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3 years ago

Y=-3(x-5)^2 identify the vertex of the quadratic function (Write it as a point)

1 answer:

3 0

To identify the vertex you must know the h and k.

In your function, h=5 and since there is no k, k=0

If the vertex is (h,k),
The vertex of your quadratic function is (5,0)

I hope this helps you :)

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Which number can be multiplied to a rational number to explain that the product of a rational number and an irrational number is

liraira [26]

Answer:

What are the answer choices?

Step-by-step explanation:

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3 years ago

The amount of time people spend exercising in a given week follows a normal distribution with a mean of 3.8 hours per week and a

Travka [436]

Answer:

i and iii) In the figure attached part a we have the illustration for the area required for the probability of less than 2 hours and in b the illustration for the probability that X would be between 2 and 4

ii) $P(X$

And using the normal standard table or excel we got:

$P(z$

iv) $P(2$

And we can find the probability with the following difference and usint the normal standard distirbution or excel and we got:

$P(-2.25$

Step-by-step explanation:

Let X the random variable that represent amount of time people spend exercising in a given week, and for this case we know the distribution for X is given by:

$X \sim N(3.8,0.8)$

Where $\mu=3.8$ and $\sigma=0.8$

Part i and iii

In the figure attached part a we have the illustration for the area required for the probability of less than 2 hours and in b the illustration for the probability that X would be between 2 and 4

Part ii

We are interested on this probability:

$P(X$

We can use the z score formula given by:

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

Using this formula we have:

$P(X$

And using the normal standard table or excel we got:

$P(z$

Part iv

We want this probability:

$P(2$

Using the z score formula we got:

$P(2$

And we can find the probability with the following difference and usint the normal standard distirbution or excel and we got:

$P(-2.25$

3 0

4 years ago

What is the volume of a right circular cone with a diameter of 21 centimeters and a height of 87 centimeters? Use 3.14 as an app

Sindrei [870]

The volume of the cone will be given by:
Volume=1/3πr^2h
therefore the volume of our cone will be:
π=3.14
h=87
r=21/2
Volume=1/3*3.14*(21/2)^2*87
=10,039.365 cm^2

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3 years ago

Just 13 a and b please and thank you

ehidna [41]

A)1.625m and b I can't read

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3 years ago

Which of the following transformations will always produce a congruent figure?

WITCHER [35]

Answer: A. Dilation

Step-by-step explanation: The dilation is a even number

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3 years ago