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3 years ago

Not good at math can anyone help will appreciate it a lot thank you.

Mathematics

1 answer:

julsineya [31]3 years ago

7 0

I understand but it’s hard to explain in many ways... I would assume asking your teacher for help

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Each picture shows how a mapping, f, maps elements of a domain onto a range.

deff fn [24]

Answer:

Top left

Step-by-step explanation:

If an x value (domain) leads to more than one y-value (range), it is not a function. In other words, if each input value leads to only one output value, it is a function. It's still a function if the y-value leads to multiple x-values.

6 0

3 years ago

Find the volume of a sphere with the diameter of 4

givi [52]

$d=4 \Rightarrow r=2\\V=\dfrac{4}{3}\pi r^3\\
V=\dfrac{4}{3}\pi \cdot2^3\\
V=\dfrac{4}{3}\pi \cdot8\\
V=\dfrac{32}{3} \pi
$

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3 years ago

What are the two numbers with the sum of 1

Yuri [45]

Step-by-step explanation:

0+1 = 1

1/2+1/2= 1

-50 + 51= 1

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3 years ago

Charlie’s portfolio has an expected annual return at 10%, with an annual standard deviation at 12%. Assume his investment return

Deffense [45]

Answer:

There is a 34.13% probability that the actual return will be between the mean and one standard deviation above the mean.

Step-by-step explanation:

This is problem is solving using the Z-score table.

The Z-score of a measure measures how many standard deviations above/below the mean is a measure. Each Z-score has a pvalue, that represents the percentile of a measure.

What is the probability that the actual return will be between the mean and one standard deviation above the mean?

One measure above the mean is $Z = 1$

The mean is $Z = 0$

This means that this probability is the pvalue of $Z = 1$ subtracted by the pvalue of $Z = 0$ .

$Z = 1$ has a pvalue of 0.8413.

$Z = 0$ has a pvalue of 0.50.

This means that there is a 0.8413-0.50 = 0.3413 = 34.13% probability that the actual return will be between the mean and one standard deviation above the mean.

3 0

3 years ago

.Martin is an after-school math tutor. He noticed that 6 people still needed help and only Two-fifths of the tutoring session ti

Ugo [173]

Answer:

6/15 divided by 6

Step-by-step explanation:

$\frac{2}{5} / 6\\= \frac{6}{15} / 6\\$

4 0

2 years ago