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3 years ago

If f(5x) = f(5) + f(x), prove that f(5) = 0.

Mathematics

2 answers:

Agata [3.3K]3 years ago

7 0

Yeah that’s right 5(0)

lubasha [3.4K]3 years ago

6 0

5(0) is the correct answer

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Daniel wanted to know his approximate score on the final exam for his mathematics class. His professor hinted that his score was

Marizza181 [45]

Answer:

The raw score for his exam grade is 99.69.

Step-by-step explanation:

Given : The professor announced that the mean for the class final exam was 88 with a standard deviation of 7. Given Daniel's z score of 1.67.

To find : What is the raw score for his exam grade?

Solution :

The formula use to find the z-score is

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

Where, z=1.67 is the z-score

$\mu=88$ is the means

$\sigma=7$ is the standard deviation

x is the raw score for his exam grade

Substitute the values,

$1.67=\dfrac{x-88}{7}$

$1.67\times 7=x-88$

$11.69=x-88$

$x=88+11.69$

$x=99.69$

Therefore, the raw score for his exam grade is 99.69.

7 0

3 years ago

At Ice Cream Haven, 14 of the last 18 sundaes sold had nuts. What is the experimental probability that the next sundae sol...

Pepsi [2]

Answer:

7/9 or 2/9, depending on the question!

Step-by-step explanation:

Probability that next sundae has nuts is 14/18 = 7/9.

Probability that the next sundae does not have nuts = 2/9

3 0

3 years ago

1. The formula for the volume of a cone is

Andre45 [30]

Answer:

$r=\sqrt{\frac{3V}{\pi\ h}}$

Step-by-step explanation:

The volume of cone is given by:

$V=\frac{1}{3}\pi\ r^2\ h$

where $r$ is the radius of the base and $h$ is the height of the cone.

We need to solve for $r$

we have $V=\frac{1}{3}\ \pi\ r^2\ h$

Multiplying both sides by 3 to remove $\frac{1}{3}$

⇒ $3\times V=3\times \frac{1}{3}\ \pi\ r^2\ h$

⇒ $3V=\pi\ r^2\ h$

dividing both sides by $\pi\ h$

⇒ $\frac{3V}{\pi\ h}=\frac{\pi r^2 h}{\pi\ h}$

⇒ $\frac{3V}{\pi\ h}=r^2$

Taking square root both sides:

⇒ $\sqrt{\frac{3V}{\pi\ h}}=\sqrt{r^2}$

⇒ $\sqrt{\frac{3V}{\pi\ h}}=r$

∴ $r=\sqrt{\frac{3V}{\pi\ h}}$

3 0

3 years ago

Read 2 more answers

Factor a number, variable, or expression out of the polynomial shown below.

katen-ka-za [31]

Your answer is B.

Just take what is being multiplied by (10x-7) and put it together to get
(x+11)(10x-7)

Hope this helps :-)

8 0

3 years ago

Which graph has a slope of 4/5

Lana71 [14]

Answer: whichever graph that goes up 4 and over 5

Step-by-step explanation:

rise over run, 4 up, 5 right

to find it just look at two points on the line and count how many up and how many horizontal units there are between them :)

4 0

3 years ago

If f(5x) = f(5) + f(x), prove that f(5) = 0.​

If f(5x) = f(5) + f(x), prove that f(5) = 0.