Can someone answer this?

With the help of equations we can say that function has a f(x) = x,straight line.

What is an equation?

acc to our question-

f(x) = Ixl

f(x) = x

f(x)=x²

Hence, function f(x) = x is a line.

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Answer:

x=5

y=-2

Step-by-step explanation:

even though this looks like they want you to do it elimination ima do substation cause I like that better

2x-y=12

   +y. +y

2x=12+y

-12    -12

2x-12=y

Now we can fill in y

3x+4(2x-12)=7

3x+8x-48=7

11x-48=7

   +48. +48

11x=55

/11. /11

x=5

fill in X to find y

2(5)-y=12

10-y=12

-10. -10

-y=2

y=-2

hopes this helps please mark brainliest

Answer:

Round to the nearest tenth.

a. 0.54 + 0.278 = 0.5 +0.3 = 0.8

b. 2.65 + 28. 17= 2.70 + 28.20 = 30.9

c. 3.09 + 2.41 + 9.86 = 3.10+ 2.40 + 9.90= 15.4

d. 15.234 + 1.37 + 0.76 = 15.20 + 1.3 + 0.8 = 17.30

e. 39.18 + 2.48+ 0.84 = 39.20 + 2.5 + 0.8 = 42.5

Round to the nearest whole number.

f. 4.112 + 3.89 = 4 + 4 = 8

g. 23.14 + 7.6 + 3.67 = 23 + 8 + 4= 35

h. 53.2 + 3.08 + 27.51 = 53 + 3+ 28 = 84

i. 11.08 + 17.28 + 92.6 = 11 + 17 + 93 = 121

j. 24.08+ 7.9 + 3.06 = 24 + 8 + 3 = 35

Step-by-step explanation:

Hopefully it's right!!!

He ran 42.1 kilometers.

A conversion factor is a number that is used to multiply or divide one set of units into another. If a conversion is required, it must be done using the correct conversion factor to get an identical value. For instance, 12 inches equals one foot when converting between inches and feet. The act or process of transforming something into a different condition or form is known as conversion. to convert a value or expression between two different forms. • Measurement: converting between different units, for as from inches to millimeters or liters to gallons. For instance, change 12 inches to millimeters. 304.8 millimeters are equal to 12 inches multiplied by the inch-to-millimeter ratio of 25.4.

Given,

A marathon is a 26.2-mile race that commemorates the run made by a greek soldier, pheidippides, that took place in 490 bce.

1 mile = 1.609

Converting miles into kilometer:

26.2 miles

= 26.2 × 1.609

= 42.1

He ran 42.1 kilometers.

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Answer:

calculate the difference ere

(3-22)+5

remove unnecessary parentheses

-19+5

calculate the sum

= -14

There will be 216 different 3-digit numbers can be formed using the digits 1, 2, 3, 4, 5, and 6 when repeated digits are allowed by fundamental counting principle.

A rule used to count the entire number of alternative outcomes in a circumstance is known as the fundamental counting principle. It asserts that if there are n ways to do something and then m ways to do something else, then there are nm methods to do both of these acts. The Fundamental Principle of Counting assists in determining how selection is made based on available options. The Fundamental Principle of Counting simplifies the approach to selection by taking into account all of the possible choices and their combinations in order to calculate the Probability.

Here,

Since there are 6 digit given,

In first place, there are 6 ways to arrange the digits. In second place, there are 6 ways to arrange the digits. In third place, there are 6 ways to arrange the digits.

This way,

6×6×6=216 ways

When repeated digits are allowed by the fundamental counting principle, 216 different 3-digit numbers can be formed using the digits 1, 2, 3, 4, 5, and 6.

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A retailer raised a shirt's original price by a certain percentage before lowering it by the same percentage. The price was increased and decreased by 40% as the final cost was 84% of the initial cost.

In essence, percentages are fractions with a 100 as the denominator. We place the percent symbol (%) next to the number to indicate that the number is a percentage. For instance, you would have received a 75% grade if you answered 75 out of 100 questions correctly on a test (75/100). A number or ratio that can be expressed as a fraction of 100 is referred to as a percentage in mathematics. If we need to calculate a percentage of a number, we should divide it by its entirety and then multiply it by 100. The percentage therefore refers to a part per hundred. Per 100 is what the word percent means. The letter "%" stands for it.

Here,

Let's say the shirt originally cost Rs 100, and we're adding t% to the price.

The new price of the shirt is therefore 100 + (t/100 * 100) = Rs. 100+t after the initial t% increase.

The price is then reduced by t%.

Cost of a new shirt: (100 + t) - (t/100)

[100+t] = (100+t)

[1-(t/100] = [(100+t)/100]

therefore, the final price is equal to 84% of Rs 100, or Rs 84.

10000 - t^2 = 84.

t^2 = 1600

 t = 40

The price was thus raised and lowered by 40%.

The original price of a shirt was increased by a specific percentage before being decreased by the same percentage by the retailer. As the final price was 84% of the initial price, the price was both increased and decreased by 40%.

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The equation 6(x + 5) = 6x + 5 has NS (No Solution) and the equation -4x = 7x - 33 has IM (Infinite Many solutions).

Let us take the given equation

6(x + 5) = 6x + 5

⇒ 6x + 30 = 6x + 5

⇒ 6x - 6x = 5 - 30

⇒ 0 = -25

Hence, the given equation has No Solution (NS)

Let us take the given equation

-4x = 7x - 33

-4x - 7x = -33

-11x = -33

x = 3

Hence, the given equations has Infinite Many solutions (IM)

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19.50 cost of pizza

Step-by-step explanation:

$8.00-$1.50 = $6.50 × 3 =19.50

Index contours are usually drawn darker than the other contours.

Index Contours are darker and wider than the other regular contour lines for ease of identification. They are labeled with elevation and also have their altitude value mentioned on the dark lines and these values represent the altitudes of the particular contours. Index contours appears after every fifth contours. If the number with contours will increase then its elevation will also increase and similarly if the number associated with contours starts to decrease then its elevation also decreases.

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Answer:

8

Step-by-step explanation:

Put the numbers in order from lowest to highest. Add all the numbers together. We will ignore a for this step. You should get 34 when adding it all together. Then if you were to add 8 to that 34 you'd get 42. Divide 42 by the amount of numbers you have which is 7. Your answer is 6. Now to make sure 8 is our value. We want to make sure the median is also 6. to find the median you need to have the numbers in order for lowest to highest and find the number in the middle. Don't forget to add your new number 8 into that order. You should get 6 as the median. Therefore our answer is 8

Answer:

3x+19

Step-by-step explanation:

Distribute:

14 x − 2 − ( 11 x − 21 ) 1 4 − 2 − ( 1 1 − 2 1 )

14 x − 2 − 11 x + 21 1 4 − 2 − 1 1 + 2 1

Add the numbers:

14x−2−11x+21

14−2−11+2

Combine like terms:

14x+19−11x

14 +19−113x+193+19

Solution: 3x+19

Answer:

3x + 19

Example:

None.

0.3814 is the probability that the sample contains two white balls and two red ones .

What is probability in math?

Total number of balls = 8 + 12 = 20

Total number of elementary cases

           = ( 20 4 )

Total number of favourable cases

           = ( 8 2 ) * ( 12 2 )

Required probability

   = ( 8 2 )  *  ( 12 2 )/( 20  4 )

 = 0.3814

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Expression x is equivalent to [tex]x^{1}[/tex] by using the exponent rule.

What do you mean by algebraic expression?

A mathematical expression that includes variables, constants, and algebraic operations is known as an algebraic expression (addition, subtraction, etc.). Terms comprise expressions.

There are three primary categories of algebraic expressions, including:

Monomial expression

Binomial expression

Polynomial expression

An algebraic expression can be divided into two additional types in addition to the monomial, binomial, and polynomial types. These are:

Numeric Expression

Variable Expression

Numeric expression - A numeric expression consists of numbers and operations, but never include any variable.

Variable expression - A variable expression is an expression that contains variables along with numbers and operation to define an expression.

As we know, exponent form [tex]x^{n}[/tex] can be simplified as [tex]x \times x\times x\times ........n~ times[/tex]

In this way ,  [tex]x^{1}[/tex]can be written as x multiplied by 1 time which is equal to x

Therefore, expression x is equivalent to [tex]x^{1}[/tex].

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The unit rate for 96 kilometers in 3 hours  is 32 kilometer per hour.

What is unit rate?

A unit is one of a particular object. An item's unit rate is its price for one of it. This is expressed as a ratio with a one as the denominator. For instance, if you covered 70 yards in 10 seconds, you covered 7 yards on average every second. Seven yards in one second and 70 yards in ten seconds are both ratios, but only one of them is a unit rate.

Given in the question,

96 kilometer in 3 hours,

In order to find unit rate we have to change given values in kilometers per hour.

Do, 96 kilometer = 3 hours

96/3 kilometer = 1 hour

Therefore, unit rate is 32 kilometer per hour.

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A parabola is a bowl-shaped figure. Hence, the vertex is [tex](\frac{1}{6},\frac{-75}{36})[/tex] and the approximate value is [tex](0.167,-2.08)[/tex].

And the x-intercept is [tex](1,(\frac{-2}{3}))[/tex].

Since the additional point is [tex](3,22)[/tex]

What is a parabola?

A curve formed by the intersection of a cone with a plane parallel to a straight line in its surface: a curve formed by a point moving so that its distance from a fixed point is equal to its distance from a fixed-line. : something that is bowl-shaped.

Here the given quadratic equation is

[tex]y=3x^{2}-x-2[/tex]

The standard form of the quadratic equation is

[tex]y=ax^{2}+bx+c[/tex]

where [tex]a=3,b=-1,c=-2[/tex]

The axis of symmetry is the x-axis  of the vertex

[tex]x=\frac{-b}{2a}\\x=\frac{1}{2(3)}\\x=\frac{1}{6}[/tex]

The y-value of the vertex is determined by substituting [tex]\frac{1}{6}[/tex] for [tex]x[/tex] into the equation and solving it for [tex]y[/tex].

[tex]y=3(\frac{1}{6})^{2}-\frac{1}{6}-2\\y=3(\frac{1}{36})-\frac{1}{6}-2\\y=\frac{3-6-72}{36}\\y=\frac{3-78}{36}\\y=\frac{-75}{36}[/tex]

Hence, the vertex is [tex](\frac{1}{6},\frac{-75}{36})[/tex] and the approximate value is [tex](0.167,-2.08)[/tex].

Since [tex]a < 0[/tex] the vertex is the maximum point and the parabola opens downward.

X-intercept values of [tex]x[/tex] when [tex]y=0[/tex]

Substituting [tex]0[/tex] for [tex]y[/tex] and solving for [tex]x[/tex] using the quadratic formula

[tex]0=3x^{2}-x-2\\x=\frac{-b+-\sqrt{b^{2}}-{4ac}}{2a}\\x=\frac{1+-\sqrt{1}-{4(3)(-2)}}{2(3)}\\\\x=\frac{1+-\sqrt({1}+{24})}{6}\\\\\\x=\frac{1+-\sqrt(25)}{6}\\\\\\\\x=\frac{1+-5}{6}\\\\\\x=\frac{1+5}{6} , x=\frac{1-5}{6}\\\x=\frac{1+5}{6},x=\frac{1-5}{6}\\\\\x=1,x=\frac{-2}{3}[/tex]

Y-intercept values of [tex]y[/tex] when [tex]x=0[/tex]

Substituting [tex]0[/tex] for [tex]x[/tex] and solving for [tex]y[/tex] using the quadratic formula

[tex]y=3(0)^{6}-0-2\\y=-2[/tex]

Y-intercept [tex](0,1)[/tex]

Now substitute [tex]3[/tex] for [tex]x[/tex] and solve for [tex]y[/tex]

[tex]y=3(3)^{2}-3-2\\y=3(9)-5\\y=27-5\\y=22[/tex]

So the point is [tex](3,22)[/tex].

Hence, the vertex is [tex](\frac{1}{6},\frac{-75}{36})[/tex] and the approximate value is [tex](0.167,-2.08)[/tex].

And the x-intercept is [tex](1,(\frac{-2}{3}))[/tex].

Since the additional point is [tex](3,22)[/tex]

The parabola is of the form

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Answer:

ask this braslate which matirias

Answer:

I Need Help On That Too

Step-by-step explanation:

ΔABC and ΔADC are congruent by angle-side-angle (ASA) postulate of triangle congruence.

In this question we have been given a quadrilateral ABCD and diagonal AC.

We need to prove triangle ABC and ADC are congruent.

In ΔABC and ΔADC,

∠BAC ≅ ∠ACD                             ...........(Given)

AC ≅ AC                                       ...........(Common side)

∠ACB ≅ ∠DAC                             ..........(Given)

ΔABC ≅ ΔADC                   ..........(ASA postulate of triangle congruence)

Therefore, ΔABC and ΔADC are congruent by angle-side-angle (ASA) postulate of triangle congruence.

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The equivalent ratio table is:

3           4

6           8

9          12

12         16

15         20

A ratio indicates the number of times one number contains another.

To find the equivalent ratio of 3/4 write the table of 3 in one column of the table and write the table of 4 in another column of the table.

The equivalent ratio table is:

3           4

6           8

9          12

12         16

15         20

The above table indicates that 3/4 = 6/8 = 9/12 = 12/16 = 15/20.

Therefore, from the table, 3/4 is equivalent to 15/20.

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B) The missing angle at the intersection point of both triangles is; x = 15°

C) The missing angle is gotten as; x = 61°

B) In the second image given, we can see two angles;

Now, we know that sum of angles in a triangle is 180 degrees. Thus, for the interior angles, we have;

90 + 5x - 14 + y = 180

where y is the third interior angle

Now, we know that sum of angles on a straight line is equal to 180 degrees. Thus;

y = 180 - (9x + 16)

Put 180 - (9x + 16) for y into the first equation to get;

90 + 5x - 14 + 180 - (9x + 16) = 180

180 will cancel out to get;

90 + 5x - 14 - (9x + 16) = 0

4x = 90 - 14 - 16

4x = 60

x = 60/4

x = 15°

C) The missing angle of the triangle with side of 12y + 3 is an alternate angle to get;

Missing angle = 63°

Sum of angles in a triangle is 180 degrees. Thus;

56 + 63 + 3rd angle = 180

3rd angle = 180 - (56 + 63)

3rd angle = 61°

Thus, x = 61° because they are opposite angles

Also, the two given sides are equal to each other as shown. Thus;

51 = 12y + 3

12y = 51 - 3

12y = 48

y = 48/12

y = 4

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Marcus is accurate. Jeremy is wrong because he overlooked the negative sign in the equation's initial addend. Since -25 has a greater absolute value than 3, it is obvious that the sum should be negative.

Marcus is correct; the solution is -22.

The simplified expression is given as:

= -(5²)+ 3

= -(25) + 3

= - 22

The right response is this. Marcus saw the bracket or parentheses symbol when he condensed his sentence. This has major significance.

Jeremy scored 28. He squared -5 without noting that it was in a bracket or parenthesis, therefore his response is incorrect.

Consequently, Jeremy calculated this.

= -(5²) + 3

= 25 + 3

= 28

Jeremy gave a false response. He made a computation but failed to see the bracket.

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Complete Question

Marcus and Jeremy both evaluated the expression −(5²) + 3. Marcus said the answer was −22. Jeremy said the answer was 28. Who is correct? Explain the error in the other student’s work.

a. The relationship between time and distance is not an arithmetic sequence, as the rate of change is not constant.

b. The distance is given by: d(n) = 5n².

An arithmetic sequence happens when the change in the output is always the same when the input changes by one, that is, the rate of change is constant.

From the table, the increases when the input(time) increases by one are given as follows:

15, 15, 35, 45.

The increases are not constant, hence the relationship between time and distance is not an arithmetic sequence.

The equation for the distance is given as follows:

d(t) = 0.5gt².

The constant is:

g = 10.

Hence:

d(t) = 5t².

At a time of n seconds, the distance is found replacing the lone instance of t by n, hence:

d(n) = 5n².

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For which population is 636363 wins a legitimate estimate of the average longest streak: Only the top 200200200 longest streaks worldwide in June

Mean = sum of data / Number of data

The 200200200 longest streaks weren't randomly selected from a larger population. They are not representative of all players in the world or Canada, but they are the top 200200200 longest streaks of all players. So,

Only the top 200200200 longest streaks worldwide in June will win.

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The numbers that add to -5 and multiply to -4 are -5.7015 and 0.7015.

There are two numbers. The addition of the two numbers is -5. The multiplication of the two numbers is -4. We need to find the two numbers. Let the first number and the second number be represented by the variables x and y, respectively. Then, we can write the two following equations.

x + y = -5

x*y = -4

We will substitute the value of y from the first equation into the second equation.

x*(-5 - x) = -4

x*(x + 5) = 4

x² + 5x - 4 = 0

Now, we will use the quadratic formula.

x = [-5 ± √(5² - 4(1)(-4))]/2(1)

x = [-5 ± √(25 + 16)]/2

x = [-5 ± √41]/2

x = [-5 ± 6.403]/2

The values of x are -5.7015 and 0.7015. The corresponding values of y are 0.7015 and -5.705.

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The calculation for the plumber's total number of hours worked is 190 = 35 + 50x, where the result is 3.1 hours.

A linear equation is what?

It is described as the relationship between two variables, and a straight line results from plotting the graph of the linear equation.

The equation is referred to as a linear equation in one variable if just one variable is contained in the linear equation.

It follows that:

Jerald chooses to call a plumber after discovering a problem with his home's drains.

The plumber bills him $35 to visit his home and $50 per hour of work.

Suppose there are x hours in a day:

190 = 35 + 50x

50x = 155

x=3.1 hours

As a result, the answer to the question of how many hours the plumber worked is 190 = 35 + 50x, which is 3.1 hours.

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Answer: 1 solution

Step-by-step explanation:

3(d+11)=6(d+33)

simplifing the above equation

3d+33=6d+198

3d-6d=198-33

-3d=165

d= -165/3

d=-55

Answer:

b. 1

Step-by-step explanation:

3d + 33 = 6d + 198

3d - 6d = 198-33

-3d = 165

thus, d = -165/3

           = -55