There are 12 red balls and 7 green balls in a
non-transparent black bag. What is the
least number of balls we need to take out to be certain we have taken out the
following?
two green or two red balls

Answers

Answer 1

The least number of balls we require to take out to be sure that we have two green or two red balls is 14.

What is the combination of balls?

In the bag, there are a total number of balls of;

Total number of balls = 12 + 7 = 19 balls

Inside the bag, we have 12 red balls and 7 green balls.

The balls are selected without replacement, and this means that they are removed from the bag, and replaced back.

In theory, we could pick 12 balls, and all 12 being red, while also 13, with 12 red and 1 green e.t.c

Therefore, at least 14 balls are needed to guarantee that there are at least 2 green or two red balls

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Related Questions

Let f(x) = 4 + 2x and g(x) = 1/2x + 2 . Find f(g(x)) . Simplify the expression.

f(g(x)) = ___

Answers

Answer:  x + 8

Step-by-step explanation:

[tex]f(g(x))=f(\frac{1}{2}x+2) = 4+2(\frac{1}{2}x+2) = 4+x+4 =x +8[/tex]

Q4. Write (5-√5)² in the form a + b√5, where a and b are
integers.

Answers

(5-√5)² in the form a + b√5 can be written as 30 - 10√5 where, the integers a and b are 30 and -10 respectively.

What is integer?

Positive, negative, and zero are all examples of integers. The Latin word "integer" means to "whole" or "intact." Therefore, fractions and decimals are not included in integers. In this essay, we will learn more about integers, their definition, and their characteristics.

We know that,

[tex](a-b)^2= a^2 + b^2 - 2ab[/tex]

Using this mathematical identity, putting the values from question,

(5-√5)² = 5² + √5² - 2(5)(√5)

(5-√5)² = 25 + 5 - 10√5

(5-√5)² = 30 - 10√5

This is in the form a + b√5 where, the integers a and b are 30 and -10 respectively.

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Identify the values of the variables. Give your answers in simplest radical form. Help!

Answers

Considering the right angle triangle given the values of the variables are

n = 2√3k = 4√3How to determine the values of the variables

Information from the question

right angle triangle

The values of the variables is worked using SOH CAH TOA

The right angle triangle of sides as described below

hypotenuse = k

opposite = n

adjacent = 6

The variable n is solved using tan, TOA, the angle is 30

tan 30 = Opposite / Adjacent

tan 30 = n / 6

tan 30 * 6 = n

n = 2√3

The variable k is solved using cos, CAH, the angle is 30

cos 30 = Adjacent / Hypotenuse

cos 30 = 6 / k

k = 6 / cos 30

k = 4√3

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3
8
13
24
53
123
213

Answers

Answer:

321 is the next number that comes in the calculator.

Solve the inequality and enter your solution as an inequality comparing the
variable to the solution.
-18+x< 16
Answer here

Answers

Solution of the given inequality -18 + x < 16 is equal to x < 34.

As given in the question,

Given inequality is equal to :

-18 + x < 16

Get the value of the variable x by adding 18 both the side of the inequality we get,

-18 + x + 18 < 16 + 18

Collect all like terms together we get,

⇒ x + (-18 + 18 ) < 34

⇒ x + 0 < 34

Solution of the inequality -18 + x < 16 is given by

⇒ x < 34

For the given inequality -18 + x < 16 the value of variable x is less than 34.

Therefore, solution of the given inequality -18 + x < 16 is  x < 34.

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6 x (2/3 divided by 2) + 0.5

Answers

The given expression has a value of 2.5.

The BODMAS rule is named after the letters in the acronym: B - Brackets, O - Order of powers or roots, D - Division, M - Multiplication. A stands for addition, and S stands for subtraction. According to the BODMAS rule, mathematical statements having several operations must be solved from left to right in the BODMAS order.

Given expression 6 x (2/3 divided by 2) + 0.5

To solve this expression, we must employ the BODMAS rule.

First 2/3 divided by 2

(2/3)/2

= 1/3

Now multiply 1/3 with 6

= 1/3 x 6

= 2

Now add both 2 and 0.5

= 2 + 0.5

= 2.5

Therefore the value of the given expression is 2.5

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Factor 18p-3618p−3618, p, minus, 36 to identify the equivalent expressions.
Choose 2 answers:
Choose 2 answers:

(Choice A)
A
3(9p-12)3(9p−12)3, left parenthesis, 9, p, minus, 12, right parenthesis

(Choice B)
B
9(2p-4p)9(2p−4p)9, left parenthesis, 2, p, minus, 4, p, right parenthesis

(Choice C)
C
2(9p-18)2(9p−18)2, left parenthesis, 9, p, minus, 18, right parenthesis

(Choice D)
D
18(p-2)18(p−2)

Answers

After simplification, the equivalent expression is 18(p-2). So the option D is correct.

In the given question,

We have to find factor 18p-36 equivalent expressions.

The given option is

A. 3(9p-12)

B. 9(2p-4p)

C. 2(9p-18)

D. 18(p-2)

The given expression is 18p-36.

We simplify the given expression to find their equivalent expression.

To simplify the expression we take out the common term from both terms.

We can see that 18 is a common multiply of both number 18 and 36. SO we take out 18 from both terms.

Taking common 18

18p-36 = 18(p-2)

Hence, the equivalent expression is 18(p-2). SO the option D is correct.

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What is the quotient of 30 and 0.08

Answers

Answer:

30 divided by 0.08 will get you 375

Step-by-step explanation:

Simplify 2.54 + 1.5 × 4

Answers

The answer i got was 8.54

There are 121 boys and 116 girls signed up for a trip to an amusement park. The leader first makes groups of 9 students each and then assigns any remaining students to make some of the groups have 10 students. Part A How many groups of 10 students will there be? Explain. Part B How many groups of 9 students will there be? Explain.​

Answers

The remainder is the amount "leftover" after performing some computation.

Hence,

(A) There are [tex]4[/tex] groups out of [tex]10[/tex] students.

(B) There are [tex]33[/tex] groups of [tex]9[/tex] students.

What is a remainder?

The remainder is the amount "leftover" after performing some computation. In arithmetic, the remainder is the integer "leftover" after dividing one integer by another to produce an integer quotient.

Here given that,

The strength of boys is [tex]121[/tex]

The strength of girls is [tex]116[/tex]

So, the total number of students are

[tex]121+116=337[/tex]

The leader first makes groups of [tex]9[/tex] students and then assigns any remaining students to make some of the groups have [tex]10[/tex] students.

So we divide by [tex]9[/tex] to find out the remainder and the total number of groups are:-

[tex]\frac{337}{9}=37[/tex]

and the remainder value is [tex]4[/tex].

Therefore, there are [tex]37[/tex] groups in the total out of which [tex]4[/tex] are out of [tex]10[/tex]students.

So,

[tex]\frac{37}{4}=33[/tex] groups are of [tex]9[/tex] students.

Hence,

(A) There are [tex]4[/tex] groups out of [tex]10[/tex] students.

(B) There are [tex]33[/tex] groups of [tex]9[/tex] students.

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Find the area of the following figure:

(Use π=3.14 when finding your final answer. Do not round and Do not enter units!)


Area = _______ mm²

Answers

Answer:

521 mm2

Step-by-step explanation:

Formulas:

area of circle= 3.14 x radius x radius

area of semicircle = 0.5 x 3.14 x radius x radius

diameter of circle= 20mm

radius=0.5x20mm=10mm

area of trapezium= 0.5 x (base+base) x height

Working:

area of semicircle= 0.5 x 3.14 x 10mm x 10mm = 157mm2

area of trapezium = 0.5 x (20mm+32mm) x 14mm = 364mm2

total area of figure= 157mm2 + 364mm2 =521mm2

Members of the student government are planning a movie night on campus. They have asked a random sample of students which of four movies the student would prefer. Here are the results Movie A- 31 students, Movie B- 27 students, Movie C- 34 students, Movie D- 28 students. There are 900 students total on campus. Based on the above information, how many students on campus would we expect to prefer Movie C? Round your answer to the nearest whole number. Do not round any intermediate calculations

Answers

There are 255 students who prefer Movie C.

In the given case, the total number of students in the campus = 900

Number of students in the random sample :

= 31 + 27 + 34 + 28

= 120

Number of students who prefer to watch movie C in the chosen sample:

= 34

To get number of students who would prefer to watch the movies C in the total population of 900, we can extrapolate the data from the chosen sample to the entire population.

Thus, number of students expected to prefer movie C in the campus =

34/120 × 900

= 255

Hence the expected number of students are 255.

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Calculate the number of different three-course meals a patron could choose from at the Butcher Shop Steakhouse during Restaurant Week. What conditions had to be met for you to calculate the number of different outcomes for this experiment?

Answers

The probability of getting watermelon is 3/58.

The given values are

A pineapple chew was selected 53 Times

A lemon chew was selected 2 times

A watermelon chew was selected 3 times

The probability that you Bella remove from the bag is pineapple chew.

probability is which we can't predict actual it is usually about the prediction

As we know

probability - expected outcome/total outcome

The question Bela perform experiment 58 times then the total outcome will be 58 if you pineapple was selected 53 times the probability of the chew Bella pick of pineapple is 53/58

The probability of Bella pick chew of lemon -2/58

The probability of Bella pick watermelon is - 3/58

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11/7 Thursday Math Math Hw. Fractions

Answers

Answer:

96, $ 144

Step-by-step explanation:

2(x+5)=20 what does x===???????????????????/

Answers

Answer:

x = 5

Step-by-step explanation:

2(x+5) =20  Distribute the 2

2(x) + 2(5) = 20

2x + 10 = 20  Subtract 10 from both sides of the equation

2x = 10  Divide both sides by 2

x = 5

Answer:

5

Step-by-step explanation:

2(x + 5) = 20 Divide both sides by 2

x + 5 = 10

x = 10 - 5

x = 5

This question number 7 and I need help

Answers

The product of two numbers exists done by multiplying a number with the other. The product of a number x and 7 exists 7x.

What is meant by product?

The result of multiplying two or more numbers together is known as a product in mathematics. A number that is obtained by multiplying two or more other numbers together is referred to in mathematics as a product.

The outcome of one or more multiplications is referred to as a "product." For instance, the mathematical statement "times equals" would be written with the multiplier, the multiplicand, and their product as the variables.

Let the variable be x

x be a number

So, the product of x and 7 exists calculated as:

Product = 7 × x

Product = 7x

Therefore, the product of a number (x) and 7 exists 7x.

The complete question is:

The product of a number and 7

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Find sin D, sin E, cos D, and cos E. Write each answer as a fraction in simplest form.

line ED =45
line DF = 27
line EF = 36

sin D =
sin E =
cos D =
cos E =

Answers

The value of each term is

sin D = 4/5sin E = 3/5cos D = 3/5cos E = 4/5

The length of the line ED = 45 units

The length of the line DF = 27 units

The length of the line EF = 36 units

Here we have to use the trigonometric function

sin θ = Opposite side / Hypotenuse

cos θ = Adjacent side / Hypotenuse

Substitute the value in the equation

sin D = Opposite side / Hypotenuse

= 36/45

= 4/5

sin E = Opposite side / Hypotenuse  

= 27/45

= 3/5

cos D = Adjacent side / Hypotenuse

= 27/45

= 3/5

cos E = Adjacent side / Hypotenuse

= 36/45

= 4/5

Hence, the value of each term is  

sin D = 4/5sin E = 3/5cos D = 3/5cos E = 4/5

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what percent is 25 of 100

Answers

if we take 25 to be the 100%, what is 100 off of it in percentage?

[tex]\begin{array}{ccll} amount&\%\\ \cline{1-2} 25 & 100\\ 100& x \end{array} \implies \cfrac{25}{100}~~=~~\cfrac{100}{x} \\\\\\ \cfrac{1}{4}=\cfrac{100}{x}\implies x=400[/tex]

Answer:

25

Step-by-step explanation:

25/100=.25x100=25

Please help!! See screenshot attached below (100 pts)

Answers

Answer:

f(2) = 0

Step-by-step explanation:

Factor Theorem

If f(x) is a polynomial, and f(a) = 0, then (x – a)  is a factor of f(x).

Therefore, applying the factor theorem, if (x - 2) is a factor of a polynomial f(x) then f(2) = 0.

Colton made a scale drawing of a city park. In real life, the soccer field is 90 meters long.
It is 18 millimeters long in the drawing. What scale did Colton use?

Answers

By using unitary method it is obtained that -

Scale used my Colton = 1 : 500

What is unitary method?

Unitary method is the process in which the value of single unit can be calculated from the value of multiple unit and the value of multiple unit can be calculated from the value of single unit. Sometimes Value of single unit can be less than the value of multiple unit. For example - The relation between the cost of a commodity and the quantity of the commodity

Sometimes Value of single unit can be more than the value of multiple unit. For example - The relation between the number of men and the number of days taken by those men to do a certain job.

Here unitary method is used

18 mm long field in the drawing is equivalent to 9000 mm long field in real

1 mm long field in the drawing is equivalent to [tex]\frac{9000}{18}[/tex] mm long field in real

1 mm long field in the drawing is equivalent to 500 mm long field in real

Scale used by Colton 1 : 500

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Which of the following is the correct factorization 64x^3+8?

Answers

The correct factorization of the expression, [tex]64x^{3} +8[/tex], is 4[tex](2x-1)^{2}[/tex] (8x+2).

According to the question,

We have the following information:

[tex]64x^{3} +8[/tex]

The factors of this expression can be found using identity because 64[tex]x^{3}[/tex] is the whole cube of 4x and 8 is the cube of 2.

So, we have the following expression:

[tex](4x)^{3} + 2^{3}[/tex]

Now, we can use the following identity to factor the given expression:

[tex]a^{3} +b^{3} = (a+b) (a^{2} -ab+b^{2} )[/tex]

We have a = 8x and b = 2:

(8x+2) {[tex](4x)^{2}[/tex]-16x+[tex]2^{2}[/tex]}

(8x+2) (16[tex]x^{2}[/tex]-16x+4)

Taking 4 as the common factor from the second bracket:

4(8x+2) (4[tex]x^{2}[/tex]-4x+1)

Now, finding the factors of second bracket:

4(8x+2) ([tex]4x^{2}[/tex]-2x-2x+1)

4(8x+2) {2x(2x-1)-1(2x-1)}

4(8x+2) (2x-1) (2x-1)

4[tex](2x-1)^{2}[/tex] (8x+2)

Hence, the correct factorization of the expression, [tex]64x^{3} +8[/tex], is 4[tex](2x-1)^{2}[/tex] (8x+2).

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( q2 − r2s) ( q4 + q2r2s + r4s2)

Answers

-r^6 s^3+q^6

Hope it helps

Using the calculator below, substitute the values to calculate the interest amount on a the loan using the compound interest formula. Principal: $4,000 time: 10 years rate: 7% number of compounding periods: 4 What is the amount of the compound interest? (interest only)

a. 2,800
b. 4,757
c. 4,006
d. 59,897​

Answers

answer : c) 4,006




A = $8,006.39
A = P + I where
P (principal) = $4,000.00
I (interest) = $4,006.39

explanation:
First, convert R as a percent to r as a decimal
r = R/100
r = 7/100
r = 0.07 rate per year,

Then solve the equation for A
A = P(1 + r/n)nt
A = 4,000.00(1 + 0.07/4)(4)(10)
A = 4,000.00(1 + 0.0175)(40)
A = $8,006.39

Summary:
The total amount accrued, principal plus interest, with compound interest on a principal of $4,000.00 at a rate of 7% per year compounded 4 times per year over 10 years is $8,006.39.

A margin of error tells us:

Answers

The margin of error tells you how many percentage points your results differ from the true population value.

What is margin of error?

The margin of error is a close guess at a given level of probability about the confidence interval. It is denoted as a tiny percentage that is allowed for in the event of an error.

The amount of uncertainty associated with a survey result is referred to as the margin of error. It indicates how confident you can be in the outcome's accuracy. A smaller margin of error indicates that your survey is more precise. A confidence level is the probability that a survey will yield the same results if repeated.

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hole me out on this thanks

Answers

Answer: [tex]5^{2} + 4[/tex]

Step-by-step explanation:

[tex]2 + 3^3[/tex] =?

2 + 27 = 29

10 * 2 - 9 = 20 - 9 = 11

[tex]5^2 + 4[/tex] = 25 + 4 = 29

[tex]5^3\\[/tex] = 5 * 5*5 = 125

3+ 4 * 3 = 3 + 12 = 15

How is Addy 4+ -4 similar to adding 4+4 how is it different use the words and models to explain

Answers

4- (+) (-4) is similar to 4+4 by the rule of addition in integers that is if Negative + Negative then Add the number and put the sign of greater number.

What is integer?

Zero, a positive natural number, or a negative integer denoted by a minus sign are all examples of integers. The inverse additives of the corresponding positive numbers are the negative numbers. An integer, pronounced "IN-tuh-jer," is a whole number that can be positive, negative, or zero and is not a fraction. Integer examples include: -5, 1, 5, 8, 97, and 3,043. 1.43, 1 3/4, 3.14, and other numbers that are not integers are some examples. Three categories of integers exist: Zero (0) (0) Good integers (Natural numbers) Integer Negatives (Additive inverse of Natural Numbers).

The rules of addition in integers says,

- + -  = +

by this,

4-(-4)=8

by concept of addition,

4+4=8

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A new student, who has had very little experience solving equations algebraically, has just joined your study group. Show and explain all of the steps necessary to solve the equation 2(x + 1) = 6(x – 1) for x. Be sure to include a step for checking the solution.

Answers

The solution of the equation 2(x + 1) = 6(x – 1), is the value of x = 2.

How to Solve an Equation?

To solve an equation means to find what the value of the variable of the equation would be that would make the equation true if the value of the variable is plugged into the equation.

The necessary steps taken to find the value of x in the equation, 2(x + 1) = 6(x – 1) are explained below:

2(x + 1) = 6(x – 1) [given]

Apply the distributive property

2x + 2 = 6x - 6

Combine like terms

2x - 6x = -2 - 6

-4x = -8

Divide both sides by -4

-4x/-4 = -8/-4

x = 2

The value of x is 2. To check the solution, plug in the value of x back into the equation:

2(2 + 1) = 6(2 – 1)

2(3) = 6(1)

6 = 6 [true]

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What are the corresponding angle pairs in the picture below?

Answers

The corresponding angles form the given figure are ∠1 and ∠5, ∠2 and ∠6, ∠4 and ∠8 and ∠3 and ∠7. Therefore, option D is the correct answer.

From the given figure, we need to identify the corresponding angles.

What are corresponding angles?

The corresponding angles definition tells us that when two parallel lines are intersected by a third one, the angles that occupy the same relative position at each intersection are known to be corresponding angles to each other.

From the figure, ∠1 and ∠5, ∠2 and ∠6, ∠4 and ∠8 and ∠3 and ∠7 are the corresponding angles.

The corresponding angles form the given figure are ∠1 and ∠5, ∠2 and ∠6, ∠4 and ∠8 and ∠3 and ∠7. Therefore, option D is the correct answer.

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For the equation (x) = –3x2 + 2x – 1, explain if the graph will be pointing upward or downward. **20 POINTS**

Answers

Answer:

Step-by-step explanation:

the answer is "downward". If you say "why", it is because of the degree coefficient.

in the equation, the latest degree is 2 (which is quadratic equation) so from the degree its coefficient is -3. If it is negative, it should be downward like -3. But if it is positive it should be upward like 3, 1, 44.

Visit each of the three credit reporting agencies and find an example of a credit report. For each, describe a different portion of the credit report
and how it is evaluated for credit worthiness.

Answers

Answer:

Doesn't make a lot of sense. Can you be more specific.

Step-by-step explanation:

The Creditworthiness is how a lender determines that you will default on your debt obligations, or how worthy you are to receive new credit

What are credit reporting agencies?

Credit reporting companies, also known as credit bureaus or consumer reporting agencies, are companies that compile and sell credit reports.

Given are three credit reporting agencies.

Creditworthiness is how a lender determines that you will default on your debt obligations, or how worthy you are to receive new credit. Your creditworthiness is what creditors look at before they approve any new credit to you. The 3 C's of credit worthiness are Character, Capacity and Capital. Creditworthiness is determined by several factors including your repayment history and credit score.

Therefore, the Creditworthiness is how a lender determines that you will default on your debt obligations, or how worthy you are to receive new credit.

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Observe a live classroom for at least 2 hours. Here are some things to look for; interactions between students and teachers, classroom expectations, classroom culture. Write a one-page summary of what you observe. The main function of prop roots in mangroves is toA. aerate the plantB. produce and store foodC. keep mangroves uprightD. absorb water far below the earth PLEASE HELP I WILL GIVE BRAINLIESTFind x and y*image is linked below* Use the sample data and confidence level given below to complete parts (a) through (d). A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll, n=990 and x=581 who said "yes." Use a 95% confidence level. Calculate the length of the unknown side of this right-angled triangle.9 cm8 cm Rip Van Winkle is Irvings interpretation overly Pesimistic if or realistic?00 How did the Aztecs treat neighboring tributary states? sec^2 54 - 1, can anyone please help me with question asap what was the name of the model that allowed for growth, scalability, and monopolistic control of an idea, service, or process, that was followed by future entrepreneurs? Write a 250-word report on either the Sadducees or the Pharisees. Your report should include information concerning the background of the religious group, their beliefs, their influence on the Jewish people, and their conflicts with Jesus Christ What is the geometric mean of 5 and 11? * you decide that you are going to condition your dog, neville, to salivate to the sound of a metronome. you give neville a biscuit, and then a second later you sound the metronome. you do this several times, but no conditioning seems to occur. this is probably because 100 points!The most dangerous game by Richard Connell What personality trait does this character demonstrate? room attendants at your hotel typically clean one room every 20 minutes. one-fifth of the rooms take 40% longer to clean due to various issues. how much time will it take to clean 175 rooms? your friend devin, who is right-handed, has played the violin for almost 20 years. if you conducted an mri scan of devin's brain, you would expect to see an increase in the size of his: what is value engineering Substituting low-cost components with high-quality components that still meet the product's lifetime duration and basic purpose Substituting high-quality components with low-cost components that still meet the product's lifetime duration and basic purpose Engineering products that are not meant to be replaced but have a high cost Engineering products that are meant to be replaced frequently but have a low cost PLEASE HELP ASAP!! WILL GIVE BRAINLIEST A regular polygon has 12 sides. If one of its angles measures (8h 30), what is the value of h? h = 10.75 h = 18.75 h = 20.25 h = 22.5 foot of a 10m long ladder leaning against a vertical well is 6m away from the base of the wall. Find the height of the point on the wall where the top of the ladder reaches. What best describes the performance of Bolero by Debussy? A. Unpredictable and SporadicB. Dissonant Block ChordsC. Repetitive and BuildingD. Full of Operatic Vocalizations How many atoms thick is graphene?