A bag contains 5 white marbles and 30 blue marbles. If a representative sample contains 2 white ​marbles, then how many blue marbles would you expect it to​ contain? Explain. Because the ratio of white marbles to blue marbles is ▼ 6:5 6:1 5:6 1:6 in the​ population, the expected number of blue marbles is nothing times the number of white marbles in the representative sample. There should be nothing blue marbles.

Answers

Answer 1

Answer:

6:1

Step-by-step explanation:

Answer 2

Answer: 10

Step-by-step explanation:

The expected number of blue marbles in the representative sample is 10. This is because the ratio of white marbles to blue marbles in the population is 5:6, so for every 5 white marbles there are 6 blue marbles. Since the representative sample contains 2 white marbles, the expected number of blue marbles should be 6 times the number of white marbles, or 6 x 2 = 10.


Related Questions

The graph below shows a company's profit f(x), in dollars, depending on the price of goods x. in dollars, being sold by the
company:


Part A: What do the x-intercepts and maximum value of the graph represent?

Part B: What are the intervals
where the function is increasing and decreasing, and what do they represent about the sale and
profit?

Part C: What is an approximate average rate of change of the graph from x = 1 to x = 3, and what does this rate represent?

Answers

Answer:

What do the x-intercepts and maximum value of the graph represent? The x-intercepts represent the points at the ground, so with that you have the width of the tunnel at ground level is 120 ft - 0 ft = 120

Step-by-step explanation:

$1,000 at 7.5% for 30 months

Answers

Step-by-step explanation:

principal=1000

rate=7.5

time=30 moths

interest= principal multiplied to rate multiplied to time by 100

which give 100multiplied to 7.t multiplied to 30 by 10p

which gives 22500by 100

which gives 225

amount= interest plus principal

= 225+1000

=1225

FIND THE AREA OF THE SHAPE *


30 POINTS!!

Answers

Answer:

34 cm²

Step-by-step explanation:

Area of trapezoid formula:

A = 1/2(b1 + b2)h

Substitute values and find the area:

A = 1/2(5 + 12)*4 = 34 cm²

Answer:

34

Step-by-step explanation:

Given the trapezoid formula:

1/2(b1+b2) x h

The first step is to find the bases and height.

1/2(12+5) x 4

The second step is to do what is in the parentheses.

12+5=17

The third step is to divide 17 and 2.

17÷2=8.5

The last step is to Multiply 8.5 and 4.

8.5 x 4 = 34

So your answer is 34 centimeters.

If you subtract 17 from my number and multiply the difference by -6, the result is 138. What is the number?

Answers

Answer:

Your number is -6

Step-by-step explanation:

-6 - 17 = -23

-23 x -6 = 138

What is the sum of the degree measures of the complement and the supplement of a 16° angle?​

Answers

Answer:

270?

Step-by-step explanation:

180 + 90 = 270

Anne solved 5(2x−3)=20x+15 for x by first multiplying 5 and 2x on the left side of the equation. She got the answer x = −95. When she substituted −9/5 into the original equation her answer was incorrect. Explain Anne’s error, and find the correct answer.

Answers

Answer:   x=-3

Step-by-step explanation:

Anne's error is that she only multiplies 5 and 2x on the left side, she needs to multiply 5 and 2x, and also that she needs to multiply 5 and -3.

5(2x−3)=20x+15

5(2x) + 5(-3) = 20x + 15

10x - 15 = 20x + 15

-10x - 15 = 15

-10x = 30

x = -3

another question of the homework

Answers

Answer:

Jessica's trains travels at a faster speed

Step-by-step explanation:

From the question,

Using the graph,

The total distance distance traveled by Khalid after 2 hours is

d = 280 mi.

S = d/t....................... Equation 1

Where S = Khalid's speed, d = Khalid's distance, t = time.

S = 280/2

S = 140 mph.

From the euqation,

The total distance traveled by Jessica after 2 hours is

y = 150×2

y = 300 mi.

Also Using

S' = d'/t

Where S' = Jessica's speed, d' = Jessica's distance

S' = 300/2

S' = 150 mph.

From the above, Jessica's trains travels at a faster speed

A sandwich store charges $20 to have 3 turkey subs delivered and $26 to have 4 delivered. The total includes the cost of each sub, plus the delivery fee.

Answers

Answer:

cost of each sub = $6, delivery fee = $2

Step-by-step explanation:

Let $x be the cost of each sub and $c be the delivery fee

3x + c = 20

4x + c = 26

x = 6, c = 2

find the real zeros of k(x)= x^3 - 2x^2 +2x -4

Answers

Answer: k=x^3-2x^2+2x-4/x

Step-by-step explanation: hope this helps!

A circular swimming pool has a radius of 20 feet. A fence is going to be built so that there is a 4-foot space around the entire pool. What is the length of the fence? Sunitha solved the problem as shown. A circle with radius 20 feet. A larger circle is 4 feet larger than the smaller circle. Radius = 24 feet. Circumference = 24 pi. What was her error? She should have used 12 in the formula, not 24. She forgot to multiply the radius by 2 in the formula. She did not add the additional fence length to the pool’s radius. She should have used 4 ft in the formula.

Answers

Answer:

she forgot to multiply the radius by 2 in the formula (B)

Step-by-step explanation:

i got it right :)

Answer:

B.

Step-by-step explanation:

The measure of EFH is twice the measure of GFH. What is the
degree measure of GFH?
I NEED HELP ASAP

Answers

Answer:

30° =  m∠GFH

Step-by-step explanation:

Since ∠EFH and ∠GFH are complementary, the sum of their measures i 90.

Let x = m∠GFH

2x = m∠EFH

m∠GFH + m∠EFH = 90

x + 2x = 90

3x = 90

x = 30° =  m∠GFH

Answer: 30

Step-by-step explanation: qu i z i zz


Frodo goes to New Army and buys two pairs of jeans for $19.99 each, 3 shirts at $7.99 each, and a pack of socks for $5. He has a
coupon for 25% off his entire purchase. Sales tax is 7 %. What is the total cost after the discount and tax? $
109points plsss helpppppp now

Answers

Answer:

lol i answered on another 1 of ur things

Suppose John is a 14-year-old boy who weighs 45 kg (100 lbs). John is at the 25thpercentile of weight for his age. Twenty-five percent of 14-year-old boys weigh the same or less than John and 75% weigh more than John. If John’s height is 170 cm (almost 5’7”), he is at the 75thpercentile of his height for age. Based on the informationgiven about John, how would you describe John’s general appearance?

Answers

I’d say John is a pretty skinny boy who doesn’t have too much height on him. he doesn’t appear to have much muscle on him or excess weight.

Identify a, h, and k for the equation

Answers

83865
Happy birthday

Dan is ordering boxes of chocolate from a web site. Each box costs $15. Shipping costs $5 for any order. Dan wants to spend no more than $145. Create an inequality.

Answers

Answer:

15x + 5 = (equal to) 145

or

15x + 5 < (less than) 145

Step-by-step explanation:

x = how many boxes of chocolate Dan gets in total

Hellohello, if you able to help me then please do. (:

Answers

Answer:

7 + 1.5 = 8.5

Step-by-step explanation:

hopefully i got that right

[tex]y= 82(1.045)[/tex]What is the rate of growth Michael expects each week after launching the website?

y=82(1.045)

Answers

Answer: pls help with the answer this is hard

Step-by-step explanation: i really need help!!!

Simplify and leave in radical form.

Answers

Answer:

Step-by-step explanation:

Expressing in simplest radical form just means simplifying a radical so that there are no more square roots, cube roots, 4th roots, etc left to find. It also means removing any radicals in the denominator of a fraction.

mark me as brill

PLEASE HELP ME I’LL GIVE BRILLIANCE TO YOU

Answers

Answer:

y=-2x+8

Step-by-step explanation:

y intercept is at 8, and there is a decrease in 2x per 1y

Answer:

the answer is the second one do nitrotype. com

Step-by-step explanation:

get rid of the space in .com

hi please answer this xoxo will mark brainliest

Answers

since isosceles has 2 sides that are equal then,

270 - 108 = 162

divide 162 by 2

162 ÷ 2 = 81

so, C

Answer:

A.)

Step-by-step explanation:

108 + 100 + 62 = 270

Using diagonals from a common vertex, how many triangles could be formed from a
24-gon?

Answers

Answer:

22 triangles in a 24-gon.

Step-by-step explanation:

24−2=22

There are 22 triangles in a 24-gon.

Answer:

13 triangles in a 15-gon

Step-by-step explanation:

15-2=13

At practice, Diego does twice as many push-ups as Noah, and also 40 jumping
jacks. He does
62 exercises in total. The equation 2x + 40 =62 describes this situation. What does
the
variable represent?

Answers

Answer:

1980

Step-by-step explanation:

5x4*x9=1980

Hope this helps :)

Brainliest?

。◕‿‿◕。 ITS PICKACHU  DAY

what is the vertex of the quadratic function below y=1/2 x^2 +x+3

Answers

Answer: the vertex is 1,7/2

Step-by-step explanation: this is the answer because first you label the first one a the second one b and the last one c then if you find the axis of symmetry by doing [tex]\frac{-b}{2(a)\\}[/tex] you will have your x for the vertex then plug in your x into the equation where ever there is a x tat where you plug it in then you will have the right answer... I hoped this help

Find the circumference of a circle with radius, r =
18.5m.
Give your answer in terms of pi

Answers

Answer: C≈116.24

Step-by-step explanation:

C=2πr=2·π·18.5≈116.23893


[tex] \sqrt{40} [/tex]

Answers

Answer:

√40 = 2√10=6.32455532034

Answer:

2✓10

Step-by-step explanation:

Assuming you'd like to simplify:

✓4✓10

2✓10

Quadrilateral ABCD is inscribed in a circle. Find the measure of each of the angles of the quadrilateral. Show
your work.

Answers

Answer:

A= 94°, B = 102°, C = 86°, D = 78°

Step-by-step explanation:

ABCD is a cyclic quadrilateral

It has the property that opposite angles are supplementary: A with C and B with D.

Solve following for x:

x + 6 + x - 2 = 180°2x + 4 = 180°2x = 176°x = 88°

The angles are:

A = 88° + 6° = 94°C = 180° - 94° = 86°D = 88° - 10° = 78°B = 180° - 78° = 102°

Some students want to order shirts with their school logo, The Tees company charges $9.65 per shirt
plus a setup fee of $43. The Shirtz company charges $8.40 per shirt plus a $58 fee. Which company
would you recommend to the students?

Answers

This is the equations,
Tee Company: 9.65x + 43
Shirtz Company: 8.40x + 58
If you were to buy one shirt from each company these would be the prices,
Tee Company: $52.65
Shirtz Company: $66.40
I would recommend the Tee Company since the price per shirt is cheaper.

The length of adult King Cobra snakes is normally distributed with µ = 18 feet and σ = 2.1 feet. What is the probability that a randomly selected adult King Cobra snake be over 15.9 feet long? 85.54% 79.08% 15.87% 84.13%

Answers

Answer:

the probability that a randomly selected adult King Cobra snake be over 15.9 feet long is 84.13%

Step-by-step explanation:

The computation of the probability is shown below":

P(x>15.9) is

[tex]= P (\frac{x - \mu}{\sigma} > \frac{15.9 - 18}{2.1} )\\\\= P (z>-1)\\\\= 0.8413\\\\= 84.13\%[/tex]

Hence, the probability that a randomly selected adult King Cobra snake be over 15.9 feet long is 84.13%

We simply applied the above formula

Answer:

the probability that a randomly selected adult King Cobra snake be over 15.9 feet long which is 84.13%

Step-by-Step Explanation:

P(X 15.9). Solve for the z-score and then match it with the probability from the area under the normal curve table. Once that is found, take the complement or use symmetry to solve

Note:

Hope this helps you in the future.

Learn More:

https://brainly.com/question/6305087?referrer=searchResults

What are the ratios of sine, cosine, and tangent for angle Y? sin(Y) = StartFraction X Z Over X Y EndFraction; cos(Y) = StartFraction Y Z Over X Z EndFraction; tan(Y) = StartFraction Y Z Over X Y EndFraction sin(Y) = StartFraction X Y Over X Z EndFraction; cos(Y) = StartFraction X Z Over X Y EndFraction; tan(Y) = StartFraction Y Z Over X Z EndFraction sin(Y) = StartFraction X Z Over X Y EndFraction; cos(Y) = StartFraction Y Z Over X Y EndFraction; tan(Y) = StartFraction X Z Over Y Z EndFraction sin(Y) = StartFraction Y Z Over X Y EndFraction; cos(Y) = StartFraction X Z Over X Y EndFraction; tan(Y) = StartFraction X Z Over Y Z EndFraction

Answers

Answer:

[tex]\sin Y= \frac{XZ}{XY}[/tex]

[tex]\cos Y= \frac{YZ}{XY}[/tex]

[tex]\tan Y= \frac{XZ}{YZ}[/tex]

Step-by-step explanation:

Given

See attachment for triangle

Required

Find [tex]\sin, \cos[/tex] and [tex]\tan[/tex] of angle Y

For angle Y:

[tex]Opposite = XZ[/tex]

[tex]Adjacent = YZ[/tex]

[tex]Hypotenuse = XY[/tex]

The [tex]\sin[/tex] of an angle is calculated as:

[tex]\sin\theta = \frac{Opposite}{Hypotenuse}[/tex]

So:

[tex]\sin Y= \frac{XZ}{XY}[/tex]

The [tex]\cos[/tex] of an angle is calculated as:

[tex]\cos\theta = \frac{Adjacent}{Hypotenuse}[/tex]

So:

[tex]\cos Y= \frac{YZ}{XY}[/tex]

The [tex]\tan[/tex] of an angle is calculated as:

[tex]\tan\theta = \frac{Opposite}{Adjacent}[/tex]

So:

[tex]\tan Y= \frac{XZ}{YZ}[/tex]

Answer:

c

Step-by-step explanation:

URGET: Inscribed Angles
Find the measure of angle R.

Answers

Answer:

∠ R = 50°

Step-by-step explanation:

The inscribed angle R is half the measure of its intercepted arc QS

QS = 360° - (120 + 140)° = 360° - 260° = 100° , then

∠ R = 0.5 × 100° = 50°

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