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2 years ago

What advice would you give to a person who handles hydrogen and oxygen in their workplace?

Mathematics

1 answer:

kramer2 years ago

8 0

My advice is don't smoke and make sure you don't keep the two close together. Hope this helped,

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Given 8x + 2 = 3 - x; x =

schepotkina [342]

Answer:

x = 1/9

Step-by-step explanation:

8x + 2 = 3 - x

Add x to both sides.

9x + 2 = 3

Subtract 2 from both sides.

9x = 1

Divide both sides by 9.

x = 1/9

3 0

3 years ago

Read 2 more answers

(Uniform) Suppose X follows a continuous uniform distribution from 4 to 11. (a) Write down the PDF of X. (b) Find P(X ≤ 7). Roun

love history [14]

Answer:

a) $f(x)= \frac{1}{11-4}= \frac{1}{7}, 4 \leq x \leq 11$

b) $P(X\leq 7) = F(7) = \frac{7-4}{11-4}= 0.4286$

c) $P(5 < X \leq 7)= F(7) -F(5) = \frac{7-4}{7} -\frac{5-4}{7}= 0.2857$

d) $P(X >5 | X \leq 7)$

And we can find this probability with this formula from the Bayes theorem:

$P(X >5 | X \leq 7)= \frac{P(X>5 \cap X \leq 7)}{P(X \leq 7)}= \frac{P(5$

Step-by-step explanation:

For this case we assume that the random variable X follows this distribution:

$X \sim Unif (a=4, b =11)$

Part a

The probability density function is given by the following expression:

$f(x) = \frac{1}{b-a} , a \leq x \leq b$

$f(x)= \frac{1}{11-4}= \frac{1}{7}, 4 \leq x \leq 11$

Part b

We want this probability:

$P(X \leq 7)$

And we can use the cumulative distribution function given by:

$F(x) = \frac{x-a}{b-a}= \frac{x-4}{11-4}$

And replacing we got:

$P(X\leq 7) = F(7) = \frac{7-4}{11-4}= 0.4286$

Part c

We want this probability:

$P(5 < X \leq 7)$

And we can use the CDF again and we have:

$P(5 < X \leq 7)= F(7) -F(5) = \frac{7-4}{7} -\frac{5-4}{7}= 0.2857$

Part d

We want this conditional probabilty:

$P(X >5 | X \leq 7)$

And we can find this probability with this formula from the Bayes theorem:

$P(X >5 | X \leq 7)= \frac{P(X>5 \cap X \leq 7)}{P(X \leq 7)}= \frac{P(5$

7 0

2 years ago

HELP ASAPPPP !!!! NEED ANSWERS NOW!!

Nikitich [7]

Answer: 1. 2nd endpoint (24,-18) 2. 2nd endpoint: (-19,4)

Step-by-step explanation:

1. $\frac{-10+x}{2}$ = 7 x = 24

$\frac{6+y}{2}$ = -6 y= -18

2nd endpoint: (24,-18)

2. $\frac{-1+x}{2}$ = -10 x= -19

$\frac{0+y}{2}$ = 2 y= 4

6 0

3 years ago

Can someone help please ?

Murljashka [212]

Answer:

-22

Step-by-step explanation:

equantion: (n + 15).6= -42

n = -22

7 0

2 years ago

Justine is following a recipe that calls for 1 cup lemon juice for every 2 cups of sugar. If she uses 3 cups of lemon juice, how

velikii [3]

Answer:

6 cups

Step-by-step explanation:

We can use ratios to solve

1 cup lemon 3 cups lemon

------------------- = ---------------

2 cups sugar x cups sugar

Using cross products

1 * x = 2 * 3

x = 6

8 0

3 years ago

Read 2 more answers