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Ede4ka [16]
3 years ago
13

Explain how do you know that in × 6,273 =6,273 the ? will be 1

Mathematics
1 answer:
kati45 [8]3 years ago
7 0
Are you asking that in the equation X*6,273=6,273 X will be one? If so you can know this because 1 times anything equals itself, one is the only number to do this, an example is 1 times 2 equals 2. what ever number that equals x must be multiplied by 6,273 and still equal 6,273. In multiplication 1 acts like zero dose in addition. If you have 5 cookies and you don't take away any (5-0) then you will still have 5 cookies. It would be silly to say you now have three cookies because we didn't take away any.
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Each bag of apples weighs 4 1/2 lb how much do 6 bags weigh?
Inessa [10]

Answer:

27 pounds

Step-by-step explanation:

You need to multiply 4.5 by 6.

Hope this helps.

7 0
3 years ago
Records indicate that for parts coming out a hydraulic repair shop at an airplane rework facility, 30\% will have a shaft defect
mrs_skeptik [129]

Answer:

P(A|B) = P(A∩B)/P(B) = 100%

Which means that there is 100% probability that the item has at least one type of defect given that the item has only a shaft defect.

Step-by-step explanation:

Conditional probability P(A|B) can be expressed as;

P(A|B) = P(A∩B)/P(B) .....1

Given;

30% will have a shaft defect,

15% will have a bushing defect,

and 65% will be defect-free

Total probability = 100% = P(shaft or/and bushing defect) + P(defect free)

P(shaft or/and bushing defect) = 100% - P(defect free)

= 100% - 65% = 35%

And

P(shaft or/and bushing defect) = P(shaft def only) + P(bushing def only) + P(shaft and bushing defect)

P(shaft or/and bushing defect) = P(shaft defect) + P(bushing defect) - P(shaft and bushing defect)

Substituting the values we have;

35% = 30% + 15% - P(shaft and bushing defect)

P(shaft and bushing defect) = 45% - 35% = 10%

Let A="The item has at least one type of defect"; and B="The item has only a shaft defect".

P(A) = P(shaft or/and bushing defect) = 35%

P(B) = P(shaft only defect) = 30% - 10% = 20%

P(A∩B) = 20%

Substituting into equation 1

P(A|B) = P(A∩B)/P(B) = 20%/20%

P(A|B) = 1/1 = 100%

Which means that there is 100% probability that the item has at least one type of defect given that the item has only a shaft defect.

5 0
3 years ago
Which of the following is not a factor of x^3 – 3x^2 – 4x + 12?
Slav-nsk [51]

Answer:

c. (x + 3)

Step-by-step explanation:

using factor theorem

if x - 3 is a factor then p(a) = 0

p(a)= x^3 - 3x^2 - 4x + 12

a.(x-3)

p(3) = (3)^3 - 3(3)^2 - 4(3) + 12

= 27 - 27 - 12 + 12

= 0

therefore x-3 is a factor

b.(x + 2)

p(-2) = (-2)^3 - 3(-2)^2 - 4(-2) + 12

= -8 -12 + 8 + 12

,= 0

therefore x + 2 is a factor

c.(x + 3)

p(-3) = (-3)^3 - 3(-3)^2 - 4(-3) + 12

= -27 -27 + 12 + 12

= -30

therefore x + 3 is not a factor

d.(x-2)

p(2) = (2)^3 - 3(2)^2 - 4(2) + 12

= 8 -12 - 8 + 12

= 0

therefore x - 2 is a factor

4 0
3 years ago
If anybody could help with this question I would appreciate it so much!!
elena-14-01-66 [18.8K]

Answer:

d=7

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
A parachutist jumped from an airplane at an elevation of 11,880 feet above the ground.
Vika [28.1K]

Answer:

[D] -552.5 feet

Step-by-step explanation:

You have to multiply 5 by -110.5

Hence, Answer = -552.5 feet

[RevyBreeze]

5 0
2 years ago
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