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3 years ago

Answer this right now please

Mathematics

1 answer:

lakkis [162]3 years ago

4 0

I would say it is the 2 chose!
Please tell me if I am wrong!"

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Please help me ASAPP

swat32

Answer:

I believe the answer is, A.

Explanation:

Ordered pairs are classified as a function when none of the x’s in the ordered pairs match.

Like in b, a pair has 3.
And in c, two pairs have 1 and 3.

7 0

3 years ago

(Help needed ASAP I’m confused ) Solve the equation by using the distributive property first

Misha Larkins [42]

I got the answer. Use Brainly

4 0

3 years ago

Read 2 more answers

If outliers are discarded, then the retirement savings by residents of Econistan is normally distributed with a mean of $100,000

zavuch27 [327]

Answer:

$P(X>117000)=P(\frac{X-\mu}{\sigma}>\frac{117000-\mu}{\sigma})=P(Z>\frac{117000-100000}{20000})=P(z>0.85)$

And we can find this probability using the complement rule and the normal standard table or excel:

$P(z>0.85)=1-P(z$

The firgure attached illustrate the problem

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the retirement savings of a population, and for this case we know the distribution for X is given by:

$X \sim N(100000,20000)$

Where $\mu=100000$ and $\sigma=20000$

We are interested on this probability

$P(X>117000)$

And the best way to solve this problem is using the normal standard distribution and the z score given by:

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

If we apply this formula to our probability we got this:

$P(X>117000)=P(\frac{X-\mu}{\sigma}>\frac{117000-\mu}{\sigma})=P(Z>\frac{117000-100000}{20000})=P(z>0.85)$

And we can find this probability using the complement rule and the normal standard table or excel:

$P(z>0.85)=1-P(z$

The firgure attached illustrate the problem

7 0

3 years ago

It costs $4.25 to buy 3/4 lb of sour belts.

Klio2033 [76]

Answer:

None of the above.

Step-by-step explanation:

Given equation:

4.25 * 3.5

The cost of 3.5 lb of sour belts:

$14.875.

Simplify:

14 7/8

6 0

2 years ago

You have 1,000,000 number cubes, each measuring one inch on a side. if you layered the cubes to make one big cube what would be

azamat

Answer:

100 x 100 x 100 number cubes

Step-by-step explanation:

It's basically a volume problem. The question is asking if you made a big cube filled with smaller cubes , specifically 1,000,000 of them, what are the dimensions of this big cube. Or in other words the volume is 1,000,000. Now how do we find the volume of a cube? length times width times height, and witht he cubes each of those are the same so we can call them all x.

Now we just set up the equation where we have the equation whatever one side is times itself three times, (or x cubed) it will equal 1,000,000 or x^3=1,000,000,000. Now you just take the cube root of 1,000,000 which gets us 100. so the length, width and height are 100 small cubes.

3 0

3 years ago