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2 years ago

A straight line has gradient -2 and passes through the point (-3 , 10).

Mathematics

1 answer:

Aleksandr-060686 [28]2 years ago

8 0

Answer:

y = 4 - 2x

Step-by-step explanation:

That is the formula, in y = a + mx but it you want it in y = mx+c, it is y = -2x + 4

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The net weight in pounds of a packaged chemical herbicide is uniform for 49.62 < x < 50.04 pounds.

k0ka [10]

Answer:

a) $E(X)=\frac{50.64+49.62}{2}=50.13 pounds$

b) $Var(X)= \frac{(b-a)^2}{12} =\frac{(50.04-49.62)^2}{12}=0.0147$

c) $P(X$

But we see that the distribution is defined ust between 49.62 and 50.04

And in order to find this we can use the CDF (Cumulative distribution function) given by:

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

And if we replace we got:

$P(X$

And makes sense since all the values are between 49.62 and 50.04

Step-by-step explanation:

For this case we define the random variable X ="net weigth in pounds of a packaged chemical herbicide" and the distribution for X is given by:

$X \sim U(a= 49.62, b=50.04)$

Part a

For the uniform distribution the expected value is given by $E(X) =\frac{a+b}{2}$ where X is the random variable, and a,b represent the limits for the distribution. If we apply this for our case we got:

$E(X)=\frac{50.64+49.62}{2}=50.13 pounds$

Part b

The variance for an uniform distribution is given by:

$Var(X)= \frac{(b-a)^2}{12}$

And if we replace we got:

$Var(X)= \frac{(b-a)^2}{12} =\frac{(50.04-49.62)^2}{12}=0.0147$

Part c

For this case we want to find this probability:

$P(X$

But we see that the distribution is defined ust between 49.62 and 50.04

And in order to find this we can use the CDF (Cumulative distribution function) given by:

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

And if we replace we got:

$P(X$

And makes sense since all the values are between 49.62 and 50.04

6 0

4 years ago

PLEASE HELP I DONT KNOW HOW TO SOLVE IT AND SHOW WORK

pantera1 [17]

Answer:

me either. I think u have to solve it using the ordered pairs.

Step-by-step explanation:

8 0

3 years ago

Please guys i really need an answer it is due tommorow i really need help

lara31 [8.8K]

I think what u would do is multiply the forth thing by 2 and then count how many blocks are in the 5th :)))

8 0

3 years ago

(Scientific Notation LC)

trapecia [35]

0.00067

You always want the period to the right of the first number meaning you’ll start from there counting backwards because it is negative.

8 0

1 year ago

Simplify fully A) √9/25 B) √12/√3 C) √15/√3

yaroslaw [1]

Step-by-step explanation:

A) 45

B) 6

C) 6.7082039326

8 0

3 years ago

Read 2 more answers