3
Suppose that a very la: Enter your search term
cameras and that of them are defective. A sample of 2 cameras is
8
selected at random. Define the random variable X as the number of defective cameras in the sample.
a. Write the probability distribution for X. Round to two decimal places.
X
P(X)
b. What is the expected value of X? Round to two decimal places.
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Answers

Answer 1

Answer:

you were present when a senor student bullied a junior one. describe what happened to the teacher on duty


Related Questions

If (2^a)=(3^b), what is the ratio of a to b?
Please use logarithms in the solution and explain.

Answers

Answer:

Step-by-step explanation:

Taking the log of both sides, we get:

a log 2 = b log 3

                                                                     b log 3

Dividing both sides by log 2 yields  a = ------------------

                                                                       log 2

Finally, dividing both sides by b yields the desired ratio, a/b:

a         log 3

---- = --------------

b         log 2

what is 90 divided by 19 +607 divided by 1

Answers

Answer:

611.73

Step-by-step explanation:

90 divided by 19 is 4.73 then add 607 which adds up to 611.73 then divide by 1 which is 611.73

Will give 50points Pleasee help urgent!

Answers

Answer:

a = 10; a = 2

Step-by-step explanation:

Step 1: Use the Pythagorean theorem to solve this equation

    1. Orignal eqaution: (a + 2)² + (a - 5)² = (a + 3)²

    2. Expand (a + 2)² + (a - 5)² which will give us 2a² - 6a + 29

    3. Expand (a + 3)² giving us a² + 6a + 9

    4. Simplified equation: 2a² - 6a + 29 = a² + 6a + 9

Step 2: Subtract 9 from both sides

    1. 2a² - 6a + 29 - 9 = a² + 6a + 9 - 9

    2. Simplify: 2a² - 6a + 20 = a² + 6a

Step 3: Subtract 6a from both sides

    1. 2a² - 6a + 20 - 6a = a² + 6a - 6a

    2. Simplify: 2a² -12a + 20 = a²

Step 4: Subtract a2 from both sides

    1. 2a² - 12a + 20 - a² = a² - a²

    2. Simplify: a² - 12a + 20 = 0

Step 5: Use the quadratic formula to solve for a

    1. Quadratic formula: a = -b += √b² - 4ac/2a

    2. Plug in the correct values: a = -(-12) += √(-12)² + 4(1)(20)/2(1)

    3. Simplify the numerator and denominator: 12 += 8/2

    4. Final equation: a = 12 - 8/2  or a = 12 + 8/2

    5. Hence, the answer is 10 or 2

Billy has a credit card with a current balance of $3,500 and a 16% APR. With his current monthly payment, he will be able to pay off this debt in 15 months. But Billy just learned that he is getting a raise at work. If he puts all of the extra income from his raise into his monthly credit card payment, how much additional monthly income would he require from his raise to pay off the credit card in 12 months?

Answers

Answer:

It's A :)

Step-by-step explanation:

ur welcome

Answer:

✅ A. $58.57

i took the test⬇️

For a 15 year mortgage of $200000 at 5.125%, how much money was paid back to the lender at the end of the 15 years?

Answers

Answer:

Step-by-step

Monthly payments on a $200,000 mortgage

At a 4% fixed interest rate, your monthly mortgage payment on a 30-year mortgage might total $954.83 a month, while a 15-year might cost $1,479.38 a month.explanation:

hope this helped

Monthly payments on a $200,000 mortgage

At a 4% fixed interest rate, your monthly mortgage payment on a 30-year mortgage might total $954.83 a month, while a 15-year might cost $1,479.38 a month.

The amount of money which is paid back to the lender at the end of the 15 years is $353,750.

What is Interest?

Interest in simple terms is the extra amount that you have to pay if you borrow money or the extra money you get if you lend the money.

Given that,

Principal amount of the mortgage = $200,000

Rate of interest, r = 5.125% = 0.05125

Number of years, t = 15 years

Simple interest = Prt

                         = 200,000 × 0.05125 × 15

                         = 153,750

Total money paid back to lender = Principal amount + Interest amount

                                                       = $200,000 + $153,750

                                                       = $353,750

Hence the money paid back is $353,750.

Learn more about Interest here :

https://brainly.com/question/13803142

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Match together cards with equivalent ratios: 3:4, 10:5, 50:100, 2:1, 5:2, 15:20, 15:6, 1;2,

Answers

Answer:

Step-by-step explanation:

50:100 and 1:2

15:20 and 3:4

15:16 and 5:2

10:5 and 2:1

Hope this helps!

Helen is a sales person. She sold a cell phone for $93 and earned 20% commission. How much commission did Helen earn? help quick

Answers

Answer:

18.60

Step-by-step explanation:

Let's first know what commission meaning:

Commission: Commission is the amount of money an employee earns when they sell something

Now Let's Start Solving:

[tex]Formula:\frac{Part}{Whole} =\frac{percent}{100}[/tex]

[tex]\frac{x}{93} =\frac{20percent}{100}[/tex]

[tex]\frac{1860}{100} =\frac{100x}{100}[/tex]

[tex]\frac{1860}{100}[/tex]

[tex]x= 18.60[/tex]

Hence, Helen earn $18.60 in Commission.

[RevyBreeze]

Answer:

Helen earned 18.60 commission, thank me later! :)

You must follow the order of operations to find the value of a numerical expression. Why?​

Answers

Answer:

its so good out here whwere you frm


Jane has $1 and 6 quarters in her pile. Jeremiah has 10 quarters in his pile. If Jane gives
Jeremiah $1 and Jeremiah gives Jane 4 quarters, will the two piles still be equal in value? Explain

Answers

Yes, they will still be equal. 6 quarters is accumulated into $1.50 or with the addition of $1, 10 quarters. Therefore if Jane gives Jeremiah $1 or 4 quarters the values will stay equal.
Yes, they will still be equal because $1 is equal to 4 quarters so therefore they are just exchanging the same amount of money in different forms.

if you add 10 grams of sugar into 30 grams of 20% sugar syrup, you will make ..... grams of ....% sugar syrup.

Answers

Answer:

40 grams of 40% sugar syrup

Step-by-step explanation:

It is 40g because you are adding 10g of sugar to 30g of syrup

It is 40 % syrup because you start out with 20% sugar in 30 g. That means the 1/5 of the syrup is sugar. That means that 6g is sugar. Then you add ten more grams of sugar. Now you have 16g of sugar in 40 grams of syrup.

Make equation to find percent

16/40=x/100

x=40

If you add 10 grams of sugar into 30 grams of 20% sugar syrup, you will make 40 grams of 40% sugar syrup.

find the value of x.​

Answers

Answer:

x = 145

Step-by-step explanation:

The sum of the angles of a quadrilateral is 360

35+x+35+x = 360

2x+70 = 360

Subtract 70 from each side

2x+70-70 = 360-70

2x = 290

Divide by 2

2x/2 =290/2

x = 145

Answer:

x=145

(145+145+35+35=360)

Step-by-step explanation:

This question is very simple to answer if you remember that all parallelograms have two pairs of equal and opposite angles, and that the four angles in any quadrilateral must add up to 360 degrees.

Use the fact that the quantity of a radioactive substance after t years is given by
q = q0(2−t/k),
where q0 is the original amount of radioactive material and k is its half-life (the number of years it takes for half the radioactive substance to decay).

The half-life of strontium-90 is 25 years. Find the amount of strontium-90 remaining after 20 years if
q0 = 87 kg.
(Round your answer to the nearest kg.)

Answers

Answer:

  50 kg

Step-by-step explanation:

Put the given numbers into the given formula and do the arithmetic.

  q = q0(2^(-t/k))

  q = (87 kg)(2^(-20/25)) = (87 kg)(0.574349)

  q ≈ 50 kg

The amount remaining after 20 years is about 50 kg.

What is the area of a circle with a diameter of 36 millimeters

Answers

Answer:A≈1017.88

Step-by-step explanation:

Answer:

A = 1017.88

Step-by-step explanation:

srry if its wrong ;-;

Need help on these two please

Answers

Answer:

Given below.

Step-by-step explanation:

Q.1.

[tex]ln\left(4\right)+\:ln\left(x\right)=ln\left(24\right)[/tex]

apply ln rules:

[tex]ln( 4 * x) = ln (24)[/tex]

cancel ln from both sides:

[tex]4x = 24[/tex]

divide both sides by 4:

[tex]x = 6[/tex]

Q.2.

[tex]2ln\left(x\right)=ln\left(4\right)+ln\left(9\right)[/tex]

apply ln rules:

[tex]ln\left(x^2\right)=ln\left(4*9\right)[/tex]

cancel ln from both sides:

[tex]x^2 = 36[/tex]

[tex]x = \pm6[/tex]

as ln cannot be negative:

[tex]x = 6[/tex]

Several students named their favorite flavor gum. Write the ratio that compares the
number who chose fruit to the total number of students. Write in all 3 ways.

Answers

Answer:

12. 5

11.

10

10

15. 7

14. 11

2

=

16

16

18. 3

+

11

17

3

4

co

loo

8

Step-by-step explanation:

12. 5

=.

10

10

15. 7

14. 11

35% of what number is 105?

Answers

Answer:

35 percent of 105 is 36.75 .

HELP IM DESPRITE
A furniture designer has less than 175 minutes to spend painting her designs each day. Today, she has spent 45.5 minutes painting a table. Now she will paint x shelves, each of which takes 15.5 minutes.

What is the maximum number of shelves the designer can paint?

Enter your answer in the box.

Answers

Answer:

8

Step-by-step explanation:

45.5 + 15.5x < 175

15.5x < 129.5

x < 8.35

Answer: 8

lots of points for correct answer!

Gina plotted the points (-3, 4), (4, 4), (-3, -2), and (4, -2) on the coordinate plane.





Determine the height of the quadrilateral. -

Determine the length of the quadrilateral. -

What shape do the points form?

What is the area of the quadrilateral?

What is the perimeter of the quadrilateral?

Answers

Answer:

height: 6 unitslength: 7 unitsshape: rectanglearea 42 square unitsperimeter: 26 units

Step-by-step explanation:

Height

The height of it is the distance between the bottom and the top. You can count grid squares (6), or you can subtract y-coordinates:

  4 -(-2) = 4 +2 = 6

The height of the figure is 6 units.

__

Length

The length is the difference between the left side and the right side. Once again, you can count grid squares (7), or you can subtract x-coordinates:

  4 -(-3) = 4 +3 = 7

The length of the figure is 7 units.

__

Shape

The two upper points are on the same horizontal line, as are the two lower points. The two left-side points are on the same vertical line, as are the two right-side points. Vertical and horizontal lines are at right angles, so all of the corner angles are 90°. The quadrilateral is a rectangle.

__

Area

The area of the quadrilateral is the product of its length and height:

  A = LH

  A = (7 units)(6 units) = 42 units²

The area is 42 square units.

__

Perimeter

The perimeter is the sum of the lengths of the four sides. There are to sides that are 6 units long, and 2 sides that are 7 units long.

  P = 2(6 +7) = 26

The perimeter is 26 units.

plsss help!!!!! Mhanifa​

Answers

Answer:

See below

Step-by-step explanation:

Total number of ornaments:

24 + 12 + 8 + 19 = 63

a)

P(gold) = gold / total = 12/63 = 4/21

b)

P(silver) = silver/total = 24/63 = 8/21

c)

P(gold or silver) = (12 + 24)/63 = 36/63 = 4/7

Answer:

8)

total ornament: 24 + 12 + 8 + 19 = 63

a. probability its a gold ornament: [tex]\frac{12}{63}[/tex] → [tex]\frac{4}{21}[/tex]

b. probability its a silver ornament: [tex]\frac{24}{63}[/tex] → [tex]\frac{8}{21}[/tex]

c. probability she will get gold or silver ornament:   [tex]\frac{24}{63}[/tex] +  [tex]\frac{12}{63}[/tex] = [tex]\frac{4}{7}[/tex]

MULTIPLE CHOICE QUESTION
SOLVING SYSTEMS OF EQUATIONS BY ELIMINATION
(5x-y=74

x + 4y = 14

2x=y=5

7x+2y=-10


Which of the following will be the new
equation when the top equation
is multiplied by 4?

5x-4y=7

20x-4y=7

20x-4y=28

5x-y=28

Answers

Answer:

It will be: ( 5x - y =7 )4

20x - 4y = 28

Option (C)

10. There are 100 patients willing to join a study trying out a new drug for high
blood pressure. Of these participants, 42 are male and 58 are female. If two
people are chosen at random, what the probability that both are female?

Answers

Answer:

551/1650

Step-by-step explanation:

(58/100)(57/99)=551/1650

Question is on the photo

Answers

Answer:

12 cm, 7 cm, 5 cm will not make a triangle

Step-by-step explanation:

The Triangle Length Theorem states that the sum of the lengths of any two sides of a triangle is greater than the length of the third side. 7 + 5 = 12 which isn't greater than 12.

what is the relationship between slope and unit rate?​

Answers

Answer:

For an equation such as y = 2.6x, the slope is the unit rate, which is the coefficient of x. For a table, the change in y divided by the change in x is the unit rate, or slope.

A daycare charges a base fee of $25 per week plus $3/hour for a child.

Write an equation that relates the weekly charge C (in dollars) to the number, x, hours, that a child is in daycare​

Answers

Given :-A daycare charges a base fee of $25 per week plus $3/hour for a child.

To Find :-To write a equation that relates the weekly charge C (in dollars) to the number, x, hours, that a child is in daycare .

Solution :-

According to the question ,

The base price is $25 per week . And per hour charge is $3/hour .

So as per the question if we assume that the babysitter looked after the child for x hours in a week then , the total charge will be ,

→ Charge = $3/hr * x hr= $3x

So the total cost for a week , will be ,

→ Total cost = Base price + Charge

→ Total cost = $25 + $3x

And in the question we are told to assume total cost to be $C . Therefore ,

→ $C = $ (25 +3x)

C = 25 + 3x

Hence the required equation is C = 25 + 3x.

I hope this helps.

Find the area of the shaded region.

Answers

Answer:

56

Step-by-step explanation:

8 x 8 = 64

4 x 4 = 16

16/2 = 8

64-8 =56

i really need help please

Answers

Answer: -3w^3y^2
The answer is the third option

How do you do this? Please help.​

Answers

So the purple and red ones on top should be switched and the orange and green ones on the bottom should be switched. The two blue ones in the corners are correct.

calculate each of the following
9/25÷3/50​

Answers

Answer:

6

Step-by-step explanation:

First divide 9 by 25 to get 0.36 and then divide 3 by 50 to get 0.36 . Finally divide the first result which os 0.36 by the second result which is 0.06 to get 6

please help with step by step. ​

Answers

Answer:

60 ÷ 15

= 4 mins

the constant of proportionality for the number of 4 minutes to read 1 page.

Almost all medical schools in the United States require students to take the Medical College Admission Test (MCAT). The total score of the four sections on the test ranges from 472 to 528. In spring of 2019, the mean score was 500.9, with a standard deviation of 10.6.
Find the median of the MCAT scores.

Give your answer to three decimal places.

Answers

Using the normal distribution, it is found that the median of the MCAT scores was of 500.9.

Normal Probability Distribution

In a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

It measures how many standard deviations the measure is from the mean. After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.The median is also the 50th percentile, hence, in the normal distribution, it is equals to the mean.

In this problem, the mean score was 500.9, hence the median score was also of 500.9.

You can learn more about the normal distribution at https://brainly.com/question/24663213

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