1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Darya [45]
2 years ago
13

Helppppppppppppppppppppppp

Mathematics
1 answer:
tresset_1 [31]2 years ago
7 0
Since it’s not x3 it must be +8 so if i were you i’d pick B
You might be interested in
Cho xOz ‘ và yOz ‘ là 2 góc kề bù. Gọi Ot là phân giác của yOz ‘. Biết xOz ‘ = 50◦ , tính xOt
ch4aika [34]

Answer:

ask in English then I can help u

5 0
3 years ago
Lie detectors have a 15% chance of concluding that a person is lying even when they are telling the truth. a bank conducts inter
Otrada [13]
Part A:

Given that lie <span>detectors have a 15% chance of concluding that a person is lying even when they are telling the truth. Thus, lie detectors have a 85% chance of concluding that a person is telling the truth when they are indeed telling the truth.

The case that the lie detector correctly determined that a selected person is saying the truth has a probability of 0.85
Thus p = 0.85

Thus, the probability that </span>the lie detector will conclude that all 15 are telling the truth if <span>all 15 applicants tell the truth is given by:

</span>P(X)={ ^nC_xp^xq^{n-x}} \\  \\ \Rightarrow P(15)={ ^{15}C_{15}(0.85)^{15}(0.15)^0} \\  \\ =1\times0.0874\times1=0.0874
<span>

</span>Part B:

Given that lie detectors have a 15% chance of concluding that a person is lying even when they are telling the truth. Thus, lie detectors have a 85% chance of concluding that a person is telling the truth when they are indeed telling the truth.

The case that the lie detector wrongly determined that a selected person is lying when the person is actually saying the truth has a probability of 0.25
Thus p = 0.15

Thus, the probability that the lie detector will conclude that at least 1 is lying if all 15 applicants tell the truth is given by:

P(X)={ ^nC_xp^xq^{n-x}} \\ \\ \Rightarrow P(X\geq1)=1-P(0) \\  \\ =1-{ ^{15}C_0(0.15)^0(0.85)^{15}} \\ \\ =1-1\times1\times0.0874=1-0.0874 \\  \\ =0.9126


Part C:

Given that lie detectors have a 15% chance of concluding that a person is lying even when they are telling the truth. Thus, lie detectors have a 85% chance of concluding that a person is telling the truth when they are indeed telling the truth.

The case that the lie detector wrongly determined that a selected person is lying when the person is actually saying the truth has a probability of 0.15
Thus p = 0.15

The mean is given by:

\mu=npq \\  \\ =15\times0.15\times0.85 \\  \\ =1.9125


Part D:

Given that lie detectors have a 15% chance of concluding that a person is lying even when they are telling the truth. Thus, lie detectors have a 85% chance of concluding that a person is telling the truth when they are indeed telling the truth.

The case that the lie detector wrongly determined that a selected person is lying when the person is actually saying the truth has a probability of 0.15
Thus p = 0.15

The <span>probability that the number of truthful applicants classified as liars is greater than the mean is given by:

</span>P(X\ \textgreater \ \mu)=P(X\ \textgreater \ 1.9125) \\  \\ 1-[P(0)+P(1)]
<span>
</span>P(1)={ ^{15}C_1(0.15)^1(0.85)^{14}} \\  \\ =15\times0.15\times0.1028=0.2312<span>
</span>
8 0
3 years ago
How would you simplify the expression represented by the diagram below?
luda_lava [24]
6 + 3c is the correct answer
3 0
2 years ago
Read 2 more answers
Solve the equation: x^2 - 6x = 7 <br><br> A. x = 7 , 1<br> B. x = -7 , 1<br> C. x = 7 , -1
Alex777 [14]
<span>x^2 - 6x = 7
(x - 7)(x + 1)= 0 
x = 7, - 1

The answer is: x = 7, -1.</span>
6 0
3 years ago
What is the value of x in the expression, x 2 = 9? Type the NUMBER in the box below.
alekssr [168]
The value of x in the expression, x 2 = 9 is 4.5

9 divided by 2 = 4.5
7 0
2 years ago
Other questions:
  • How do I write an equation in standard form with the points (3,3) (0,-3) (2,-3)
    9·1 answer
  • How do I solve this problem?
    11·1 answer
  • Help! Please! Geometry!!
    15·1 answer
  • Trapezoid Area Problem
    9·1 answer
  • Use the symbol &gt; to compare -3.5 and -1.5
    13·1 answer
  • Evaluate the expression 5x4+2x6
    9·2 answers
  • 1.) Use the Pythagorean Theorem to determine if a triangle with side lengths 28ft., 45ft., 53ft. is a right triangle.
    5·1 answer
  • Which are true about the pyramid? Check all that apply.
    15·2 answers
  • Simplify by combining like terms: -11 + 2(4x - 1) + 6 (BRAINLIEST)
    15·1 answer
  • Correct answers gets most brainiest!! :)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!