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Mrac [35]
3 years ago
12

A group of 500 transistors is known to contain one defective unit. What is the probability that a transistor selected at random

from the lot is the bad one? 1/500 499/500 1/499
Mathematics
2 answers:
lesya692 [45]3 years ago
5 0

Answer:

Option A is correct.

Step-by-step explanation:

Given: Number of transistors in a lot = 500

            Number of defective transistors in a lot = 1

To find: Probability of selecting a defective transistor from the lot.

Probability=\frac{Number\:of\:Favorable\:Outcome}{Total\:Number\:of\:Outcome}

Probability\:of\:getting\:a\:bad\:transistor=\frac{1}{500}

Therefore, Option A is correct.

sergejj [24]3 years ago
3 0
The answer is 1/500 because it will always be the probability of the event occurring/total events
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djyliett [7]
Ok what do u need help with?

7 0
3 years ago
Liam invests £8000 in a savings account for 4 years. The savings account pays compound interest at a rate of: 4.5 % for the firs
madam [21]

Answer:

The value of Liam's investment at the end of 4 years is £9069.764

Step-by-step explanation:

Compound interest is interest calculated on the initial principal, which also includes all of the accumulated interest of previous periods of an investment.

We multiply the principal amount by one plus the annual interest rate to the power of the number of compound periods to get a combined figure for principal and compound interest.

4.5% in the first year;

4.5/100 = 0.045

(1 + 0.045) × 8000 =

1.045 × 8000 = £8360.

2.75% for all subsequent year;

2.75/100 = 0.0275

1 + 0.0275=1.0275

Number of years is;

4-1=3years

Therefore,

8360 × (1.0275)^3 =

8360 × 1.0849 = £9069.764

3 0
3 years ago
Read 2 more answers
You would like to make a nutritious meal of eggs, edamame, and elbow macaroni. The meal should provide at least 40 g of carbohyd
arsen [322]

Answer:

2x + 12y + 43 ≥ 40

17x + 12y + 8z ≥ 20

14x + 6y + z ≤ 50

x ≥ 0

y ≥ 0

z ≥ 0

Step-by-step explanation:

given:

Cost Eggs = $2

Cost of edema = $5

cost of  elbow Macaroni = $3

Lets eggs = x,

edamame = y

elbow macaroni = z

TC = 2x+5y+3z

Therefore;

2x + 12y + 43 ≥ 40

17x + 12y + 8z ≥ 20

14x + 6y + z ≤ 50

x ≥ 0

y ≥ 0

z ≥ 0

the first objective is to make sure the total cost is subject to the required nutritional requirements.

So the total cost function (TC) is denoted by the number of servings multiplied for each costs. Eggs cost $2, edamame $5, and macaroni $3.

The problem subjects that each meal contains at least 40g of carbohydrates (this is the condition).

to get this we need to add what each meal component adds to the total, eggs add 2g of carbs, edamame 12g, and macaroni 43g.

Same should be done for protein, we require at least 20 grams of protein,  Eggs add 17g, edamame adds 12g, and macaroni adds 8g.

and lastly we don't want more than 50 grams of fat,  Eggs add 14g, edamame add 6g and macaroni 1g.

4 0
3 years ago
5/773 PLZ help i will mark Brainlist
oksian1 [2.3K]

Answer: 0.0064683053

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5 0
3 years ago
Find the exact value of Cos(-pi/12)
Inga [223]
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8 0
3 years ago
Read 2 more answers
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