Which of the following system of equations has no solution?
O 3x - y = 2,9x - 3y = 6
O 4x - 7y + 28 = 0,5y - 7x + 9 = 0
O 3x - 5y - 11 = 0,6x - 10y - 7 = 0
O None of these

Total Total revenues will exceed = 8782.01

What is Total Revenue?

Total revenue is the overall sum of money received by a business through the sale of its products and services. Based on demand and price, it measures how successfully a company is generating revenue from its main operations.

Let x - normal (101.15 ,12.15)

where µ = 101.15

σ = 12.15

Mean for 85 customers

µ = 85 * 101.15 =8597.75

standard deviation for 85 customers

σ = [tex]\sqrt{85}[/tex] * 12.15 = 112.017

P ( x >x₁ ) = 0.05

P ( x-µ/ σ > x₁-8597.75/112.017) = 0.05

P (Z >Z₁) = 0.05

Where

Z₁ = x- 8597.75/112.017

Z₁ = 1.645

Then x = 112.017 *1.645 +8597.75

x = 8782.01

Total total revenues will exceed = 8782.01

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The cost for 111 books is obtained as $3.5.

In order to solve a problem for two different values of a quantity, its unit value is first derived. This method is known as unitary method.

The given problem can be solved using unitary method as follows,

The cost for 666 books = $21

Then, cost for 1 book = 21/666

Thus, the cost of 111 books = 21/666 × 111

                                            = 21/6

                                            = 3.5

Hence, the cost for 111 comic book is given as $3.5.

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Answer: x=16

Step-by-step explanation:

The two angles in the picture is equal to each other.

So the 6x + 4 = 100 degree

6x = 96

x= 16

Answer:

Step-by-step explanation:

BRO what FACTOR????????????????????????///////////////////////

The slope-intercept form of the equation 8x = 4y + 16 will be y = 2x -4.

What is equation straight line?

Y = mx + c is the general equation for a straight line, where m denotes the line's slope and c the y-intercept. It is the version of the equation for a straight line that is used most frequently in geometry. There are numerous ways to express the equation of a straight line, including point-slope form, slope-intercept form, general form, standard form, etc. A straight line is a geometric object with two dimensions and infinite lengths at both ends. The formulas for the equation of a straight line that are most frequently employed are y = mx + c and axe + by = c. Other versions include point-slope, slope-intercept, standard, general, and others.

The equation given is 8x = 4y + 16.

We must solve for y as follows;

8x = 4y + 16

4y = 8x -16

By dividing through by 4; we have;

y = 2x -16

Hence the equation for both lines will be y = x +3 and   y  = x+13

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Answer: 19

Step-by-step explanation:

4x in this equation is equal to 4(4), which equal sixteen, adding the three will then get you 19

Answer: 19

Step-by-step explanation:

Insert 4 into the x in the equation.

3+ 4 × 4

Multiply.

4 × 4 = 16

Add.

3 + 16= 19

Hope this helps!

The probability of both events occurring is 1/20.

What are examples and probability?

A number between 0 and 1 is the probability of an event, where, broadly speaking, 0 denotes the event's impossibility and 1 denotes its certainty.

                                   The likelihood of an event occurring increases as its probability increases. The flip of a fair (impartial) coin serves as a straightforward illustration.

Events X and Y are independent.

The probability of X occurring is 1/4

The probability of Y occurring is 1/5

Since both events are independent, then we have

P(X and Y ) = P(X) * P(Y)

                  = 1/4 * 1/5

                 = 1/20

 P( X and Y ) = 1/20

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Therefore, the probability that the lifetime X of the first component exceeds 5 is 0.006737, based on process.

Probability theory examines numerical illustrations of the probability that an event will happen or that a statement is true. An event's probability is expressed as a number between 0 and 1, with 1 generally denoting certainty and 0 generally denoting impossibility.

Here,

f(x,y) =[tex]xe^{-x(1+y)}[/tex]

Took the double integral of the equation above, first the integral with respect to y (from 0 to infinity) and then with respect to x (from 5 to infinity).

therefore the integration,

[tex]\int\limits^ {infinity}_0{xe^{-x(1+y)} } \, dx[/tex]

[tex]\left \{ {{y=infinity} \atop {x=0}} \right. \frac{-x}{y+1} e^{-x(y+1)} + \frac{1}{y+1} \int\limits^{infinity} _0{ e^{-x(y+1)} \, dx[/tex]

[tex]=\frac{1}{(y+1)^2}[/tex]

[tex]fX(x)[/tex] is easier with:fX(x) =[tex]\int\limits^{infinity}_0 {x}e^{-(x(y+1))} \, dy[/tex]=[tex]xe^{-x} \int\limits^{infinity}_0 x {e^{-xy} } \, dy=e^{-x}[/tex]

We get

We used u substitution to end up with    [tex]e^{-x(1+y)}[/tex] which is needed to evaluate from 0 to infinity, which left me with [tex]e^{-x}[/tex]

Then the integral with respect to x from 5 to infinity which left with an answer of [tex]e^{-5}[/tex]

So the probability that the lifetime X of the first component exceeds 5 is 0.006737, based on my process.

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Step-by-step explanation:

the volume of a pyramid is

base area × inner height / 3

we have the base area : 7×7 = 49 in²

so, we need to get the inner height h.

fit this we need to get the outer height l.

the surface area is

base area (49 in²) + 4×side triangle area = 185 in².

one of these 4 side triangle area is

baseline (7 in) × l / 2

so, we have a surface area

49 + 4×7×l/2 = 185

49 + 2×7×l = 185

49 + 14×l = 185

14×l = 136

l = 136/14 = 68/7 = 9.714285714... in

h we get now via Pythagoras

c² = a² + b²

with c being the Hypotenuse (side opposite of the 90° angle), a and b being the legs.

l² = h² + 3.5²

94.36734694... = h² + 12.25

h² = 94.36734694... - 12.25 = 82.11734694...

h = 9.061862222... in

so, the volume of the pyramid is

49 × 9.061862222... / 3 = 148.0104163... in³ ≈

≈ 148.01 in³

Answer:

GOOD MORNING

Step-by-step explanation:

I AM SINGLE

Answer:

Step-by-step explanation:

Graph crosses the x-axis at x = 0 and has zeros at {-5, -5}.Step-by-step explanation: Note that f(x) factors as follows:  f(x) = 4x^5 (x^2 + 10x + 25) …

The probability that all adjacent points differ in color is given as follows:

1/10. (second option).

A probability is calculated as the division of the number of desired outcomes by the number of total outcomes.

For the total outcomes, we have an arrangement of 6 elements, due to the six points, with 3 and 3 repetitions, as 3 are green and 3 are red, hence the number of total outcomes is calculated as follows:

[tex]T = A_6^{3,3} = \frac{6!}{3!3!} = 20[/tex]

For the desired outcomes, there are two, given as follows:

This means that the probability that all adjacent points differ in color is calculated as follows:

p = 2/20 = 1/10.

Hence the second option is the correct option.

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Answer: 25 oz for 2.30

Step-by-step explanation:

18oz Pepsi for $2.00

Take 2 divided by 18 = $0.11

25 oz for $2.30

Take 2.3 divided by 25 = $0.09

So 25 oz for 2.30 is better!

The value of a in the equation is 32/81

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

log2 ab = 5 and log3 b = 4

Rewrite the above equations properly

So, we have the following representations

log₂ ab = 5 and log₃ b = 4

Apply the exponent law of logarithm

This gives

ab = 2⁵ and b = 3⁴

Divide both equations

So, we have the following representation

ab/b = 2⁵/3⁴

Evaluate the quotient

a = 32/81

Hence, the value of a is 32/81

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The equivalent fractions for 2/3 is (3×2)/(3×3) = 6/9 and for  5/12 is (4×5)/(4×12) = 20/48.

A fraction is written in the form of p/q, where q ≠ 0.

Fractions are of two types they are proper fractions in which the numerator is smaller than the denominator and improper fractions where the numerator is greater than the denominator.

The equivalent fraction for 2/3 is (3×2)/(3×3) = 6/9.

The equivalent fraction for 5/12 is (4×5)/(4×12) = 20/48.

We have to multiply the same number to both the numerator and denominator to get equivalent fractions.

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Answer:

1. infinite

2. no

3. one

4.no

The correct option for the given equation is D.

What is an equation?

In arithmetic, associate equation could be a formula that expresses the equality of 2 expressions, by connecting them with the sign =.

Main body:

According to the given equation ,

7x² − 4 − (x² − 4x − 12) ,

we need to simplify the equation,

opening the bracket .

7x² - 4 - x² +4x +12

taking like terms together ,

(7x² -x²) +4x (-4+12)

solving it , we get

6x² + 4x + 8

Hence the option for the given equation is D which is 6x² + 4x + 8.

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We need to select different combinations of friends for a week and include every friend at least once. The possible number of ways is 72.

Combinations are mathematical operations that count the number of potential configurations for a set of elements when the order of the selection is irrelevant.

The formula for combination is as follows:

[tex]C(n,r) = \frac {n!}{r!(n-r)!}[/tex]

Number of for first 5 days = C(7,3)+C(6,3)+C(5,3)+C(4,3)+C(3,3)

=70

2 friends are remaining for last two days and we can assign them in any group of 3.

Total number of ways = 70 +2

=72

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The probability that a five-digit integer chosen at random is divisible by 5 is 13.1 %.

Given :

what is the probability that a five-digit integer chosen at random is divisible by 5 .

Probability :

Probability is a branch of mathematics that deals with the occurrence of a random event.

Probability = 9^3 * 8 * 2 / 9 * 10^4

= 729 * 8 * 2 / 9 * 10000

= 5832 * 2 / 9 * 10000

= 11809 / 90000

= 0.131

converting into percentage :

= 0.131 * 100 %

= 13.1 %

Therefore The probability that a five-digit integer chosen at random is divisible by 5  is 13.1 %

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1. There are 80 Nickels, 120 dimes, and 300 quarters in the piggy bank.

2. The coins worth is $91

How many types of coins are there?

There are 4 types of coins. They are Quarter, Nickel, dime, and Penny.

1 Quarter = 25 cent

1 dime = 10 cents

1 Nickel = 5 cents

1 penny = 1 cent

Assume that, the number of Nickel coins is x.

Given that, 2 nickles there are 3 dimes.

1 nickle there are 3/2 dimes.

x nickles there are 3x/2 dimes.

Also given that,

2 dimes there are 5 quarters.

1 dimes there are 5/2 quarters.

3x/2 dimes there are (5/2) × (3x/2) quarters = 15x/4.

There is 500 coins in the piggy.

Therefore, x + (3x/2) + (15x/4) = 500

(4x + 6x + 15x) /4 = 500

25x/ 4 = 500

x = 80.

The number of dimes is (3 × 80)/2 = 120

The number of quarters is (15 × 80)/4 = 300.

The total cost of 80 nickles, 120  dimes, and 300 quarters is

= [(80 ×  5) + (120 × 10) + (300 × 25)] cents

= 400 + 1200 + 7500 cents

= 9100 cents

= $(9100/100)

= $ 91

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The missing value so that the line passing through the points has the given slope is of:

r = 9.

Given two points that are on the graph of the linear function, the slope of the linear function is obtained by the division of the change in y of the two points by the change in x of the two points.

In this problem, the points are given as follows:

(6, r) and (3,3).

Hence the changes are given as follows:

Then the equation that gives the slope is of:

m = (r - 3)/3.

The slope has a numeric value of 2, hence the missing value r is obtained as follows:

2 = (r - 3)/3.

r - 3 = 6

r = 9.

The points are given as follows:

(6, r) and (3,3).

The slope is of:

m = 2.

The slope of as per the given points will be equal to 3/2. Hence, option B is correct.

It is possible to determine a line's direction and steepness by looking at its slope. Finding the slope between lines inside a coordinate plane can aid in anticipating if the lines are perpendicular, parallel, or none at all without physically using a compass.

As per the information given in the table,

The points are (-14, -18) and (-10, -12)

Use the equation given below to find the slope,

m = (y₂ - y₁)/(x₂ - x₁)

Substitute values in above equation,

m = (-12 - (-18))/(-10 - (-14))

m = (-12 + 18)/(-10 + 14)

m = 6/4

m = 3/2

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Answer:

[tex](x+2)(x+3)[/tex]

Step-by-step explanation:

⭐What does factorisation mean?

⭐What are factors?

Thus, we have to write [tex]x^2+5x+6[/tex] in terms of its factors.

I have a picture attached to this response to show you how factorisation works, but I will also explain it here.

How to factorise:

The picture of factorisation is attached to this response.

⭐ if this response helped you, please mark it the "brainliest"!⭐

Answer:help on what?

Step-by-step explanation:

The correct answer is boosting.

Given that,

The four tree-based techniques are boosting, bagging, random forests, and decision trees. Which method uses bootstrapped samples, or the process of repeatedly obtaining random samples from training data and replacing them?

Boosting is an emsemble machine learning approach, where we use bootstrapping sampling technique to get the required samples. It helps in the reduction of variance and thus bring in less bias in the sampling approach. Therefore boosting is the correct answer here.

In order to gather the necessary samples for boosting, we employ the bootstrapping sampling technique. It aids in lowering variance, which reduces bias in the sampling strategy. Thus, boosting is the appropriate response in this case.

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The statement "in every instance of the stable matching problem, there is a stable matching containing a pair (m, w) such that m is ranked first on the preference list of w and w is ranked first on the preference list of m" is true.

Stable pairing is a way which guarantees that all elements from two sets (men and women, children and toys, people and vacation destinations, whatever) are paired with an element from the other set AND that pair is the "best available match".

According to the statement, men are free to create a list of women's according to their preferences. There will be order sequence of women and men places them in queue of their preference. The men proposes the women with highest ranking in the list then it is possible that all men gets their preferred choice.

The pairing is a best available match and therefore can be called as a stable matching problem. Hence the statement is true.

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Answer:

I'm sure the answer is 125

Step-by-step explanation:

Hope it helps ; )