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AysviL [449]
3 years ago
10

Suppose a manufacturer knows from previous data that 2.5% of one type of lightbulb are defective. The quality control inspector

randomly selects bulbs until a defective one is found. Is this a binomial experiment? Why or why not?
Mathematics
2 answers:
Anastasy [175]3 years ago
6 0

Answer:

No, because the number of trials is not fixed.

Step-by-step explanation:

a. pe. x

9966 [12]3 years ago
4 0

Answer:B

Step-by-step explanation: khan - There is no fixed number of trials , so D is not a binomial variable.

You might be interested in
In the diagram below AE = 6, EB = 3, and DE = 2. Find CE
cluponka [151]

Theorem: If two chords intersect within a circle, then the product of the lengths of the segments (parts) of one chord is equal to the product of the lengths of the segments of the other chord.

In your case,

AE\cdot EB=CE\cdot ED.

If AE = 6, EB = 3, and DE = 2, then

6\cdot 3=CE\cdot 2,\\ \\CE=\dfrac{6\cdot 3}{2}=9.

Answer: correct choice is D.

4 0
3 years ago
Kim and Danielle each improved their yards by planting hostas and ivy. They bought their supplies from the same store. Kim spent
svetlana [45]

Answer:

The cost of one hosta is $6

Step-by-step explanation:

A system of linear equations is a set of two or more equations of the first degree, in which two or more unknowns are related.

Solving a system of equations consists of finding the value of each unknown so that all the equations of the system are satisfied.

In this case, the variables are:

  • x = price of a hosta .
  • y = price of a pot of ivy.

If Kim spent $62 on 5 hostas and 4 pots of ivy, t his is represented by the equation: 5*x +4*y= 62

If Danielle spent $144 on 8 hostas and 12 pots of ivy, t his is represented by the equation: 8*x +12*y=144

So, the system of equations to solve is:

\left \{ {{5*x+4*y=62} \atop {8*x+12*y=144}} \right.

One way to solve a system of equations is through the substitution method, which consists of solving or isolating one of the unknowns (for example, x) and substituting its expression in the other equation. In this way, you obtain an equation of the first degree with the other unknown, and. Once solved, you calculate the value of x by substituting the already known value of y.

Isolating y from the first equation:

y=\frac{62-5*x}{4}

and replacing this expression in the second equation you get:

8*x +12*\frac{62-5*x}{4}=144

Solving:

8*x +\frac{12}{4}*(62-5*x)=144

8*x + 3*(62-5*x)=144

8*x + 3*62 - 3*5*x=144

8*x + 186 - 15*x=144

8*x  - 15*x=144 -186

(-7)*x= -42

x= (-42)÷ (-7)

x= 6

<u><em>The cost of one hosta is $6</em></u>

8 0
3 years ago
PLEASE HELP!!!<br><br>Answer: ​
Vsevolod [243]

Answer:

42

Step-by-step explanation:

3 0
3 years ago
Find the value of x.
Colt1911 [192]

Answer:

  x = 16 2/3

Step-by-step explanation:

The altitude divides the triangle into similar triangles. We can form the ratio between the hypotenuse and the short leg for two of the triangles. Those ratios will be a proportion:

  10/6 = ((x-6) +6)/10

  100/6 = x . . . . . multiply by 10 and simplify

  x = 16 2/3

7 0
3 years ago
The following two triangles are similar find x
slavikrds [6]

Answer:

5

Step-by-step explanation:

As we can see they are similar triangles then

the ratio of the corresponding sides are equal then

x /25 = 9/45

x = 25 * 1/ 5

x = 5

Hope it will help :)

5 0
3 years ago
Read 2 more answers
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