if y=12, what is the value of 85y+8-80y?

Answer:

letter b

Step-by-step explanation:

Answer:

45

Step-by-step explanation:

5x3x3

Answer: A rotation followed by a reflection. The two figures are congruent because (I'm not sure about this one because I don't know the options that the drop-down menu provides.)

Inequality that represents the coordinates that are not the solutions of this inequality is x < 7.5. The graph of the inequality is attached at the end.

The various operators used in inequalities for expression are -

Given is a inequality in one variable which is → x + 3.8 > 11.3.

PART - A

The inequality that represents the coordinates that are not the solutions of this inequality is -

x + 3.8 < 11.3

or

we can simplify it to get -

Subtract 3.8 from both sides -

x + 3.8 - 3.8 < 11.3 - 3.8

x < 7.5

PART - B

In order to plot the graph of this inequality, firstly we will plot the line of equation -

x = 7.5.

Since, the inequality is strict, make a dashed line to represent the equation.

Take the coordinates of origin O(0,0), and substitute it in the inequality -

0 < 7.5

which is true. Therefore, we will shade the complete side where origin lies.

The graph of the inequality is plotted an attached with the answer.

Therefore, inequality that represents the coordinates that are not the solutions of this inequality is x < 7.5. The graph of the inequality is attached at the end.

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Answer:

The experimental probability depends on how many times you're spinning it and theoretical probability is stating what "would" happen if you're only spinning it once. After you get the theoretical probability, you would multiply that percentage by 25 to get the experimental probability percentage.

Step-by-step explanation:

The experimental probability depends on the number of times the experiment is conducted. The result from a theoretical probability is what would happen if the experiment is done once.

Probability determines how likely a stated event would occur. The probability the event occurs is 1 and the probability that the event does not occur is 0. Experimental probability is based on the result of an experiment that has been carried out multiples times

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Answer:

2(x + 6)

Step-by-step explanation:

If we let the number be "x", then the sum of the number and six is x + 6. To find twice the sum, we multiply this expression by 2:

2(x + 6)

Therefore, the expression that represents twice the sum of a number and six is 2(x + 6)

The answer to all parts is shown below.

1. The most useful statistical instrument to be used with a big number of respondents is a survey questionnaire.

This allows researchers to collect data from a large sample size efficiently and in a standardized manner, ensuring that all respondents are asked the same questions in the same order. Online surveys are particularly useful as they can reach a wider audience and allow for easy data analysis.

2. The process you are referring to is called "expert interviews".

3. This is an example of a survey question that measures a respondent's preference.

4. The changes in characteristics, behavior, and attitudes of the people observed are the focus of observation.

5. Open-ended question.

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Answer:

\(Distance = 880ft\)

Step-by-step explanation:

Given

\(Speed = 20\frac{miles}{hour}\)

\(Time = 30\ seconds\)

Required

Determine the distance

To answer this question, we make use of speed-distance relationship

\(Speed = \frac{Distance}{Time}\)

Make Distance the subject

\(Distance = Speed * Time\)

\(Distance = 20 miles/hour * 30 seconds\)

Convert seconds to hour

\(Distance = 20 miles/hour * \frac{30}{3600} hour\)

\(Distance = 20 miles * \frac{30}{3600}\)

\(Distance = \frac{20 miles * 30}{3600}\)

\(Distance = \frac{600\ miles}{3600}\)

\(Distance = \frac{1}{6} miles\)

Convert to foot

\(Distance = \frac{1}{6} * 5280\ ft\)

\(Distance = \frac{1* 5280\ ft}{6}\)

\(Distance = \frac{5280\ ft}{6}\)

\(Distance = 880ft\)

$60000 is the total annual income of the family

A circle graph is a circular chart divided into sections where each section represents a percentage of the total

Given that: $27,600 is used for Food, Auto, and Clothing combined

The percentages for Food, Auto, and Clothing are 18%, 12% and 16% respectively

Percentages for Food, Auto, and Clothing = 18+12+16 = 46%

Let T represent the total annual income

We can write that:

 46% of T =  $27,600

46/100 × T = 27,600

Solve for T:

46/100 × T = 27,600

T = (27,600×100) / 46

T = 27,60000/46

T = $60000

Therefore, the total annual income of the family is $60000

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Answer:

Multiply 2.9 by 102.

295.8

Step-by-step explanation:

please........

Answer:

I just did it its 1/3n - 5

Step-by-step explanation:

0.738 is the probability the sample mean household.

How does sampling distribution work?

When selecting random samples from a particular population, statisticians create a probability distribution of that statistic, which is known as a sampling distribution.

                             It reflects the frequency distribution of how widely spaced different outcomes will be for a particular population and is also referred to as a finite-sample distribution.

we  have to determine P[ 2.5 < X < 2.66]

 μₓ = 2.58

 σₓ = σ/√n = 0.75/√110 = 0.07150969

= p[2.5 < x < 2.66]

 = P[X < 2.66] - P[X < 2.5]

 = P[ X - μₓ/σₓ  < 2.66 - 2.58/0.07150969] - P[ X - μₓ/σₓ  < 2.50 - 2.58/0.07150969]

   = P[ Z < 1.12] -P[Z< -1.12]

   = 0.8686 - 0.1314

  = 0.737

P[Z< 1.12] - P[Z < -1.12]

= 0.869 - 0.131

= 0.738

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Answer:

a

             \(P(K = k ) = \  ^nC_x * p^k  *  (1-p)^{n-k}\)

Here  k is the random number of number of pairs of shoes that will be returned for refund, which can be  k = 0,1 ,2,3,4 ..., 120

b

The mean is   \(E(K) =  np =  13.2\)  

The  standard deviation is  \(\sigma =  3.43\)

c

The mean is  \(E(C) =   E(105 K) =  1386\)

The standard deviation is   \(\sigma  =  381.48 \)  

Step-by-step explanation:

From the question we are told that

   The  cost to dealer for each refund is  \(C =  \$105\)

   The  probability  that a shoe will refunded is  \(P(x) =  0.11\)

   The number of shoes purchased is  n  =  120 pairs

Generally the probability distribution of the number of pairs of shoes that will be returned for refunds is

          \(P(K = k ) = \  ^nC_x * p^k  *  (1-p)^{n-k}\)

Here  k is the random number of number of pairs of shoes that will be returned for refund, which can be  k = 0,1 ,2,3,4 ..., 120

Generally the mean is mathematically represented as

     \(E(K) =  np =  120 * 0.11\)

=>    \(E(K) =  np =  13.2\)  

Generally the  standard deviation is mathematically represented as

     \(\sigma  =  \sqrt{ n*  p  (1-p)}\)

=>    \(\sigma  =  \sqrt{ 120* 0.11  (1-0.11)}\)

=>    \(\sigma =  3.43\)

Generally the total refund cost is mathematically represented as

     \(C =  105 K\)

Here K denotes the number of shoes returned

Generally the mean of the total refund cost is mathematically represented as

           \(E(C) =   E(105 K) =  105 E(K)\)

=>         \(E(C) =   E(105 K) =  105 * 13.2\)

=>         \(E(C) =   E(105 K) =  1386\)

Generally the variance of the total refund cost is mathematically represented as

       \(Var(K) =  105^2 *  E(K)\)

=>     \(Var(K) =  105^2 *  13.2\)

=>    \(Var(K) =  145530\)  

=>      \(\sigma =  \sqrt{145530 }\)

=>    \(\sigma  =  381.48 \)  

Answer:

d=2-3a

Step-by-step explanation:

Solve for d by simplifying both sides of the equation, then isolating the variable.

3d+3a=4

Subtract 3 from each side of the equal sign:

d+3a=1

Subtract 3a-1:

d=2-3a

Hence d=2-3a is your final answer

Answer:

d = 2 - 3a

a = -d+2/3

Step-by-step explanation:

i didnt know which one u wanted to slove for but here are the answers and putting both equations would take to long so yea

lmk if this helped

Answer:

S = 2π(3^2) + 2π(3)(8.2) = 67.2π = 211 cm^3

The length of e is 29.53 inches.

In the following, the law of sine is presented in detail: In a triangle, the sine of angle A divided by side "a" equals the sine of angle B divided by side "b" equals the sine of angle C divided by side "c".

Given:

f= 33 inches

<F= 140, <D = 5

Now,

<E= 180 - (<F+ <D) = 180 - (140 + 5) = 35

Using Sine law

sin F / f = sin E/ e

sin 140 / 33 = sin 35 / e

0.642/ 33 = 0.573 / e

0.0194 e= 0.573

e= 29.53 inches

Hence, the length of e is 29.53 inches.

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,By following these steps, we can find the value of this expression:

first we multiply both -2 and 3 by their corresponding fractions, we do this by just multiplying the numbers with the numerator of the fraction, like this:

Now simplify the fractions:

To sum fractions, we have to make sure that the denominators are the same, this is not the case, we can make their denominators the same by dividing and multiplying the two by two, like this:

Now, we just have to sum up the numerators, like this:

Then, the value of this expression is:

Answer:

18

Step-by-step explanation:

6 / (1 / 3) = 6 * 3 = 18

Answer:

18

Step-by-step explanation:

I did it and got it right

-12v+6y+18

you multiply everything by -3, so -3×4v=-12v
-3×(-2y)=6y, since negative × negative=positive
-3×(-6)=18

i hope this helps :)

Answer:

i

Step-by-step explanation:

i stands of imaginary because no real numbers are negative

Answer:

Step-by-step explanation:

To calculate the probability of winning any amount of money, we need to sum up the probabilities of winning each individual prize.

Given the probabilities stated on the game card:

Probability of winning $10 prize = 0.2

Probability of winning $5 prize = 0.1

Probability of winning $0 prize = 0.7

To find the probability of winning any amount of money, we add these probabilities together:

0.2 + 0.1 + 0.7 = 1

The sum of the probabilities is 1, which indicates that the total probability of winning any amount of money is 1 or 100%.

Therefore, the probability of winning any amount of money in this game is 100%.

Hope this answer your question

Please rate the answer and

mark me ask Brainliest it helps a lot

According to Polynomial System, the correct answer is that the roots of f(x) are (x+1).

A polynomial system (sometimes just a polynomial system) is a set of simultaneous equations f₁ = 0,..., fₙ = 0. where fi is a polynomial in multiple variables such as x₁,..., xₙ over the fields. k.

This is due to the zero product property that when two binomials are multiplied by 0, one of their factors must be 0.

A simple example of a system of polynomial equations is

x²+y²- 5 = 0

      xy-2 = 0.

Its solutions are the four pairs (x, y) = (1, 2), (2, 1), (-1, -2), (-2, -1). These solutions are easily verified by substitution, but proving that there are no other solutions requires more work.

Based on above description, we can say that:

(x+1) must be 0.

(x+1)=0

x=-1

Thus, If (x-1)=0 then x is 1 instead of -1 in question.

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You're using Newton's method to find the roots to

f(x) = g(x)   →   x ⁶ = cos(x)

Recast this as finding the roots to

h(x) = f(x) - g(x) = x ⁶ - cos(x)

First, get the tangent line approximation L(x) to h(x) at an arbitrary starting point x = x₀ ; in a small neighborhood of x₀, we have

h(x) ≈ L(x) = h(x₀) + h'(x₀) (x - x₀)

Find the root to the tangent line function:

0 = h(x₀) + h'(x₀) (x - x₀)   →   x = x₁ = x₀ - h(x₀)/h'(x₀)

x₁ is the first approximation of a root to h(x). Repeat the process - that is, take the tangent line to h(x) at x₁ to find the next approximation x₂, and so on - until you meet the required condition.

For the smaller root, take x₀ = -π/2 :

x₀ ≈ -1.5708

x₁ = x₀ - h(x₀)/h'(x₀) ≈ -1.31348

x₂ = x₁ - h(x₁)/h'(x₁) ≈ -1.11366

x₃ = x₂ - h(x₂)/h'(x₂) ≈ -0.982446

x₄ = x₃ - h(x₃)/h'(x₃) ≈ -0.928013

x₅ = x₄ - h(x₄)/h'(x₄) ≈ -0.920039

x₆ = x₅ - h(x₅)/h'(x₅) ≈ -0.919887

Stop at x₆ because |x₆ - x₅| ≤ 0.001.

For the larger root, you can start the process over with a different seed for x₀, such as π/2. But since h(x) is an even function and symmetric about the y-axis, the larger root will just be the same root with positive sign, 0.919887.

Answer:

The quen is as following:

ABC is a right triangle at C,

Acute angles are in the ratio 5:1, i.e. ∠BAC : ∠ABC = 5:1

If CH is an altitude to AB and CL is an angle bisector of ∠ACB, find m∠HCL.

The solution is:  m∠HCL = 30°

Step-by-step explanation:

See the attached figure.

∵The triangle is right at C   ∴∠C = 90°

∴∠A + ∠B = 90° ⇒(1)

∵ Acute angles are in the ratio 5:1, i.e. ∠BAC : ∠ABC = 5:1

∴∠A = 5 times ∠B

Substitute at (1)

∴ 5 ∠B + ∠B = 90° ⇒⇒⇒ ∴∠B = 15°  and ∠A = 75°

∵CL is an angle bisector of ∠ACB

∴ ∠ACL = 90°/2 = 45°

∵ CH is an altitude to AB ⇒ ∠CHA = 90°

At the triangle AHC:

∠ACH = 180° - (∠CHA + ∠CAH) = 180° - (90° + 75°) = 15°

∴ ∠HCL = ∠ACL - ∠ACH = 45° - 15° = 30°

Answer:

Circumference/Diameter = π

If the diameter is 2, then the circumference is 2π.

If the diameter is 6, then the circumference is 6π.

Answer:

6

Step-by-step explanation:

Answer:

the answer is b

Step-by-step explanation:

got it right on the test

Answer:

B

Step-by-step explanation:

I got it right 2

Answer:

Brainliest please, It helps me!

Step-by-step explanation:

The probability of selecting a red marble second given that you randomly selected a blue marble first can be found using conditional probability.

First, we need to determine the total number of possible outcomes. From the sample space provided, there are a total of 6 possible outcomes: BB, BG, BR, GB, GG, and GR.

Next, we need to determine the number of outcomes where a blue marble is selected first. From the sample space, there are 3 outcomes where a blue marble is selected first: BB, BG, and BR.

Finally, we need to determine the number of outcomes where a red marble is selected second given that a blue marble was selected first. From the sample space, there is only one outcome where this occurs: BR.

Therefore, the probability of selecting a red marble second given that you randomly selected a blue marble first is 1/3 or approximately 33.3%.

The binomial factors of x³- 4x²+x+6​ are (x+2), (x+3), and (x-1).

Using the splitting and grouping the terms:

x³ + 4x² + x - 6

= x³ + 2x² + 2x² + x - 6  [Splitting 4x² = 2x² + 2x²]

= (x³ + 2x²) + (2x² + x - 6)

= x² (x + 2) + (2x² + 4x - 3x - 6)

= x² (x + 2) + [ 2x (x + 2) - 3 (x + 2)]

= x² (x + 2) + (x + 2) (2x - 3)

= (x + 2) ( x² + 2x - 3)

= (x + 2) ( x² + 3x - x - 3)

= (x + 2) [x (x + 3) - 1 (x + 3)]

= (x + 2) (x + 3) (x - 1)

Hence, the binomial factors are (x + 2), (x + 3) and (x - 1)

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