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
Jet001 [13]
3 years ago
10

A sample of 4 different calculators is randomly selected from a group containing 14 that are defective and 34 that have no defec

ts. What is the probability that a sample of four calculators from this batch will contain no defective calculators
Mathematics
1 answer:
rusak2 [61]3 years ago
3 0

Answer:

below

Step-by-step explanation:

P (at least one defective) = 1 - P(all calculators work)

=  

1

−

(

30

46

×

29

45

×

28

44

×

27

43

)

=

1

−

1827

10879

 

=  

9052

10879

≈

0.832

You might be interested in
3 m<br> 7 m<br> 6 m<br> UL<br> what’s the answer
belka [17]
I don’t understand the question.
8 0
3 years ago
Read 2 more answers
a candy bar box is in the shape of a triangular prism. The volume of the box is 1200 cubic centimetres. The base is 10 centimetr
Elina [12.6K]

Answer:

Step-by-step explanation:

V=\frac{HBL}{2}\\ \\ H=\frac{2V}{BL}\\ \\ H=\frac{2(1200)}{10(20)}\\ \\ H=12cm

7 0
3 years ago
Solve the following inequality. 4x-1&gt; -9
pychu [463]
Solve inequalities the way you would solve an equation except for this rule-
If you multiply or divide a negative, the sign must be switched.

Do the inverse of everything like in an equation-
4x-1> -9
+1      +1 (Add 1)
4x>-8
/4    /4     (Divide 4)
You are not dividing a negative number from another number.  So keep the sign.
x>-2
Your answer is C.


3 0
4 years ago
Prove divisibility 45^45·15^15 by 75^30
Anuta_ua [19.1K]

Answer:

3^{75}

Step-by-step explanation:

We are asked to divide our given fraction: \frac{45^{45}*15^{15}}{75^{30}}.

We will simplify our division problem using rules of exponents.

Using product rule of exponents (a*b)^n=a^n*b^n we can write:

45^{45}=(3*15)^{45}=3^{45}*15^{45}

75^{30}=(5*15)^{30}=5^{30}*15^{30}

Substituting these values in our division problem we will get,

\frac{3^{45}*15^{45}*15^{15}}{5^{30}*15^{30}}

Using power rule of exponents a^m*a^n=a^{m+n} we will get,

\frac{3^{45}*15^{45+15}}{5^{30}*15^{30}}

\frac{3^{45}*15^{60}}{5^{30}*15^{30}}

Using quotient rule of exponent \frac{a^m}{a^n}=a^{m-n} we will get,

\frac{3^{45}*15^{60-30}}{5^{30}}

\frac{3^{45}*15^{30}}{5^{30}}

Using product rule of exponents (a*b)^n=a^n*b^n we will get,

\frac{3^{45}*(3*5)^{30}}{5^{30}}

\frac{3^{45}*3^{30}*5^{30}}{5^{30}}

Upon canceling out 5^{30} we will get,

3^{45}*3^{30}

Using power rule of exponents a^m*a^n=a^{m+n} we will get,

3^{45+30}

3^{75}

Therefore, our resulting quotient will be 3^{75}.

8 0
3 years ago
Show comparison between 5/8 and 3/4. Explain.
Ilya [14]
the comparison is 2/4
6 0
3 years ago
Other questions:
  • List three words or phrases used in real life that indicate negative numbers.
    10·1 answer
  • Eliminate the parameter. X=sqrt of t y = 2t+5
    10·2 answers
  • A soccer league has 170 players. Of those players 40% are boys. How many boys are in the soccer league?
    11·2 answers
  • There are 4 red and 6 green marbles in a jar. What is the probability of drawing two green marbles, with replacement?
    7·1 answer
  • A basket contains five apples and seven peaches. You randomly select one piece of fruit and eat it. Then you randomly select ano
    7·1 answer
  • Question 5 (2) x cube - 3x square 9x - 5
    12·1 answer
  • Write true or false for each,
    15·2 answers
  • Kali is very organized, very creative, and likes to come up with different slogans for commercials. Which career pathway would b
    9·2 answers
  • It takes Andre 4 minutes to swim 5 laps. How many laps per minute is that?<br> pls what is this
    7·1 answer
  • Order the following decimals in ascending order:<br> 1.305, 1.35, 1.053, 1.53
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!