MATHEMATICS HIGH SCHOOL

The purchasing director of a bank has just received a shipment of 100 printers. She has been told that the shipment includes 5 defective printers. She randomly selects two printers and tests them. If both printers work,the purchasing director accepts the shipment.A)First find the probability that the two printers work.
B)Now use the idea of complements to find the probability that the shipment is rejected.

Answers

Answer 1
Answer: Since there is a 95% chance that you get two printers right, then you simply square the decimal equivalent which is .95 (Hence, you do .95^2). You will get .9025 (or 90.25%). 

For letter b, you simply subtract .9025 from 1. 
ans = 1-.9025
ans = .0975 (or 9.75%)

So the answer to B) would be there is a 9.75% chance the probability of a shipment can be rejected.

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The number of chips of different colors in Amy's bag is shown below: 8 blue chips 9 pink chips 1 white chip Amy takes out a chip from the bag randomly without looking. She replaces the chip and then takes out another chip from the bag. What is the probability that Amy takes out a pink chip in both draws?

Answers

probability of an event happening = number of ways it can happen
                                                              total number of outcomes

Given:
blue chips = 8
pink chips = 9
white chips=1
total          = 18

1st draw:
pink chip = 9/18 = 1/2

2nd draw:
pink chip = 9/18 = 1/2

Answer:

81/324

Step-by-step explanation:

9/18 * 9/18 = 81/324

3.6x = 5.5, what is it round to the nearest tenth?

Answers

Rounded to the nearest tenth x would be 1.5. This is because when you divide 5.5 by 3.6 you get 1.527 round that to the hundredths place you get 1.53 round it to the tenths you get 1.5
the answer would be 1.5

Match the number on the net with the appropriate vertex on the prism.

Answers

Answer:

1. D

2. A

3. H

4. C

5. G

Step-by-step explanation:

A man walks due west for 4 km. He thenchanges direction and walks on a bearing of
197° until he is south-west of his starting point.
How far is he then from his starting point? with workings​

Answers

Answer:

Step-by-step explanation:

Let the starting point be B and the stopping be C as shown in the diagram below.

therefore, the angle at A will be (197-90)degree = 107degree

the angle at B is 45degree, since it is directly south west of C.

therefore the angle at C will be A+B+C=180 degree(sum angle of a triangle)

107+45+C=180

therefore, C=180-107-45=28degree

therefore, using sine rule gives;

sinA/a =sinC/c

sin107/a=sin28/4

0.9563/a=0.4695/4

0.9563/a=0.11736

therefore, a =0.9563/0.11736=8.148=8.1km(approx.)

Assuming that red tiles represent negative terms, what algebraic expression do the above algebra tiles represent plzzzzzzzzzzzz helpppppppp

Answers

Answer:B

Step-by-step explanation:

I just tried it and i got a 100

Answer:

b

Step-by-step explanation:

Help on similar triangles #14

Answers

To find the volume of a cube, the equation is V=s^3, where s is the side length of the figure.

The lengths of the cubes in this problem are 8 and 6

8^3=512
6^3=216

512:216 is the ratio of the larger cube to the smaller cube
Simplify the ratio

512:216=128:54=64:27

64:27
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