Can anyone help me with this question?

Answer:

Step-by-step explanation:

According to the given information, we have value,   the determinant of matrix A is -647.

In mathematics and computer programming, an expression is a combination of one or more values, variables, operators, and functions that are evaluated to produce a result.

Expressions can be as simple as a single value, such as "5", or as complex as a combination of multiple operators and functions, such as "2 + 3 * sin(4)".

To evaluate the determinant of the given 3x3 matrix A, we can use the formula:

det(A) = a11(a22a33 - a23a32) - a12(a21a33 - a23a31) + a13(a21a32 -a22a31)

where aij represents the entry in the ith row and jth column of matrix A.

Using this formula, we get:

det(A) = (-4)(7(5) - (-9)(-2)) - (3)(11(5) - (-9)(8)) + (0)(11(-2) - 7(8))

det(A) = (-4)(59) - (3)(137) + (0)(-66)

det(A) = -236 - 411 + 0

det(A) = -647

Therefore, according to the given information, we have value,   the determinant of matrix A is -647.

To know more about expression visit :

https://brainly.com/question/1859113

#SPJ1

Therefore , the solution of the given problem of trigonometry comes out to be using the formula 8 cos³ a - 6 cos a - 1.

According to some, the growth of astrophysics was aided by the blending of various disciplines. Many metric problems may be solved or the results of a computation may be ascertained with the help of precise mathematical techniques. Trigonometry is the study of all six basic geometric computations. They go by a variety of titles and acronyms, including sine, variation, angle, and others. (csc).

Here,

To determine cos 2a in terms of cos a, we can use the double angle cosine formula as follows:

=> cos 2a = 2 cos² a - 1

Given that 2 cos 3 = cos a, we can reformat this as follows:

=> cos 3α = (1/2) cos a

Now, we can express cos 3 in terms of cos using the triple angle formula for cosine:

=>  cos 3α = 4 cos³ α - 3 cos α

=>  4 cos³ α - 3 cos α = (1/2) cos a

=>  8 cos³ α - 6 cos α = cos a

=>  cos 2α = 2 cos² α - 1

=>  cos 2α = 2 (cos² α - 1/2)

=>  cos 2α = 2 [(8 cos α - 6 cos α)/2 - 1/2]

=> cos 2α = 8 cos³ α - 6 cos α - 1

As a result, cos 2a can be calculated using the formula 8 cos³ a - 6 cos a - 1.

To know more about trigonometry visit:

https://brainly.com/question/29002217

#SPJ1

Therefore , the solution of the given problem of expressions comes out to be when 10 is subtracted from the product of the number and 4, 36 is the number that produces a result of -1.

Once numbers have been moving, estimates ought to be made by adding, pausing, and lowering variable but instead of doing so at random. They might only be able to assist one another by sharing information, resources, or answers to problems. In addition to arithmetic operations like addition, subtraction, combination, and combination, a statement of truth also includes formulas, parts, and notations.

Here,

Call the unidentified number "x" for now. The problem statement can then be converted into an equation as follows:

=>  (x/4) - 10 = -1

We can start by adding 10 to both sides of the equation before we solve for x:

=>  (x/4) - 10 + 10 = -1 + 10

Simplifying:

=>  x/4 = 9

Finally, we can find x by multiplying both sides of the equation by 4:

=> x = 36

Therefore, when 10 is subtracted from the product of the number and 4, 36 is the number that produces a result of -1.

To know more about expressions visit :-

brainly.com/question/14083225

#SPJ1

The value of S, given the equation S = 4r^2 and r = 2x + 5, is: S = 16x^2 + 80x + 100

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

r = 2x + 5

S = 4r^2

If r = 2x + 5, we can substitute this expression for r in the equation S = 4r^2:

S = 4(2x + 5)^2

Simplifying the expression inside the parentheses, we get:

S = 4(4x^2 + 20x + 25)

Expanding the expression, we get:

S = 16x^2 + 80x + 100

Therefore, the value of S, given the equation is: S = 16x^2 + 80x + 100

Read more about equations at

https://brainly.com/question/18831322

#SPJ1

The price for each product is given by matrix BA in which price of manufacturer A is $1,106,150 and price of manufacturer B is 1,387,250.

If the column count in the first matrix equals the number of rows there in second matrix, the product of the two matrices will be known.

The resultant matrix is going to have the exact number of rows in comparison to the initial matrix and the same quantity of columns also as second matrix if the product is defined.

Given value for the manufacturers A and B are-

A =   [tex]\left[\begin{array}{ccc}3,800&4,200\\5,500&12,500\\8,000&6,400\end{array}\right][/tex]

B = [tex]\left[\begin{array}{ccc}45.50&55.50&78.50\\\end{array}\right][/tex]

Multiply matrix A with Matrix B

BA =  [tex]\left[\begin{array}{ccc}45.50&55.50&78.50\\\end{array}\right][/tex] [tex]\left[\begin{array}{ccc}3,800&4,200\\5,500&12,500\\8,000&6,400\end{array}\right][/tex]

BA =  [tex]\left[\begin{array}{ccc}45.50*3,800 + 55.50*5,500 + 78.50*8,000&45.50*4,200+55.50*12,500+78.50*6,400\end{array}\right][/tex]

On solving

BA = [tex]\left[\begin{array}{ccc}1106,150&1387,250\end{array}\right][/tex]

Thus, the price for each product is given by matrix BA in which price of manufacturer A is $1,106,150 and price of manufacturer B is 1,387,250.

Know more about the multiplication of matrix

https://brainly.com/question/24274686

#SPJ1

Based on the corresponding angles theorem, the value of x for which r ll s is calculated as: x = 15

m<1 = 64°; m<2 = 64°

The corresponding angles theorem states that when a transversal intersects two parallel lines, the pairs of corresponding angles are congruent.

Based on the corresponding angles theorem, for r to be parallel to s, therefore:

m<1 = m<2

Substitute and solve for x:

79 - x = 94 - 2x

2x - x = 94 - 79

x = 15

Substitute the value of x to find the angle measures:

m<1 = 79 - x = 79 - 15 = 64°

m<2 = 94 - 2x = 94 - 2(15) = 64°

Learn more about corresponding angles on:

https://brainly.com/question/2009183

#SPJ1

Complete Question:

Find the value of x for which r || s. Then find m<1 and m<2.

m<1 = 79 - x

m<2 = 94 - 2x

The value (s) of x and y​ are 25 and 45

x=25,y=45

A function which is a subset of the integers. In other words the sequence is an ordered set of numbers

The ratio is used to compare two or more items based on their size

5;x;y

x;y;81

let d be the common difference of A.S

x-5=d

y-x=d

y-5=2d

y-5=2(x-5)

y=2x-5

x,2x-5,81

common ratio r=> 2x-5/x= 81/2x-5

now solve for x

(2x-5/x)^2=81x

4x^2-101x+25=0

(4x-1)(x-25)

x=25

y=2*25-5

y=45

x=25,y=45

to know more about sequence

visit: https://brainly.com/question/30262438

#SPJ1

It is mostly used to keep records, calculate probabilities, and provide knowledge.

Basically, it helps us understand the world a little bit better through numbers and other quantitative information. Thus, the application of statistics is evident in our everyday activities.

the measure of the angle will be ∠BAC= 61°

What is are of triangle?

The territory included by a triangle's sides is referred to as its area. Depending on the length of the sides and the internal angles, a triangle's area changes from one triangle to another. Square units like m2, cm2, and in2 are used to express the area of a triangle.

The sum of all angle of triangle = 180

In this given triangle ∠ADE =7x and ∠BAC = 3x+10

7x + 3x+10 =180

10x+10 = 180

10x = 170

x = 17

∠BAC = 3x+10 = 51+10 = 61°

Hence the measure of the angle will be ∠BAC= 61°

Learn more about triangle, by the following link

brainly.com/question/17335144

#SPJ1

The value of the function F(3) will be 1/125. It is obtained by putting the value 3 in the place of x.

A connection between independent variables and the dependent variable is defined by the function. Functions help to represent graphs and equations.

A function is represented by the two variables one is dependent and another one is an independent function. The relation between them is shown as y if dependent and x is the independent variable.

F(x)=(1/5)ˣ

F(3)=(1/5)³

F(3)=1/125

Hence, the value of the function F(3) will be 1/125.

To learn more about the function refer to the link

https://brainly.com/question/12431044.

For $1,000 invested at 2.6% compounded monthly to grow to $2,700 (Future Value), it will take 38 years and 3 months.

Compounding refers to the system of charging interest on accumulated interest.

Compound interest is different from the simple interest system that charges interest only on the principal for each period.

With compounding, interest is computed on the principal and the accumulated interest.

To determine the period for the investment to grow to the future value of $2,700, we use an online finance calculator as follows:

I/Y (Interest per year) = 2.6%

PV (Present Value) = $1,000

PMT (Periodic Payment) = $-0

FV (Future Value) = $-2700

Results:

N = 458.920 months

= 38 years 3 months (458.92/12)

Total Interest = $1,700.0

Learn more about compounding interest at https://brainly.com/question/30364118.

#SPJ1

The quadratic function of the distance traveled by the scuba diver from sea level, d, as a function of t, time in minutes, in vertex form is:[tex]$f(t) = 0.0113(t - 4)^2 - 4$[/tex]

To write the quadratic function of the distance traveled by the scuba diver from sea level, we can use the vertex form of a quadratic function, which is:

[tex]$f(t) = a(t - h)^2 + k$[/tex]

where (h, k) is the vertex of the parabola, and a determines whether the parabola opens up or down.

In this case, we know that the vertex is at (4, -4), because the diver reaches a depth of 4 meters at 60 seconds (or 1 minute), and returns to that depth at 7 minutes (or 420 seconds), which means that the vertex is halfway between those two times:

h = (1 + 7) / 2 = 4

k = -4

We can also determine the value of a by using the other point given, at t = 4 minutes (or 240 seconds), when the diver is at a depth of 22 meters.

We can plug in these values to solve for a:

[tex]$22 = a(240 - 4)^2 - 4$[/tex]

[tex]$26 = 2304a$[/tex]

[tex]$a = 26 / 2304 = 0.01128472222$[/tex]

Therefore, the quadratic function of the distance traveled by the scuba diver from sea level, d, as a function of t, time in minutes, in vertex form is:

[tex]$f(t) = 0.0113(t - 4)^2 - 4$[/tex]

Note that the "0.0113" value has been rounded to five decimal places.

To know more about Quadratic equation visit:

brainly.com/question/30098550

#SPJ1

Answer:

[tex]\textsf{1)} \quad f(x)=3 \left(\dfrac{1}{2}\right)^x[/tex]

[tex]\textsf{3)} \quad f(x)=2 (3)^x[/tex]

Step-by-step explanation:

The general formula for an exponential function is:

[tex]\boxed{f(x)=ab^x}[/tex]

where:

From inspection of the graph, this is a exponential decay function.

The end behaviours of the function are:

The y-intercept is (0, 3), so a = 3.

Another point on the curve is (-2, 12).

Substitute a = 3 and point (-2, 12) into the formula and solve for b:

[tex]\implies y=ab^x[/tex]

[tex]\implies 12=3 \cdot b^{-2}[/tex]

[tex]\implies 4= b^{-2}[/tex]

[tex]\implies 4= \dfrac{1}{b^{2}}[/tex]

[tex]\implies b^2= \dfrac{1}{4}[/tex]

[tex]\implies b= \dfrac{1}{2}[/tex]

Therefore, the equation of the exponential function is:

[tex]f(x)=3 \left(\dfrac{1}{2}\right)^x[/tex]

From inspection of the graph, this is a exponential growth function.

The end behaviours of the function are:

The y-intercept is (0, 2), so a = 2.

Another point on the curve is (1, 6).

Substitute a = 2 and point (1, 6) into the formula and solve for b:

[tex]\implies y=ab^x[/tex]

[tex]\implies 6=2 \cdot b^1[/tex]

[tex]\implies 6=2 \cdot b[/tex]

[tex]\implies b = 3[/tex]

Therefore, the equation of the exponential function is:

[tex]f(x)=2 (3)^x[/tex]

The cheaper option is buying a single bottle of 128 fluid ounces for $40.

Here we know that you need gallon of fertilizer to cover a lawn. And we also know the prices for the fertilizers, we know that 128fluid ounces cost 40 dollars while 16 fluid ounces costs $11.

First, let's do a change of units to gallons to fluid ounces, we know that:

1 gall = 128 fluid ounces.

Then if you need exactly one gallon, the cheaper option is just buy one of the bottles of 128 fluid ounces for $40, because if you buy the smaller ones you will need to buy:

128/16 = 8 of these, for a total of 8*$11 = $88

While if you buy the big bottle you only spend $40.

Learn more about changes of units at:

https://brainly.com/question/141163

#SPJ1

Answer:

{2, 8}

Step-by-step explanation:

V union Q ={ 2,4,6,8}

V only ={2,8}

Q only ={None}

V intersection Q = {4,6}

so Q complement = V only ={2 and 8}

Answer:

x-3=8
8+3=11
You started with $11

To decrease 44 by 25%, we can first find what 25% of 44 is and then subtract that amount from 44:

25% of 44 = 0.25 x 44 = 11

So, the amount that 44 is decreased by 25% is 11.

Subtracting 11 from 44, we get:

44 - 11 = 33

Therefore, the result when the number 44 is decreased by 25% is 33.

Fοr the table 1 data pοints, the cοrrect equatiοn is Equatiοn 3:  y = -5x + 3.

A mathematical definitiοn οf an equatiοn is a claim that twο expressiοns are equal when they are jοined by the equals sign ("=").

Table 1 cοntains the data pοints -

x = -1, 0, 1, 2

y = 8, 3, -2, -7

Substitute the value οf x = -1 intο the fοur equatiοns tο οbtain the value οf y as 8.

Equation 1 is [tex]y = 5^x[/tex]

On substituting the value of x = -1 -

[tex]y = 5^{-1}[/tex]

y = 0.2

Therefore, equation 1 is incorrect.

Equation 2 is y = 5x - 2.

On substituting the value of x = -1 -

y = 5(-1) - 2

y = -5 - 2

y = -7

Therefore, equation 2 is incorrect.

Equation 3 is y = -5x + 3.

On substituting the value of x = -1 -

y = -5(-1) + 3

y = 5 + 3

y = 8

Therefore, equation 3 is correct.

Equation 4 is [tex]y = 5(0.2)^x[/tex]

On substituting the value of x = -1 -

[tex]y = 5(0.2)^{-1}[/tex]

[tex]y = 1^{-1}[/tex]

y = 1

Therefore, equation 4 is incorrect.

To learn more about equation from the given link

https://brainly.com/question/28871326

#SPJ1

the total selling price for 5 shares of stock at $90 1/8 is $450.63.

How to calculate?

To calculate the total selling price for 5 shares of stock at $90 1/8, we need to multiply the price per share by the number of shares.

Let's first convert $90 1/8 to an improper fraction:

$90 1/8 = $721/8

Now we can multiply by 5 to get the total selling price:

Total selling price = 5 x $721/8

To simplify the calculation, we can first multiply 5 by the numerator:

Total selling price = $3605/8

We can leave the answer as a fraction or convert it to a decimal:

Total selling price = $450.63

Therefore, the total selling price for 5 shares of stock at $90 1/8 is $450.63.

To know more about stock related question visit:

https://brainly.com/question/29992015

#SPJ1

Answer:

Step-by-step explanation:

18+11*65=2

Answer:

The equation that has the solution set (1, 3) is D. x² - 4x +3=0​.

Step-by-step explanation:

To find out which equation has the solution set (1, 3), we can substitute x = 1 and x = 3 into each equation and see which one gives us 0.

A. x² + 4x + 3 = 0

Substituting x = 1: (1)² + 4(1) + 3 = 8 ≠ 0

Substituting x = 3: (3)² + 4(3) + 3 = 24 ≠ 0

B. x² + 4x − 3 = 0

Substituting x = 1: (1)² + 4(1) − 3 = 2 ≠ 0

Substituting x = 3: (3)² + 4(3) − 3 = 18 ≠ 0

C. x² - 4x - 3 = 0

Substituting x = 1: (1)² - 4(1) - 3 = -6 ≠ 0

Substituting x = 3: (3)² - 4(3) - 3 = 0

D. x² - 4x +3=0​

Substituting x = 1: (1)² - 4(1) + 3 = 0

Substituting x = 3: (3)² - 4(3) + 3 = 0

The equation that has the solution set (1, 3) is D. x² - 4x +3=0​.

The  probability that the next chew Hannah removes from the bag will be a flavor other than peach is 60%.

The probability of an event is a number used in science to describe how probable it is that the event will take place. In terms of percentage notation, it is stated as a number between 0 and 1, or between 0% and 100%. The higher the probability, the more probable it is that the event will take place.

The total number of chews that Hannah removed from the bag is 20.

Out of these 20 chews, a peach chew was selected 8 times, so the number of non-peach chews is 20 - 8 = 12.

Therefore, the probability that the next chew Hannah removes from the bag will be a flavor other than peach is 12/20 = 0.6.

To express this probability as a percentage, we multiply it by 100 and round it to the nearest whole number:

0.6 * 100 = 60

So the probability that the next chew Hannah removes from the bag will be a flavor other than peach is 60%.

To know more about Probability visit:

brainly.com/question/15124899

#SPJ1

Therefore , the solution of the given problem of unitary method comes out to be Jill exercised every morning for 30 days as a result.

By applying what was acquired and bringing this variable tactic into practise, along with all supporting information from two people who used a particular tactic, the work can be finished. In other words, if the wanted expression result occurs, either the entity specified in the formula will also be discovered, or both crucial processes will actually ignore the colour. A refundable fee of Rupees ($1.01) may be necessary for forty pencils.

Here,

Let's designate the quantity of morning workout days Jill completed "x".

Jill exercised for a total of 2550 minutes, so her morning and afternoon workouts together accounted for the following amount of minutes:

25x + 1800

Additionally, we are aware that this sum equals 2550:

25x + 1800 = 2550

We can first identify the variable component on one side of the equation by deducting 1800 from both sides in order to find x:

25x = 2550 - 1800

25x = 750

Then, by multiplying both sides by 25, we can find the value of x:

=> x = 750/25

x = 30

Jill exercised every morning for 30 days as a result.

To know more about unitary method  visit:

https://brainly.com/question/28276953

#SPJ1

Using the graphing tool, we have graphed the function [tex]$\rm({\sqrt{3}}) \sec2x+2=0$[/tex].

A functiοn in mathematics is a rule that designates a certain element frοm a different set, knοwn as the range tο each element in the dοmain οf a set. Typically, a functiοn is represented by a symbοl like f(x), where x is an element frοm the dοmain and f(x) represents the οutput fοr that element frοm the range.

In discrete mathematics, and mοre specifically in graph theοry, a graph is a structure amοunting tο a set οf οbjects in which sοme pairs οf the οbjects are in sοme sense "related". The οbjects cοrrespοnd tο mathematical abstractiοns called vertices and each οf the related pairs οf vertices is called an edge.

Learn more about function, here:

brainly.com/question/12431044

#SPJ1

Complete question:

Graph the given function using a graphing tool.

[tex]$\rm({\sqrt{3}}) \sec2x+2=0$[/tex]

The equation does not represent a direct variation.

A direct variation between two variables x and y can be written as:

y = k*x

Where k is what we know as the constant of variation or constant of proportionality.

Something important about these equations is that always pass through the point (0, 0).

y = k*0

y = 0

Now let's look at our equation:

3y = 5x + 4

When we take x = 0 we will get:

3y = 5*0 + 4

3y = 4

y = 4/3

It passes through (0, 4/3)

Then this is not a direct variation.

Learn more about direct variation.

https://brainly.com/question/6499629

#SPJ1

x(x+1)=506

x^2+x-506=0

(x+23)(x-22)=0

x=22

Peter is 23 years old.

Answer:x(x+1)=506

x^2+x-506=0

(x+23)(x-22)=0

x=22

Peter is 23 years old

Step-by-step explanation:

The value of x for the given right angled triangle is x = 36.

According to Pythagoras's Theorem, the square of the hypotenuse side of a right-angled triangle is equal to the sum of the squares of the other two sides. Perpendicular, Base, and Hypotenuse are the names of this triangle's three sides. The hypotenuse in this case is the longest side since it forms the reverse of a 90° angle. When a right triangle's sides (let's say, a, b, and c) positive integer values are squared, they are used to create an equation known as a Pythagorean triple.

The given triangle is divided into two right angled triangles.

For the triangle whit the side lengths as 48 and 64, we use the Pythagoras theorem to find the hypotenuse.

c² = a² + b²

Substituting the values:

c² = (48)² + (64)²

c = 80

Now, for triangle with sides 48 and x we have:

l² = (48)² + x²

l² = 2304 + x²

Now, for the triangle with hypotenuse (64 + x) we have:

(64 + x)² = (80)² + (2304 + x²)

4096 + 128x + x² = 6400 + 2304 + x²

128x = 4608

x = 36

Hence, the value of x for the given right angled triangle is x = 36.

Learn more about Pythagoras Theorem here:

https://brainly.com/question/21926466

#SPJ1