from a (western) standard 52-card deck, how many ways are there to draw two cards such that the first card is a spade and the second card is a queen?

As per the 95% confidence interval, the true proportion of the professor's students who were registered to vote is between 57.3% and 82.7%

The term called confidence interval is defied as  the mean of your estimate plus and minus the variation in that estimate.

Here we know that  sample of 50 of her students randomly sampled from her 700 students, 35 said they were registered to vote.

Here we have to calculate the true proportion of the professor's students who were registered to vote with 95% confidence interval is,

Here we have a random sample of less than 10% of the professor's students with 35 expected successes and 15 expected failures

Here we have know that both of which are at least ten, so a Normal model applies.

Then the value of n = 50,

=> P =35/50 = 0.70

Then the value of q = 1 - p = 1 - 0.70 = 0.30

Then the value of SE is

=> √(0.70 0.30)/ 50 = 0.065

Then with 95% confidence interval is calculated as,

=>  p± SE(p)

Apply the values on it, then we get

=> 0.70±1.96 (0.065)=0.70±0.127

=> 0.573 to 0.827

hence the 95% confident that between 57.3% and 82.7% of the professor's students are registered to vote.

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A measure computed from the entire population is called​ parameter.

A limit is a parameter. A parameter is a constant in an equation in mathematics, however today, any system can include parameters that control how it functions. You can provide guidelines for your class discussion.

Greek words para-, which means "beside," and metron, which means "measure," are combined to form the term parameter. Gravity and time are two boundaries that the natural world establishes. The law establishes the boundaries of appropriate conduct in court. While parameters and perimeters are similar, a parameter can contain or define something that is either physically present or abstractly defined, whereas a perimeter is the physical space that surrounds an entity.

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Answer: Let x be the fare of the train, and y be the fare of the bus.

We know that:

x + y = 400 (the total fare of the journey)

And, on the return journey the fare of the bus is hiked by a half of what Talia paid initially, so the fare of the bus on the return journey is:

y * 1.5 = y + (y/2)

And the total fare of the return journey is hiked to 4800, so:

x + y + (y/2) = 4800

We can substitute the first equation into the second equation:

x + (y + (y/2)) = 4800

x + y + (y/2) = 4800

x + (y + (y/2)) = 4800

So, we can solve the system of equations by substituting the first equation into the second equation and solving for x.

x + y = 400

x = 4800 - (y + (y/2))

x = 4800 - y - (y/2)

x = 4800 - y - (1/2)y

x = (4800 - y) - (1/2)y

x = 4800 - (3/2)y

Now we have an equation for x in terms of y. To solve for x, we can use the value of y from the first equation

x = 4800 - (3/2)(400)

x = 4800 - 600

x = 4200

So the train fare is 4200 sh

Step-by-step explanation:

The value of cos v in simplest terms in fraction form is 17/18

In mathematics, trigonometric functions are real functions that relate an angle of a right-angled triangle to ratios of two side lengths. The six trigonometric functions are Sine, Cosine, Tangent, Secant, Cosecant, and Cotangent.

Given here: The triangle ΔXWV with WV=17 , XV=18,

We know cos ∅= base/hypotenuse

here hypotenuse is XV as it is opposite to the right angle. and the base of the triangle is 17

∴ Cos v=17/18

We can also find the measure of the third angle by using the pythogarean theorm as

WX=√18²-17²

   =√35

Hence, The value of cos v in simplest terms in fraction form is 17/18

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Answer:(x+3)=2x

Step-by-step explanation:

What it means when you substitute a value into an equation and the result is a true statement is; The solution of the equation

Solving an equation is very synonymous to trying to find the answer to a puzzle. Now, an algebraic equation states that two algebraic expressions are equal.

In order for us to solve an equation, we will have to determine the values of the variable that makes the equation a true statement. Thus, any number that makes the specific equation to be true will be referred to as a solution of the equation.

A solution to an equation is defined as a value of a specific variable that makes a statement to be true when substituted into the equation. Thus, the process of finding the solution to an equation is simply called solving the equation.

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Regarding the addition property of equality, the number would add to both sides of the equal sign to isolate the variable x = 26/7.

What amount would you add to both sides of the equal sign if you were to isolate the variable using the addition property of equality?

The official term for the equality-related characteristic that enables one to multiply both sides of an equation by the same amount. One of the most frequently applied properties for solving equations is this one.

To solve the problem, you would take away 5/7 from both sides.

What is the remedy?

x = 3 and 5/7 or 26/7.

x + 5/7 = 31/7

Subtract 5/7 from both sides of the equation:

x + 5/7 - 5/7 = 31/7 - 5/7

x = 26/7

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Answer:

1: -5/7

2: 26/7

Step-by-step explanation:

Using the property of median, the values of DC = 16, CQ = 8, FP = 15, and CE = 14.

As DQ = 24, FC = 10, RC = 7.

As we know that the centroid divide each median in the ratio of 2:1.

The diagram of the question is given below:

So, we divide the median DQ in the ratio 2:1

2x + x = 24

3x = 24

Divide by 3 on both side, we get

x = 8

So the length of DC = 16 and CQ = 8

Ac FC = 10 which is 2 part of the ratio 2:1.

So the value of 2x = 10

So x = 5. Now the value of CP = 5

Now the value of FP = FC + CP

FP = 10 + 5

FP = 15

As RC = 7 which is 1 part of the ratio 2:1.

So the value of CE = 2x = 2×7 = 14

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Answer:

This equation makes no sense post in better quality

Step-by-step explanation:

Answer:

The factored form of 4x+16 is (4x + 8)(2). This can be found by using the distributive property, or by using the prime factorization method.

The function that matches the description is given as follows:

f(x) = 2x - 5.

The parent function for this problem is given as follows:

f(x) = x.

The first transformation is a multiplication by two, hence the function is defined as follows:

f(x) = 2x.

The final transformation is a subtraction by 5, then the function is defined as follows:

f(x) = 2x - 5.

Meaning that the last option is the correct option.

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As per the angle sum property, the value of x is 14°

In math the term called angle sum property states that the sum of interior angles of a triangle is 180°.

Here we have the following diagram and we need to find the value of x.

While we looking into the diagram, we have identified the value of the angles are listed as follows:

=> (10x - 11)°

=> (3x - 2)°

=> (3x + 1)°

Now we have to solve this by using the angle sum property then we get,

=> (10x - 11)° + (3x - 2)° + (3x + 1)° = 180°

When we simplify this one then we get,

=> 16x - 12 = 180°

=> 16x = 168°

=> x = 14°

Complete Question

Find the value of x one the following diagram.

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Answer:8

Step-by-step explanation:

dd

Answer: To obtain a mixture that is 50% orange juice, you must find the amount of 60% orange juice needed to bring the overall concentration of orange juice to 50%.

We can start by using the formula:

(amount of 60% orange juice) / (amount of 60% orange juice + amount of 30% orange juice) = desired concentration

Let's call the amount of 60% orange juice that we need to add x.

So the equation will look like this:

(x) / (x + 5 gallons) = 0.5

We can then solve for x:

x = (0.5 * x + 0.5 * 5 gallons)

x = 2.5 gallons

So, 2.5 gallons of 60% orange juice must be mixed with 5 gallons of 30% orange juice to obtain a mixture that is 50% orange juice.

Step-by-step explanation:

The system's total dependability is 0.8813.

The reliability of the individual components determines the overall reliability of multi-component systems.

R = (0.98) (0.96) (0.94)

= 0.8813

The likelihood that a system operates well for a given period of time is known as reliability. When performing this right action:

No maintenance or repairs are necessary. The system correctly complies with the established performance requirements.

The dependability decreases when more time is taken into account for reliability calculations since it obeys the exponential failure rule.

In other words, a system's reliability will initially be high and steadily decline to its lowest level over time.

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The value of the overall reliability of the system is 0.8813.

The possibility that a system will work successfully over a certain time period is referred to as reliability. No repair is necessary or done during this right procedure. The system adheres to the performance standards as specified.

The overall reliability of multi-component systems is determined by the reliability of the individual components.

R = (0.98) (0.96) (0.94)= 0.8813

The possibility that a system will perform well over a particular length of time is referred to as dependability. There is no need for maintenance or repairs while doing this appropriate step. The system satisfies the defined performance criteria.

Because it follows the exponential failure rule, dependability falls as more time is factored into reliability assessments.

In other words, the reliability of a system will begin high and gradually drop to its lowest level over time.

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Answer: Your answer would be −2x⁴y²

Step-by-step explanation: I hope this helps!

Answer:

The third question

Step-by-step explanation:

Hope this helps!

Answer:

the equation could represent your paycheck at the end of a shift. y is equal to the total amount of money you made, 7 is equal to your hourly wage, and x is equal to the number of hours worked. For example if you worked two hours one day, the equation would be y=7(2), which could be simplified to y=14, so after a two hour shift you would make a total of $14

Step-by-step explanation:

Answer:

The answer is 351

Step-by-step explanation:

Hope this helps!

The solution to the mixed fraction 4 3/4 - 6/4 is 3 1/4

A fraction represented with its quotient and remainder is a mixed fraction. For example, 2 1/3 is a mixed fraction, where 2 is the quotient, 1 is the remainder. So, a mixed fraction is a combination of a whole number and a proper fraction.

To solve the question

Convert the mixed fractions into improper fractions

4 3/4 - 6/4

= 19/4 -6/4

we can simplify, since the denominators are the same

19-6/4

=13/4

converting to mixed fractions, we have

3 1/4

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The solution of the absolute value equation:

|x-2|=|4+x|

is  x = -1

Here we want to solve the following equation:

|x - 2| = |4 + x|

A general absolute value function can be rewritten into two equations, in this case these are:

x - 2 = 4 + x

x - 2 = -(4 + x)

The first one has no solution, but the second one does.

x - 2 = -(4 + x)

x - 2 = -4 -x

2x = -4 + 2

2x = -2

x = -2/2 = -1

That is the solution.

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Answer: For your answer you would add like terms so for -5x+x you would get -4x, and for your other you would get 7p.

The statement "7x5-4x5+16+4-26 when

(select) (select) (select) (select)+(select)=(select)-26", with the values in the same order, but with parentheses such that the statement is true is 7x(5-4x+4)-26 = (7x)(1) - 26

Factorization is the process of finding the factors, or integers that multiply together to give a specific number. It is also known as factoring or prime factorization when the factors are prime numbers. For example, factorization of 12 is 2x2x3, which are the prime factors that multiply to give 12. The process of factorization is used in a variety of mathematical and scientific fields, such as number theory, algebra, and computer science.

It can also refer to a mathematical expression where an algebraic expression can be written as a product of two or more expressions.

In general, factorization is a way of breaking down a number or an expression into smaller parts that can be used to understand or simplify it.

Therefore, when plugged in those values in the same order, the statement become true.

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Answer:

6

Step-by-step explanation:

4 1/2= 4.5

3/4=0.75

4.5/0.75= 6

just to check, 3/4 x 6 =4.5

Answer:

P =4.71x-10.6

Step-by-step explanation:

R = 6.91x

C=2.2x+10.6.

P = R - C = 6.91x-2.2x -10.6 =4.71x-10.6

The expression in terms of m and h is D = m/h if the expression is hD = m; the answer is D = m/h.

What exactly is a phrase?

It is described as blending mathematical operators, constants, and variables.

It follows that:

The sentence is:

hD = m

To account for D Declare D as the subject.

As we know, an arithmetic operation can be defined as an operation in which we add, subtract, multiply, and divide integers. It has four basic operators that are +, -, ×, and ÷.

By dividing both sides by h:

hD/h = m/h

Here h ≠ 0

D = m/h

As a result, if the statement is hD = m, then the expression in terms of m and h is D = m/h, and the solution is D = m/h.

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Leia's ending balance after 5 years will be $3245.41. The solution has been obtained by using the concept of compound interest.

What is compound interest?

Both the principal and the interest that has accumulated over the previous period are used to compute interest. Compound interest accounts for the principal when calculating the interest for the subsequent month, in contrast to simple interest, which does not. In mathematics, compound interest is frequently denoted by the letter C.I.

We know that formula for compound interest is

[tex]A= P(1 + \frac{r}{n} )^{nt}[/tex]

So, here P = $2658 , n=12, t=5 and r = 0.04

Thus, we get

[tex]A= 2658(1 + \frac{0.04}{12} )^{60}[/tex]

[tex]A= 2658(1.00333})^{60}[/tex]

A = 2658*1.2207

A = $3245.41

Hence, Leia's ending balance after 5 years will be $3245.41.

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The sheet metal should have a total area of 12.9 x 12.9 = 166.41 square feet.

The sheet metal must be large enough to form a cube with a volume of 300 cubic feet, so the side length of the sheet must be the cube root of 300, which is approximately 6.9 feet. To find the dimensions of the sheet metal, we must take into account the four 3 foot squares that will be removed from each corner. Therefore, the sheet metal should have a length of 6.9 feet + 6 feet (4 times the 3 foot squares) = 12.9 feet and a width of 12.9 feet. This will give the box a volume of 300 cubic feet, and the sheet metal should have a total area of 12.9 x 12.9 = 166.41 square feet.

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The factor by which ths speed increases is 2, then the correct option is D.

Here we have the sequence of numbers:

4, 8, 16, 32, 64,  128

Where these have units of miles per hour, but can be ignored, as we only care for the numbers. To get the factor  by which the speed change for each consecutive speeds, we just need to take the pairs of consecutive numbers and take their quotients.

We will get:

8/4 = 2

16/8 = 2

32/16 = 2

etc.

Then the factor is 2, the correct option is D.

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