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liberstina [14]
3 years ago
7

A survey showed that the probability that an employee gets placed in a job that is suitable for the employee is 0.65. A psychome

tric test consultant claimed that he could help place any employee in a suitable job based on the result of a psychometric test. An employee working in a particular company decides to take this test. The test has an accuracy rate of 70%. This data is represented in the tree diagram.
The probability that the employee is in the wrong job and the test predicts that he is in the wrong job is .

A. 0.105

B. 0.195

C. 0.245

D. 0.455
Mathematics
2 answers:
Natasha_Volkova [10]3 years ago
6 0
Answer would be A)0.105.
ZanzabumX [31]3 years ago
5 0
The answer to this question is a.
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What is the perimeter of triangle ABC?
kkurt [141]

Option B:

The perimeter of ΔABC is 28 units.

Solution:

AD = 5, DC = 6 and AB = 8

AD and AE are tangents to a circle from an external point A.

BE and BF are tangents to a circle from an external point B.

CD and CF are tangents to a circle from an external point C.

<em>Tangents drawn from an external point to a circle are equal in length.</em>

⇒ AD = AE, BE = BF and CD = CF

AE = 5

AE + BE = AB

5 + BE = 8

Subtract 5 from both sides.

BE = 3

BE = BF

⇒ BF = 3

CD = CF

⇒ CF = 6

Perimeter of the polygon = AE + BE + BF + CF + CD + AD

                                         = 5 + 3 + 3 + 6 + 6 + 5

                                         = 28

The perimeter of ΔABC is 28 units.

Option B is the correct answer.

7 0
3 years ago
you have 3 red seashells 5 blue seashells and 2 yellow sea shells what is the probability of picking a red seashell then without
alina1380 [7]

Probability of any event = ( favourable outcomes ) /total number of outcomes

Probability of = 3/10 + 2/9 = \frac{47}{90}

7 0
4 years ago
AC ← → and BC ← → are tangent to circle O at points A and B, respectively. If m∠ADB = 42°, what is m∠ACB ?
goblinko [34]
D. 96°
If m∠ADB = 42°
m∠ACB=96°
3 0
3 years ago
F(x)=x2+8x+6. What is the value of f(4)?
dezoksy [38]
46

When it says f(4) that means x=4

So you then just fill in all the x’s with 4’s and solve as normal
4 0
3 years ago
Use unit multipliers to convert 123 pounds per mile to ounces per centimeter. There are 5,280 feet in 1 mile. There are 16 ounce
gregori [183]
A unit multiplier is a conversion factor of value 1 that we can use to convert quantities.
We want to convert 123 pounds per mile to ounces per centimeter. 
First, we are going to express the quantity to convert as a fraction:
123 pounds per mile=123 \frac{pounds}{mile}

Next, we are going to find our multipliers:
- We know for our problem that there are 5,280 feet in 1 mile, so our first multiplier will be: \frac{1mile}{5280ft}
- We also know that there are 16 ounces in 1 pound, so our second multiplier will be: \frac{16ounces}{1pound}
- We know that there are 12 inches in 1 foot, so our third multiplier will be: \frac{1ft}{12in}
- We know that t<span>here are approximately 2.54 cm in 1 inch, so our fourth multiplier will be: </span>\frac{1in}{2.54cm}

Now we can put all our multipliers together:
123 \frac{pounds}{mile} * \frac{1mile}{5280ft}*\frac{16ounces}{1pound}* \frac{1ft}{12in}*\frac{1in}{2.54cm}=0.01 \frac{ounces}{cm}

We can conclude that the answer is 0.01
3 0
4 years ago
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