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3 years ago

Which of the following is a way you can express a function?

Mathematics

1 answer:

lions [1.4K]3 years ago

4 0

Answer:

Step-by-step explanation:

you can express them in all the above form

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I need help with this pls

shtirl [24]

Answer:5

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

4.) The time X (minutes) for a lab assistant to prepare the equipment for a certain experiment is believed to have a uniform dis

Jet001 [13]

Answer:

$P(35-2 < X 35+2) = P(33< X< 37)= P(X$

And using the cumulative distribution function we got:

$P(35-2 < X 35+2) = P(33< X< 37)= P(X$

The probability that preparation is within 2 minutes of the mean time is 0.134

Step-by-step explanation:

For this case we define the following random variable X= (minutes) for a lab assistant to prepare the equipment for a certain experiment , and the distribution for X is given by:

$X \sim Unif (a= 20, b =50)$

The cumulative distribution function is given by:

$F(x) = \frac{x-a}{b-a} , a \leq X \leq b$

The expected value is given by:

$E(X) = \frac{a+b}{2} = \frac{20+50}{2}=35$

And we want to find the following probability:

$P(35-2 < X 35+2) = P(33< X< 37)$

And we can find this probability on this way:

$P(35-2 < X 35+2) = P(33< X< 37)= P(X$

And using the cumulative distribution function we got:

$P(35-2 < X 35+2) = P(33< X< 37)= P(X$

The probability that preparation is within 2 minutes of the mean time is 0.134

8 0

3 years ago

Solve the system of linear equations by graphing.<br> y=-x+4.<br> y= 2x – 8

drek231 [11]

Step-by-step explanation:

suppose,x=1,2 .so y=1+4=5,2+4=6...eq..(I)

and y=2×1-8=-6,y=2*×2-8=-4

now plot in graph where they intercept with each other i.e x and y

I could plot but it's difficult here..and remember u can suppose any point as x for y

7 0

3 years ago

I need help on the last three like really bad

ElenaW [278]

Answer:

Can't see it

Step-by-step explanation:

6 0

3 years ago

Find the vertex of a quadratic function written in standard form.

Virty [35]

Answer:

our vertex for f(x) = 3x² + 18x + 32 = (-3, 5 )

Step-by-step explanation:

let me write the standard form of a quadratic equation

$a {x}^{2} + bx + c$

Now let me rewrite the original equation

$3 {x}^{2} + 18x + 32$

Now we use this simple formula to find the vertex (h, k)

$x = h = - \frac{b}{2a} \\ = - \frac{18}{2(3)} = - \frac{18}{6} = - 3 \\ h = - 3$

substitute -3 for x back into our original equation to solve for y our k value of our vertex

$y = 3 ({ - 3})^{2} + 18( - 3) + 32 \\ = 3(9) - 54 + 32 \\ = 27 + 32 - 54 \\ = 59 - 54 \\ k = 5$

our vertex for f(x) = 3x² + 18x + 32 = (-3, 5 )

3 0

2 years ago