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ser-zykov [4K]
4 years ago
15

How many Oxygen atoms are in the following equation Pb(C2H3O2)2

Mathematics
1 answer:
OverLord2011 [107]4 years ago
7 0
There’s 4 oxygen as O2 is multiplied by 2 as there are 2 groups of c2h3o2 present.
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An experiment has four equally likely outcomes: E1, E2, Es, and E.Round your answers to three decimal places. a. What is the pro
V125BC [204]

Answer:

a. 0.25

b. 0.50

c. 0.75

Step-by-step explanation:

P(E1) = 0.25

P(E2) = 0.25

P(Es) = 0.25

P(E) = 0.25

a. Since there are 4 outcomes with the same probability of occurring, the probability of E occurring is:

P(E) = \frac{1}{4}=0.25

b. The probability of any two outcomes occurring is twice the probability of a single outcome occurring

P(two\ outcomes) = 2*P(one\ outcome) = \frac{2}{4}=0.50

c. The probability of any three outcomes occurring can be written as 100% minus the probability of the remaining outcome occurring

P(three\ outcomes) = 1-P(one\ outcome) = 1-\frac{1}{4}=0.75

6 0
3 years ago
HELP!! LOOK AT THE PIC AND SOLVE IT. <br> HELP WILL BE APPRECIATED
Mrrafil [7]

Answer:

a. the difference in lengths of the two pieces of carpet is 1.1m

b. total length of the carpet put together is 8.1m

Step-by-step explanation:

⇒ One piece of carpet is 3.5m long             (given)

⇒ Another piece of carpet is 4.6m long       (given)

a. What is the difference in lengths of the two pieces of carpet?

⇒ difference means subtract

⇒ 4.6m - 3.5m = 1.1m

b. Simon lays the two pieces of carpet together, end to end, What is the total length of the carpet?

⇒ total length means addition

⇒ 4.6m + 3.5m = 8.1m

4 0
2 years ago
What’s the domain of the graph?
AveGali [126]

Answer:

1 through 4... I think

Step-by-step explanation:

6 0
3 years ago
What does +7×(-15)= what does that equal
irinina [24]
-105 hope this helps you
6 0
4 years ago
Read 2 more answers
Simplify using only POSITIVE exponents:
pickupchik [31]

So here are a few rules with exponents that you should know:

  1. Multiplying exponents of the same base: x^m*x^n=x^{m+n}
  2. Dividing exponents of the same base: x^m\div x^n=x^{m-n}
  3. Powering a power to a power: (x^m)^n=x^{m*n}
  4. Converting a negative exponent to a positive one: x^{-m}=\frac{1}{x^m}\ \textsf{and}\ \frac{1}{x^{-m}}=x^m
<h2>1.</h2>

Firstly, solve the outside exponent:

(2x^3y^7)^{-2}=2^{-2}x^{3*-2}y^{7*-2}=2^{-2}x^{-6}y^{-14}

Next, convert the negative exponents into positive ones:

2^{-2}x^{-6}y^{-14}=\frac{1}{2^2x^6y^{14}}=\frac{1}{4x^6y^{14}}

<u>Your final answer is \frac{1}{4x^6y^{14}}</u>

<h2>2.</h2>

For this, just divide:

\frac{12x^5y^3}{4x^{-1}}=\frac{12}{4}x^{5-(-1)}y^{3-0}=3x^6y^3

<u>Your final answer is 3x^6y^3</u>

<h2>3.</h2>

For this, convert all negative exponents into positive ones:

\frac{r^{-7}b^{-8}}{t^{-4}w}=\frac{t^4}{r^7b^8w}

<u>Your final answer is \frac{t^4}{r^7b^8w}</u>

3 0
4 years ago
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