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IRISSAK [1]
3 years ago
8

A box contains 10 ​transistors, 3 of which are defective. If 3 are selected at​ random, find the probability that a. All are def

ective. b. None are defective.
Mathematics
2 answers:
bixtya [17]3 years ago
6 0
3/10(2/9)(1/8)

3/10(3/9)(3/8)
kherson [118]3 years ago
5 0
A) 3/10 x 2/9 x 1/8= 1/120

b) 1-1/120=119/120
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Evaluate ab for a = -2 3/4 and b= - 4/6
nataly862011 [7]

Answer:

1  5/6

Step-by-step explanation:

ab = (-2 3/4) * (-4/6)

     = ( -11/4) * ( -4/6)

     = (11 * 4) / (4 * 6 )

      = 11/6

       = 1  5/6

7 0
3 years ago
The pyramid shown has a square base that is 32 centimeters on each side. The slant height is 24 centimeters. What is the lateral
masya89 [10]
L.S.A.=1/2pl where p represents the perimeter of the base and l the slant height.
L.S.A. = ½(4*32)(24)
L.S.A. = ½ (128)(24)
L.S.A. =1/2(3072)
L.S.A. = 1536 cm
6 0
3 years ago
Read 2 more answers
An ambulance has a mass of 5.44×105 ounces. Which unit of measurement is most appropriate to measure this mass? milligrams tons
ArbitrLikvidat [17]
Kilograms would be the answer
8 0
3 years ago
Recycled​ CDs, Incorporated, offers a choice of 5 used CDs for ​$27​, with each additional CD costing ​$5. Write a cost function
notka56 [123]

A function assigns the values. The cost of 6 CDs will be $32.

<h3>What is a Function?</h3>

A function assigns the value of each element of one set to the other specific element of another set.

Given that the Recycled​ CDs. Incorporated, offers a choice of 5 used CDs for ​$27​, with each additional CD costing ​$5. Therefore, a cost function for purchasing 5 or more CDs, where x represents the number of CDs over 5 can be written as,

C(x) = $27 + $5(x)

Now, if 6 CDs are purchased then the number of CDs that are more than 5 is 1. therefore, the cost of 6 CDs will be,

C(1) = $27 + $5(1)

     = $27 + $5

     = $32

Hence, the cost of 6 CDs will be $32.

Learn more about Function here:

brainly.com/question/5245372

#SPJ1

8 0
2 years ago
My last problem and I'm stuck please help!!​
WITCHER [35]
Answer is C= -125,125
4 0
3 years ago
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