please answer quick!! thank you

Therefore , the solution of the given problem of equation comes out to be  x = 73/19 , y = 5/19 and z = 18/19.

In a mathematical formula, the equal symbol (=) is used to denote that the statements are equivalent. It is demonstrated that many numerical variables are comparable using mathematical equations, which are statements of reality. The equal sign, for instance, separates the numbers 12 or b + 6 split separate halves of the equation y + 6 = 12. It is possible to calculate how many words each sides of a symbol represents. The meaning of a symbol usually contradicts itself.

Here,

Given :

=> x-3y+z=4.......   (1)

=>2x-8y+8z=-2 ........ (2)

=> -6x+3y-15z=9 ......... (3)

Multiply eq (1) by 2 and subtract from eq (2)

=>  2x - 6y + 2z -2x +8y +8z = 8 +2

=>  2y +10z =10

=> y + 5z =5 ..... (4)

and

Multiply eq (2) by 3 and add to eq (3)

=> 6x - 24y +24z  -6x + 3y -15z =-6 +9

=> -21y + 9z = 3

=> -7y + 3z =1 ..... (5)

So ,

from eq (4) and (5)

=> y = 5 -5z

=> -7(5-5z) + 3z = 1

=> -35 + 35z + 3z =1

=> 38z = 36

=> z = 36/38

=> z = 18/19

and

=> y = 5 - 5 (18/19)

=> y = 95 -90/19

=> y = 5/19

and

=> x = 4 -z +3y

=> x = 4 - 18/19 +15/19

=> x = 76 -3 /19

=>  x = 73/19

Therefore , the solution of the given problem of equation comes out to be  x = 73/19 , y = 5/19 and z = 18/19.

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Answer:  The chef can bake (a) 0.25 pies/min.

Step-by-step explanation:

1 hour = 60 minutes

1 hour = 15 pies

15=60m

15/60 = 60/60 m

0.25 = m

The rate in pies per minute is 0.25. Therefore, option A is the correct answer.

Given that, a chef can bake 15 pies in one hour.

We need to find the rate in pies per minute.

What is the rate per minute?

Rate per minute was calculated by dividing the number of events observed by the observed minutes in the observation.

Simplify the rate by dividing each number by the greatest common factor.

Here, divide the number of pies by 60 minutes (1 hour=60 minute)

Now, 15/60=0.25 pies/min

The rate in pies per minute is 0.25. Therefore, option A is the correct answer.

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originally by brainly user bhoopendrasisodiya34

Can a triangle be formed having the length of sides 2cm 3cm & 5cm.Therefore, this triangle is not possible.

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Yuna wam 1.9 miles in the open ocean in two hours, starting off with an average speed of 1.4 mph but decreasing to 0.8 mph. This resulted in a total distance of 2.8 miles.

To calculate Yuna's total distance wimmed, we need to calculate the total time it took her to wim. She wam 1.9 miles in 2 hours, so her average peed for the entire wim wa 1.4 mph.

1.4 mph x 2 hours = 2.8 miles

Therefore, Yuna wam a total of 2.8 miles.

Yuna trained for a triathlon and wam 1.9 miles in the open ocean, which took her two hours. She started off with an average speed of 1.4 mph, but as she got tired and wam against the current her average speed decreased to 0.8 mph. In order to calculate the total distance wimmed, we need to calculate the total time it took her which can be done by multiplying her average speed of 1.4 mph by the two hours. This gives us a total distance of 2.8 miles, which means that Yuna wam a total of 2.8 miles.

Yuna wam 1.9 miles in the open ocean in two hours, starting off with an average speed of 1.4 mph but decreasing to 0.8 mph. This resulted in a total distance of 2.8 miles.

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Answer:

Below

Step-by-step explanation:

Cross multiply to get

[3x(x) + (x-2)(x+3)  ] / [x(x+3)]     <==== simplify

[4x^2 +x -6 ] / (x(x+3))      done.

Answer:

[tex]y = 2x - - 3[/tex]

That's the answer. Hope this helps

Please could you give me brainliest

Answer:

75 meters long 55 meters wide

Step-by-step explanation:

80*50= 4000

75*55=4125

4125<4000

75+55= 130

80+50=130

The leading coefficient in the polynomial 2v³ +4v² + 1 will be A. 2

The term with the highest power of x is the leading term in a polynomial. As an illustration, the leading term in 7 + x + 3x² is 3x².

The leading coefficient is the number in front of the variable with the highest power

A polynomial's leading coefficient is the coefficient of the leading term. The leading coefficient in the aforementioned illustration is 3.

In this case, this will be 2v³. The coefficient is 2.

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An image may be defined as that point, where the light rays coming from an object meet or appears to meet after reflection or refraction.

In this definition, the word 'object' may be defined as anything from which light rays are coming.

A function f from a set A to a set B is a special relation in

which, every element of set A has unique image in set B.

The function f from A to B is denoted by f : A →

If, f(a) = b, then ‘b’ is called the image of ‘a’ under f and ‘a’

is called the pre image of ‘b’ under f.

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For the given line segment, the value of HJ is 32 and hence option a is the correct answer.

Two unique points on a line define the boundaries of a line segment. A line segment is sometimes referred to as a section of a line that links two places.

Given that:

GJ = 56

[tex]\frac{GH}{HJ} =\frac{3}{4}[/tex]

The line segment GHJ = GJ can be written as follows:

GJ= GH +HJ

From the given ratio we know that:

GH = 3x and

HJ = 4x

Thus, the value of GJ = 3x + 4x

GJ = 7x

56 = 7x

x = 8

Substitute the value of x = 8 in GH = 3x and HJ = 4x.

GH= (3)(8) = 24

HJ = (4)(8) = 32

Hence the value of HJ = 32 and option a is the correct answer.

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On solving the provided question, we can say that here, in the equation = (2x+3y)(3y-3)=12x+3y-15. so the missing values are = 3y

A mathematical equation is a formula that joins two statements and uses the equal symbol (=) to indicate equality. A mathematical statement that establishes the equality of two mathematical expressions is known as an equation in algebra. For instance, in the equation 3x + 5 = 14, the equal sign places the variables 3x + 5 and 14 apart. The relationship between the two sentences on either side of a letter is described by a mathematical formula. Often, there is only one variable, which also serves as the symbol. for instance, 2x – 4 = 2.

here, in the equation

(2x+3y)(3y-3)=12x+3y-15

so the missing values are

3y

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There are some means for value. There are:

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Answer:

A:33

B:22

C:74

Step-by-step explanation:

A:

2x2x2=8

5x5=25

8+25=33

B:

7x7=49

3x3x3=27

49-27=22

C:

8x8=64

square root of 100 is 10

64+10=74

i hope this helps :)

The range of possibilities for the third side of the triangle, after using the triangle inequality theorem is 13 < n < 25.

According to the theorem of triangle inequality, the sum of any two of a triangle's sides must exceed the length of the third side. When we know the lengths of two sides, x and y, we can apply the triangle inequality theorem to estimate the length of the third side, which will be between x + y and x - y.

As a result,

x – y < n < x + y

19 – 6 < n < 19 + 6

13 ft < n < 25 ft

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The domain of f(x) = 4x + 1 is all real numbers.

The domain of a function is the set of all input values for which the function is defined. As the expression f(x) = 4x + 1 does not contain any restrictions on the values of x, the domain of this function is all real numbers.

The domain of a function is the set of all possible input values for which the function is defined. In this case, the function is f(x) = 4x + 1, which does not have any restrictions on the values of x, thus the domain of this function is all real numbers. This means that all real numbers are valid input values, including negative numbers, positive numbers, fractions, irrational numbers, and all other real numbers. This means that regardless of the input value, the output will always be a real number. Thus, the domain of this function is all real numbers.

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Answer:

x = 5 ft

Step-by-step explanation:

Volume of a right square pyramid = V = x²h/3

66.7 = x²(8/3)

x² = 66.7(3/8) = 25

x = √25 = 5

The proper way to enter the piece-wise function into Desmos is given as follows:

A piecewise function is a function that has different definitions, based on the input of the function.

The definitions for this problem are given as follows:

The correct command to enter an interval in Desmos is between {}, hence the intervals are given as follows:

The definitions of f(x) are entered using y = f(x), hence the correct option is given by the second option.

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Answer:

0.28

Step-by-step explanation:5 (numerator) ÷ 18 (denominator) = 0.28

Answer: 0.28

Step-by-step explanation:

You look it up

Krista put 0.40 in the first equation meant for the number of stamps. Therefore, option A is the correct answer.

A system of linear equations consists of two or more equations made up of two or more variables such that all equations in the system are considered simultaneously. The solution to a system of linear equations in two variables is any ordered pair that satisfies each equation independently.

Given that, Krista was assigned a homework problem that stated there were 45 stamps purchased for $18.75. Some stamps were 40 cents, and some stamps were 55 cents.

Let 40 cents stamps be x and 55 cents stamps be y.

Now, x+y=45 --------------(I)

0.40x+0.55y=18.75 --------------(II)

System of equations Krista written are

0.40x+y=45 and x+0.55y=18.75

Therefore, option A is the correct answer.

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The rule of the sequence 2 4 6 is that each term is obtained by adding 2 to the previous term.

In an arithmetic sequence, the rule is that each term is obtained by adding a fixed value (common difference) to the previous term. In this case, the common difference of the sequence 2 4 6 is 2. So, 2 is added to the first term (2) to get the second term (4), and 2 is added to the second term (4) to get the third term (6).

It is also possible to express the rule of the sequence by using the formula of an arithmetic sequence, which is a_n = a_1 + (n-1)d, where a_1 is the first term, d is the common difference, and n is the number of the term.

In this case, a_1 = 2, d = 2, so the rule of the sequence is a_n = 2 + (n-1)2 = 2n, where n is the number of the term.

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Answer:

First, divide the number by the base to get the remainder. This remainder is the first, ie least significant, digit of the new number in the other base

Then repeat the process by dividing the quotient of step 1, by the new base. ...

Repeat this process until your quotient becomes less than the base

Step-by-step explanation:

Answer:

A, B

Step-by-step explanation:

[tex]x^2-5x-4=0 \\ \\ x=\frac{5 \pm \sqrt{(-5)^2-4(1)(-4)}}{2}[/tex]

On simplifying, the correct answers are A and B.

The correct option is (iii) Isosceles triangle is the one which has only 2 equal sides.

Every triangle is made up of three sides and three angles. A side is opposing an angle or a vertex if none of its ends is at the given angle's vertex. An angle is included between two sides if their common terminus is the angle's vertex.

Triangles are divided into one of three types based on the lengths of its sides: scalene, isosceles, or equilateral. A triangle is scalene if none of its sides are equal (of equal length). The triangle is isosceles if two or more of its sides are equal. A triangle is equilateral if all three of its sides are equal. By definition, all equilateral triangles are also isosceles.

Therefore, the correct answer is option (iii) Isosceles Triangle

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The 3rd term in the given sequence is 45

A sequence is an enumerated collection of objects in which repetitions are allowed and order matters.

Given that, first and nth term of a sequence a₁ = 4 and aₙ = 3aₙ₋₁ + n

a₁ = 4

aₙ = 3aₙ₋₁ + n

So, a₂ = 3a₂₋₁ + 2

= 3a₁ + 2

= 3×4+2

= 14

Therefore,

a₃ = 3a₋₁ + 3

= 3a₂ + 3

= 14×3+3

= 45

Hence, a₃ = 45

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what is the difference between 880 an 580

The value of x in the rectangle is 7 metres.

A rectangle is a quadrilateral with opposite sides equal to each other and also parallel to each other.

The rectangle has dimension 12 meters and 5 times x metres, with diagonal length of 37 metres.

Hence, the length x can be found using Pythagoras's theorem.

Therefore,

c² = a² + b²

where

Therefore,

37² = 12² + (5x)²

1369 = 144 + 25x²

1369 - 144 = 25x²

1225 = 25x²

divide both sides by 25

x² = 1225 / 25

x² = 49

square both sides

x = √49

x = 7 metres

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The equivalent expressions for the expressions are

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

4x - 7y - 5z + 6 and -3x - 8y - 4 - 8/7z

Solving the first expression, we have

4x - 7y - 5z + 6

Rewrite as

4x  + 6 - 7y - 5z

Factor out 2

2(2x + 3) - 7y - 5z

Solving the second expression, we have

-3x - 8y - 4 - 8/7z

Factor out 4

-3x - 4(2y - 1 - 2/7z)

Hence, the equivalent expression is -3x - 4(2y - 1 - 2/7z)

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Triangle DEF is an isosceles triangle, with two sides of length 8 and one side of length 10.

We can use Heron's Formula to calculate the area of the triangle. Heron's Formula is A = √(s(s-a)(s-b)(s-c)), where s is the semiperimeter, or half of the perimeter, and a, b, and c are the lengths of the sides of the triangle.

The semiperimeter of triangle DEF is (8+8+10)/2 = 16. Substituting these values into Heron's formula yields A = √(16(16-8)(16-8)(16-10)) = √(256(8)(8)(6)) = √11520 = 107.3.

Therefore, the area of triangle DEF is 107.3 square units.

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The length of the string is 37.7 inches string is placed on the outside of a clock going clockwise from 12 to 9.

To calculate the length of the string, first, start with the fact that the circumference of a circle is equal to pi multiplied by the diameter. The diameter of the clock is 12 inches, so then the circumference is 12π or 37.7 inches.

Since the string is going around the outside of the circle, the length of the string is equal to the circumference which is 37.7 inches. To get this answer, take the radius (6 inches) of the clock and double it to get the diameter (12 inches).

Multiply the diameter by pi (3.14) to get the circumference (37.7 inches) and then the length of the string is the same as the circumference.

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Correct question.

A string is placed on the outside of a clock going clockwise from 12 to 9. The clock has a radius of 6 inches. What is the length of the string?

The temperature in this city changed by 7.5 degrees Celcius

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

Rate of change = 0.5 degree Celcius daily

Number of days = 15

Using the above as a guide, we have the following:

Total change = Rate of change * Number of days

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

Total change = 0.5 * 15

Total change = 7.5

Hence, the total change is 7.5 degrees

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Complete question

The temperature of a City changes by 0.5 degree Celcius daily in the month of February. Summarize how the high temperature in this city changed over the 15 days