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3 years ago

Which of these expressions are equivalent to −5+(2.5+315)⋅4.25 ? Choose the TWO correct answers.

Mathematics

1 answer:

qaws [65]3 years ago

4 0

Answer: A and D

Step-by-step explanation:because my teacher told me

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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

olga_2 [115]

Answer:

The probability that the selected joint was judged to be defective by neither of the two inspectors is $P(A' n B' ) = 0.8855$

The probability that the selected joint was judged to be defective by inspector B but not by inspector A is $P(A' n B) =0.0403$

Step-by-step explanation:

From the question we are told that

The sample size is $n_s = 10000$

The number of outcome for inspector A is $n__{A}} = 742$

The number of outcome for inspector B is $n__{B}} = 745$

The number of joints judged defective by both inspector is $n(A u B) = 1145$

The the probability that the selected joint was judged to be defective by neither of the two inspectors is mathematically represented as

$P(A' n B' ) = 1 - P(A u B)$

Now

$P(A\ u \ B) = \frac{n(Au B)}{n_s }$

substituting values

$P(A\ u \ B) = \frac{1145}{ 10 000 }$

$P(A' n B' ) = 1 - \frac{1145}{10 000}$

$P(A' n B' ) = 0.8855$

the probability that the selected joint was judged to be defective by inspector B but not by inspector A is mathematically represented as

$P(A' n B) = P(A \ u \ B) -P(A)$

Now

$P(A) = \frac{n__{A}}{n_s}$

substituting values

$P(A) = \frac{742}{10 000}$

$P(A' n B) = \frac{1145}{10 000} - \frac{742}{10 000}$

$P(A' n B) =0.0403$

7 0

3 years ago

Sheriff raises is 2 ft wide 6 ft long 2 ft deep what is the volume of her freezer

USPshnik [31]

Answer:24sq.ft.

Step-by-step explanation: v=6*2*2

6×2=12

12×2=24sq.ft.

5 0

2 years ago

Find three ordered pairs for x=9

MariettaO [177]

Three examples are (9, 1), (9, -5), and (9, 3.2).

8 0

2 years ago

Help me i cant figure this out

scoray [572]

McKenzie's work is correct because on step 3 she added the A and the B correctly.

8 0

3 years ago

What type of number is - 36/12

Vitek1552 [10]

Answer:

It is an improper fraction.

Step-by-step explanation:

With fractions, if the numerator is equal to or grater than the denominator, the fraction is considered an improper fraction.

6 0

2 years ago