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Answer:sorry i just need some poinpoint

Step-by-step explanation:

The probability of getting two odd numbers is 1/2*1/2 = 1/4.

Making the standard assumptions (unbiased die, faces numbered 1-6), there are three odd numbers per die (1, 3 and 5), so the probability of getting an odd number on a die is 3/6 = 1/2, and the probability of getting two odd numbers is 1/2*1/2 = 1/4.

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1/2*1/2 = 1/4 is the likelihood of receiving two odd numbers.

When an experiment has just two possible results, binomial probability can be used to calculate the likelihood of each outcome (success and failure).

In a binomial circumstance, there are only two outcomes that can occur on each try. Depending on what you want, you may declare one of the possibilities a failure and the other a success. Anything less than a 6 is a failure, whereas a 6 is a triumph.

A binomial experiment is a statistical test that has the following features: The experiment consists of n repeated repetitions. Each experiment has only two possible outcomes. One of these outcomes is known as a success, while the other is known as a failure.

According to the given information

The probability of receiving an odd number on a die is 3/6 = 1/2 and the likelihood of getting two odd numbers is 1/2*1/2 = 1/4 under the usual assumptions (unbiased die, faces numbered 1-6). There are three odd numbers per die (1, 3 and 5).

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Any data collection whose metrics of central placement only have the letter A as a value.Mode and median

For any given data set, the mode and median are the two measures of central location that have just one value. The mode is the most commonly occurring value in a given data set, while the median is the middle value in the data set when it is sorted in order from least to greatest. The mean, on the other hand, is an average of all the values in the data set, and the standard deviation is a measure of how much the values in the data set differ from each other. So, the answer is A. Mode and median.

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The average rate of change of the function at the interval -2 < x < 8 is 1.5

From the question, we have the following parameters that can be used in our computation:

g(x) = 3/2x + 1

The interval is given as

-2 < x < 8

This interval can be represented as

x = -2 and x = 8

Substitute the known values in the above equation, so, we have the following representation

g(-2) = 3/2(-2) + 1 = -2

g(8) = 3/2(8) + 1 = 13

This means that

g(-2) = -2 and g(8) = 13

The average rate of change is then calculated as

Average rate of change = [g(8) - g(-2)]/[8 + 2]

Substitute the known values in the above equation, so, we have the following representation

Average rate of change = [13 + 2]/[8 + 2]

Evaluate the expression

Average rate of change = 1.5

Hence, the rate is 1.5

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A Increment value in a loop can be either a positive or a negative number.

Positive Increment: A positive increment is when the value of the loop increases on each iteration.

Negative Increment: A negative increment is when the value of the loop decreases on each iteration.

In a step value, the counter variable is either an increment or a decrement every time the loop is executed. If the counter variable is decreased, it can go as low as a negative number, whereas with an increment, the counter variable can be either negative or positive with each loop executed increased.

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Answer: 15x15

Step-by-step explanation:

I'm assuming this is an optimization problem in a Calculus class, if not just disregard all of this and be happy with the answer.

We can write two equations for the value of x and y lengths of this rectangle.

2y+2x=60

xy=A

Solve our perimeter equation for y, y=30-x.

This gives us x(30-x)=A, and 30x-x²=A.

Find the derivative of the area function: A'=30-2x

To maximize we set A' to 0: 0=30-2x, x=15

Plug back into our perimeter formula: 2y+2(15)=60, y=15

So both sides will be 15 inches.

The required value of the coefficient of x is given as 12.

A simplified value of the coefficient of x is to be determined.

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

here,

In order to simplify the given expression add the like terms first,
8x-3+4x + 3 = 180
x + 4x - 3 + 3 = 180
12x = 180

Thus, the needed coefficient of x value is provided as 12.

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The dilutions in one step, or have to do serial dilutions.

There is a limit to how much can dilute a sample in one step.

Dilute by more than a factor of 100 in a single step, because that a large volume of dilute solution.

Rather, use the serial dilution technique.

Remember the formula for dilution factor (DF):

DF =Vf /Vi

, where

Vi = aliquot  volume

and Vf = final volume = aliquot volume + diluent volume

a) DF = 50

For a single dilution.

This time  add 0.2 mL of sample to 9.8 mL of saline.

Vf = 0.2 mL + 9.8 mL= 10.0 mL

DF = Vf/Vi = 10.0mL 0.2mL= 50

b) DF = 100

For a single dilution.

This time  add 0.1 mL of sample to 9.9 mL of saline.

Vf = 0.1 mL + 9.9 mL=10.0 mL

DF =Vf/Vi = 10.0mL/0.1mL = 100

c) For a serial dilution.

The formula for serial dilutions is

DF =DF1×DF2×DF3×…

about a 1:100 dilution followed by a 1:2 dilution

(1) Add 0.1 mL of sample to 9.9 mL of diluent.

DF1 = 100 Call this "Solution 1".

(2) Add 5 mL of Solution 1 to 5 mL of saline. Call this "Solution 2".

Vi = 5 mL

Vf = 5 mL + 5 mL= 10 mL

DF2 = Vf/Vi = 10mL/5mL=2

DF = DF1×DF2 = 100 ×2= 200

DF = 50

DF = 100

DF = 200

The dilutions in one step, or  have to do serial dilutions.

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Answer:

x ≤ -12

Step-by-step explanation:

We solve for x by dividing both sides by 1/4:

[tex]1/4x\leq -3\\x\leq -12[/tex]

Thus, the two sentences you need to have two words from your work bank are (1) "divide" both sides by 1/4 and (2) x is "less than or equal to" -12

The function (g+h)(n-4) is the sum of the function g(n-4) and h(n-4) will be written as (g+h)(n-4) = n² - 7n + 9.

A function is an assertion, concept, or principle that establishes an association between two variables. Functions may be found throughout mathematics and are essential for the development of significant links.

The functions are given below.

g(n) = n² + 4n

h(n) = - 3n - 3

The function (g+h)(n) is calculated as,

(g+h)(n) = g(n) + h(n)

(g+h)(n) = n² + 4n - 3n - 3

(g+h)(n) = n² + n - 3

Put n = n - 4, then we have

(g+h)(n-4) = (n - 4)² + (n - 4) - 3

(g+h)(n-4) = n² + 16 - 8n + n - 4 - 3

(g+h)(n-4) = n² - 7n + 9

The function (g+h)(n-4) will be (g+h)(n-4) = n² - 7n + 9.

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Answer:

a. t = 0.35c + 2

b. 44

Step-by-step explanation:

since it is $0.35 per copy, we would put 0.35c (c represents copies)

and t is the total cost, or what we're adding to

0.35c = t

since there is an addition of a service fee (which is $2), we add that

Final Result : 0.35c + 2 = t

The best-subset method builds the best 1-variable model, the best 2-variable mode, ... , the best k-variable model.

The best subsets regression is a s model selection approach that consists of testing all possible combination of the predictor variables, and then selecting the best model according to some statistical criteria.

Best subset regression is an exploratory model building regression analysis. It compares all possible models that can be created based upon an identified set of predictors.

The goal of attribute subset selection is to find a minimum set of attributes such that dropping of those irrelevant attributes does not much affect the utility of data and the cost of data analysis could be reduced. Mining on a reduced data set also makes the discovers pattern easier to understand.

Best subset selection is a method that aims to find the subset of independent variables that best predict the outcome and it does so by considering all possible combinations of independent variables.  

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The test statistic would be a two-sample t-test, which compares the means of two independent samples by calculating the difference in means between the two samples and dividing the difference by the standard error of the difference.

In essence, percentages are fractions with a denominator of 100. The percent symbol (%) is placed next to a number to indicate that it is a percentage. For instance, you would have received a 75% on the examination if you correctly answered 75 out of 100 questions (75/100).

Describe a percentage example.

The hundredth component, one percent (symbolized as 1%), is expressed as 100 percent, and 200 percent denotes double the quantity specified. For example, 1% of 1,000 chickens equals 1/100 of 1,000, or 10 chickens, and 20% of the total is equal to 20% of 1,000, or 200.

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Answer:

A. Prime factorisation method

Step-by-step explanation:

❌The answer is not A because:

You don't need to write a quadratic equation in terms of its prime factors to solve the quadratic equation.

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Answer: decimal 0.03 fraction 3/10

Step-by-step explanation:

Answer:

From 1846 to 1847 there was a 30% decrease and from 1847 to 1848 it increased by 51.4%

Step-by-step explanation:

How it decreased by 30%

V2-V1/V1x100

V2=3.5 V1=5

=(3.5−5)|5|×100
=−1.55×100

=−0.3×100

=−30%change

=30%decrease
How it increased by 51.4%
V2-V1/V1x100
V2=5.3 V1=3.5

=(5.3−3.5)|3.5|×100

=1.83.5×100

=0.514286×100

=51.4286%change

=51.4%increase

Apply the Binomial Probability Distribution, The Answer is 0.044.

The discrete probability distribution of the number of successes in a series of n independent experiments, each asking a yes-or-no question and each with its own Boolean-valued outcome is known as the binomial distribution with parameters n and p in probability theory and statistics.

The required formula is:

[tex]P(x)= C(n,x) p^{x}q^{n-x}[/tex]

n=10

x=8

p(8)= [tex]C(10,8) * 0.5 ^ {8} *0.5 ^{2}[/tex]

=0.044

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The value of x and y are (11.66,5)

Given that,

3x-30=y-----------1

7y-6=3x-----------2

Now, putting the value of equation 1 in equation 2 we get

⇒7(3x-30)-6=3x

⇒21x-210=3x

⇒21x-3x=210

⇒18x=210

⇒x=11.66

now put the value of x in equation 1 we solved earlier we get

⇒3×11.66-30=y

⇒35-30=y

⇒y=35-30

⇒y=5

Therefore the value of x is 11.66 and the value of y is 5

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The given equation that should be in the standard form should be like a 4.5 x 10¹¹.

The equation in standard form:

Since

The equation is (5 x 10³) x (9 x 10⁷)

Now here we use the commutative property

So,

45 x (10³ x 10⁷)

45 x 10¹⁰

4.5 x 10¹¹

Here, we multiply the number in the 1st bracket, then add, it, and then finally in standard form.

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Answer:

Step-by-step explanation:

(5*10^3)*(9*10^7)

(5*1000)*(9*10000000)

5000*90000000

450000000000

On simplifying the trigonometric expression [tex](1-sin^2x)cosx[/tex]  we get  [tex]cos^3x[/tex].

there are many ways to simplify trigonometric expressions. The simplest one is to use trigonometric identities.

                                                  [tex](1-sin^2x)cosx[/tex]

now, accordingly, we use the following identity of trigonometry to simplify

                                               [tex]sin^2x+cos^2x=1\\\\[/tex]

subtract sin^2x on both sides of this trigonometric identity we get

                                      [tex]sin^2x-sin^2x+cos^2x=1-sin^2x[/tex]

so by canceling similar terms from the left side we get

                                              [tex]1-sin^2x=cos^2x[/tex]

so by putting it in the first expression we get  

                                              [tex](1-sin^2x)cosx[/tex][tex]=cos^2x(cosx)[/tex]

finally, we get

                                                                          [tex]=cos^3x[/tex]

so by simplifying the trigonometric expression [tex](1-sin^2x)cosx[/tex]   using trigonometric identities we get  [tex]cos^3x[/tex].

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The length of WX = 25, WY = 25, XY = 17.

Isosceles triangles have two sides that have the same length.

 ABC, if it is an isosceles triangle then AB=AC

Properties of isosceles triangle used in this question:

In an isosceles triangle, if two sides are equal, then the angles opposite to the two sides correspond to each other and are also always equal and its reverse also hold.

ABC is an isosceles triangle AB=AC then

                                 ∠B =∠C

Given: ΔWXY, ∠X = ∠Y

       Therefore, WX = WY

WX = 9x-11

WY = 7x-3

XY = 4x=1

9x-11 = 7x-3

9x-7x = -3+11

2x = 8

x = 4

We can calculate easily all the side with the help of x value

WX = 9x-11 = 9*4 -11 = 26-11

                        = 25

WY = 7 x (-3) = (7×4)– 3 = 28-3

                       = 25

XY = 4x=1 = (4×4) +1 = 16+1

                       = 17

Hence, we get all the sides.

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I have earned 10 college credit hours before end of my high school graduation date.

A credit hour is an approach to estimating how much credit an understudy gets for going to a course which relates to the hours out of each week spent in that course. Dissimilar to numerous conventional secondary school courses that expect understudies to go to class consistently, school courses may just meet a few times each week.

Each hour that an understudy spends in the class regularly compares to a credit hour. For instance, on the off chance that an understudy signs up for a class that meets for one hour on Monday, Wednesday, and Friday, that course would be worth three credit hours, which is normal of numerous school courses.

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Answer:

21%

Step-by-step explanation:

Step-by-step explanation:

1) divide 134 by 106

106/134 is about 0.79

2) Multiply by 100 to find the percentage

0.79(100)= 79%

3) Subtract 79% from 100% to find the percentage difference

100%-79%= 21%

Therefore, the percent of change between 134 and 106 is 21%.

Answer:

2, 3, 4

Step-by-step explanation:

The term "at least" interprets as "greater than or equal to".

Because George has a Maximum of 300 hours left to complete sculptures and paintings, the Sum of the Hours (30x and 15y) must be Less Than, or can be Equal to 300.

It will take 8 days for the average charge per day for company a to be the same as the average charge per day for company b.

The charges incurred by these companies are given by the word expression -

Total charge = Service fee + Fee per day. Equating the expressions by keeping values of both companies. Let us represent each day by z.

80 + 22x = 0 + 32x

Rewriting the equation

32x - 22x = 80

Performing subtraction on Left Hand Side of the equation

10x = 80

Shifting 10 to Right Hand Side of the equation

x = 80/10

Performing division on Right Hand Side of the equation x = 8

On eight days, the charge will be equal.

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Answer:

$361,660

Step-by-step explanation:

(a)

the original value represents 100%

an increase of 7% is then 100% + 7% = 107% = [tex]\frac{107}{100}[/tex] = 1.07 then

new value = 1.07 × old value

(b)

new value = 1.07 × $338,000 = $361,660

F distribution is used with the global test of the regression model to reject the null hypothesis.

The hypothesis test will be conducted using a novel distribution. After the English statistician Sir Ronald Fisher, it is known as the F distribution. A ratio, the F statistic is (a fraction). One set of degrees of freedom is for the denominator, and the other set is for the numerator.

According to the null hypothesis, all group population means are equal. Because it is assumed that the populations are normal and that they have similar variances, the equal means hypothesis indicates that the populations have the same normal distribution. All groups are samples from populations with the same normal distribution, according to the null hypothesis. According to the alternative theory, at least two of the sample groups are drawn from populations with various normal distributions.

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The angle of x in the triangle is 30 degrees.

The exterior angle theorem states that the measure of an exterior angle is equal to the sum of the measures of the two remote interior angles of the triangle.

In other words, the measure of an exterior angle of a triangle is equal to the sum of the measures of the two non-adjacent interior angles of the triangle.

Therefore, the value of x can be found using the exterior angle theorem as follows:

x + 45 = 2x + 15

x - 2x = 15 - 45

- x  = - 30

divide both sides by - 1

Therefore,

x = 30

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