1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
stellarik [79]
3 years ago
8

An experimenter is studying the effects of temperature, pressure, and type of catalyst on yield from a certain chemical reaction

. Three different temperatures, five different pressures, and six different catalysts are under consideration. (a) If any particular experimental run involves the use of a single temperature, pressure, and catalyst, how many experimental runs are possible? 90 Correct: Your answer is correct. runs (b) How many experimental runs are there that involve use of the lowest temperature and two lowest pressures? 12 Correct: Your answer is correct. runs (c) Suppose that six different experimental runs are to be made on the first day of experimentation. If the six are randomly selected from among all the possibilities, so that any group of six has the same probability of selection, what is the probability that a different catalyst is used on each run? (Round your answer to four decimal places.)
Mathematics
1 answer:
irga5000 [103]3 years ago
3 0

Answer:

90

12

0.0154

Step-by-step explanation:

a) #Possible experimental run=#Temp x #pres x #cat=3x5x6=90

b) #Possible experimental run=(Temp. lowest) x 2.pres x #cat=1x2x6=12

c) C="different catalyst is used on each run"

In the first, I can choice 6 of 6 catalysts, in the second 5 of 6,...

then: P(C) = 6/6 x 5/6 x 4/6 x 3/6 x 2/6 x 1/6 = 5/324 = 0.0154

You might be interested in
Surface area of this right prism
Sphinxa [80]

\qquad\qquad\huge\underline{{\sf Answer}}

\textsf{Let's calculate the surface area of given right prism}

\textbf{Area of Triangles :}

  • \sf{\dfrac{1}{2}\cdot 16\cdot 12}

  • \sf{8×12}

  • \sf96 \:  \: cm {}^{2}

\textsf{Since there are two triangles, }

\textsf{Area of Triangles = 96 × 2 = 192 cm²}

\textbf{Now, calculate the Areas of rectangles :}

  • \textsf{Area - 1 = 12 × 10 = 120 cm²}

  • \textsf{Area - 2 = 16 × 10 = 160 cm²}

  • \textsf{Area - 3 = 20 × 10 = 200 cm²}

\textsf{Now add them all :}

  • \textsf{120 + 160 + 200 + 192}

  • \textsf{672 cm²}

7 0
3 years ago
Read 2 more answers
Alice works at a health care facility. She has measured the hemoglobin levels of 200 people. The data follows a normal distribut
amid [387]
              This is a normal distribution with a Mean: 14 g/dL and a Standard deviation: 1 g/dL.
    A ) Hemoglobin levels less than 13:
    13 = 14 - 1 = Mean - 1 SD
    0.16  x 200 = 32
    Answer:  32 people.
    B ) Hemoglobin levels greater than 14 :
     0.50  x 200 = 100
     Answer:  100 people. 
7 0
3 years ago
The graph shows the relationship between the pounds of candy bought at a candy shop and the total cost, in dollars.
Vesna [10]
C I took the test and got it right
6 0
3 years ago
Why are mathematicians like airlines?
ipn [44]
They both use planes.
8 0
4 years ago
julie has 10 yards of ribbon she divides the ribbon into 3 equal pieces and uses 2 of the pieces on gifts how much ribbon does s
Lunna [17]

Answer:

2/3

Step-by-step explanation:

if we divide 10 by 3 then we get 3.3 repeating so just use the fraction 1/3. if you use 2 of the divided lengths then you get 2/3

4 0
3 years ago
Other questions:
  • Scientists us the system of ... to write very large or very small number
    13·1 answer
  • A rectangle swimming pool was 9 meters wide with a surface area of 90 square meters. what is the length of the pool.
    13·1 answer
  • I need help with this question!!
    5·2 answers
  • What is −2 1/4⋅(−2 1/3) ?
    10·2 answers
  • when you use the distance formula does the order in which you subtract the x and y coordinates matter explain
    8·2 answers
  • Find the distance between the following points<br> C(11, -12), D(6, 2)
    12·1 answer
  • What does the 6 stand for in 8,375,693.1? 0.6 6 600 6000​
    12·1 answer
  • I need the answer its due today
    14·1 answer
  • What statement summarizes the idea in this cartoon? (5 points)
    7·1 answer
  • Equivalent expressions: negative numbers &amp; distribution
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!