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Marrrta [24]
4 years ago
7

Suppose 4% of all cell phone chips are defective. we randomly select 100 of the 50,000 cell phone chips produced in a day. what

is the chance that 2 defective chips will be found?
Mathematics
1 answer:
Alexandra [31]4 years ago
4 0

Chips Defective Chips

Al chips 4 %

Total production per day 50.999 4 %

Randon sample sold 100 4 %

% defectives should be = % total production

Defectives expected in sample is 4% of 100 = 4 x 100 / 100 = 4

Chance of 2 defective chips 1

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Sandrena and her friends brought frozen yogurt for 55 cents per ounce.their total was $10.45.how many ounces did they buy?
lianna [129]
You would divide 10.45 by .55 and you would get 19 so 19 is your answer hope this helps
6 0
4 years ago
How do you do this problem?
aev [14]

f(x) = (x - 4)^2 - 1

g(x) = -(1/4) ( x - 4)^2 + 4

both the x and y values have to be the same. Start with the y values

f(x) = g(x)

(x - 4)^2 - 1 = -(1/4) (x - 4)^2 + 4 Add 1 to both sides.

(x - 4)^2 = -(1/4) (x - 4)^2 + 5 Add 1/4(x - 4)^2 to both sides.

(5/4) (x - 4)^2 = 5 Divide by 5/4 on both sides.

(x - 4)^2 = 5//(5/4)

(x - 4)^2 = (5/1)//5/4 Invert the second fraction and multiply

(x - 4)^2 = 5/1 * 4/5

(x - 4)^2 = 4 The 5s cancel

(x - 4)^2 = 4 Take the square root of both sides.

(x - 4) = +/- 2 Add 4 to each answer. Start with +2 on the right.

x - 4 + 4 = 2 + 4

x = 4 + 2 = 6

The x value that makes f(x)- g(x) = 0 is x = 6 The point is (6,3) answer.

Answer C.

================================================

You do not need this next part. It is just for completeness.

x - 4 = - 2

x = 4 -2

x = 2

What are the y values for these 2 x values?

y = (x - 4)^2 - 1

y = (6 - 4)^2 - 1

y = 4 - 1

y = 3

The point where f(x) - g(x) = 0 is (6,3) <<<<<< Answer 1

The second point is

y = (x - 4)^2 - 1

y = (2 - 4)^2 - 1

y = (-2)^2 - 1

y = 4 - 1

y = 3

The second point is (2,3). Answer 2

Note the y values are the same. You might expect that.

3 0
4 years ago
Read 2 more answers
Can someone help me plz
Veseljchak [2.6K]

Answer:

- (- 10)

Step-by-step explanation:

Point A is positioned at - 10 on the number line.

The opposite is the negative of the value

That is the opposite of - 10 is - (- 10)

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Find the surface area of the pyramid.
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Answer:

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Step-by-step explanation:

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