma}$

For x = 22, we have

$z=\dfrac{22-20}{5}=\dfrac{2}{5}\\\\\Rightarrow\ z=0.4$

Hence, the z score that corresponds to the value x=22 is 0.4

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3 years ago

Really need help pls I will mark you as brainlist ✨✨

Bumek [7]

I believe it is A correct me if I’m wrong

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3 years ago

(-3x2 – 9x + 5) – (-2x2 - 4x + 7)

Elina [12.6K]

-5x^2-13x-2
Hope this helps!

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3 years ago

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