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3 years ago

Determinati nr nat a b si c stiind ca a+b +c+d=20. A:b=0. C+d=1. D:=2

Mathematics

1 answer:

____ [38]3 years ago

3 0

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A shipment of 12 microwave ovens contains three defective units. A vending company has ordered four units, and because each has

statuscvo [17]

Answer:a) 54/55

b) 100/110

c) 99/110

Step-by-step explanation:

a)Probability of ordering 4= 9/12×3/11×2/10×1/9 = 54/11880

Probability of 4 good units= 4 × 54/11880

= 216/11880

1/55

1-(1/55) = 54/55

b)Probability of 2 good units= 2 × 54/(11880)

= 108/11880

= 1/110

1- (1/110)= 100/110

c) Probability of exactly 2 units not good= 1 -(100/110) =99/110

8 0

3 years ago

Hilida spent 47$ and know has no money left she had blink before her purchase

Bas_tet [7]

Answer:

$47

Step-by-step explanation:

If she spent 47, and had none after, she spent 47.

8 0

4 years ago

What is the simplified form of the following expression? 5√8-√18-2√2

Romashka [77]

Answer:

Option (B) is correct.

To prove

As given the epression in the question is given by

$= 5\sqrt{8} - \sqrt{18} - 2 \sqrt{2}$

Now simplify the above

Terms are written as

$\sqrt{8} = \sqrt{2\times 2\times 2} = 2 \sqrt{2}$

$\sqrt{18} = \sqrt{3\times 3\times 2} = 3 \sqrt{2}$

Put in the above expression.

$= 5\times 2 \sqrt{2} -3 \sqrt{2} - 2 \sqrt{2}$

$= 10 \sqrt{2} -5 \sqrt{2}$

$=5 \sqrt{2}$

$Therefore\ the\ expression\ 5\sqrt{8} - \sqrt{18} - 2 \sqrt{2}\ is\ equivalent\ to\ 5 \sqrt{2} .$

6 0

3 years ago

What is the circumference of a circle whose diameter is 4.8 cm?

DaniilM [7]

Answer:

15.072

Step-by-step explanation:

Circumference = πD

= 4.8π

= 15.079644737231

6 0

3 years ago

Whut is the soluton of when multiplying by 3

saveliy_v [14]

The answer of this is 3,6,9,12,15,18,21,24,27,30,33,36,39,...

4 0

3 years ago