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Lady_Fox [76]
3 years ago
9

+

Mathematics
1 answer:
anastassius [24]3 years ago
3 0

Answer:

The answer is J

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Human visual inspection of solder joints on printed circuit boards can be very subjective. Part of the problem stems from the nu
valina [46]

Answer:

Step-by-step explanation:

Given that Human visual inspection of solder joints on printed circuit boards can be very subjective. Part of the problem stems from the numerous types of solder defects (e.g., pad non-wetting, knee visibility, voids) and even the degree to which a joint possesses one or more of these defects.

Let A- event inspect A found defective , B - inspector B found defective

P(A) = 0.0744\\P(B) =0.00760

P(AUB) = 0.0880,  

a) Probability that the selected joint was judged to be defective by neither of the two inspectors=P((AUB)')=1-0.0880=0.9120

b) Probability that the selected joint was judged to be defective by inspector B but not by inspector A

=P(AB')\\=P(A)-P(AB)\\

P(AB) = P(A)+P(B)-P(AB)\\= 0.0744+0.0760-0.0880\\=0.0624

Hence

P(AB')\\=P(A)-P(AB)

= 0.0766-0.0624

=0.0142

7 0
4 years ago
from a window 24 feet above the ground, the angle of elevation to the top of another building is 38 degrees. The distance betwee
Snowcat [4.5K]

Answer:

The  height of the building is 73.2\ ft

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

In the right triangle ABC

tan(38\°)=\frac{BC}{AB}

we have

AB=63\ ft

substitute and solve for BC

tan(38\°)=\frac{BC}{63}

BC=(63)tan(38\°)=49.2\ ft

Find the height of the building

The  height of the building (h) is equal to

h=BC+24=49.2+24=73.2\ ft

8 0
4 years ago
HELP ME PLEASEEEEEEEEEEEEEEEEEEE
timama [110]
True.


Hope it helps..............!
4 0
3 years ago
Read 2 more answers
Hal has 4/8 yard of string. How many 1/12 yard pieces of string can he cut from 3/4 yard?​
Mrac [35]

Answer:

9

Step-by-step explanation:

3/4=0.75

1/12=0.0833333333

(3/4)/(1/12)=9

5 0
2 years ago
Plz help me we are almost done
shusha [124]

Answer: 1. A 2. 1/5 3. 5/12 4. Not sure

Step-by-step explanation:

8 0
3 years ago
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