Solving systems of inequalities

Answer:

[tex]y=-6+\frac{2x}{5}[/tex]

Explanation

we have a linear function, to graph a linear function you need 2 points

Step 1

find 2 coordinates of the line

a) when x= 0

then

b)when x=2

Step 2

now, draw a line that passes through the points

I hope this helps you

The comparison of 364, 879; 463, 000; 436, 765 using scientific notation ,number has the least value is 3.64879 x 10⁵ .

As given in the question,

Converting 364, 879 using scientific notation, 364, 879 = 3.64879 x 10⁵

Converting 463, 000 using scientific notation, 463, 000 = 4.63 x 10⁵

Converting 436, 765 using scientific notation, 436, 765 = 4.36765 x 10⁵.

Hence when ordered in ascending terms, using scientific notations, the given numbers can be arranged as follows:

3.64879 x 10⁵ <  4.63 x 10⁵ < 4.36765 x 10⁵.

First term 364, 879 has the least value, since it is the smallest number.

Therefore,  comparison of 364, 879; 463, 000; 436, 765 using scientific notation ,number has the least value is 3.64879 x 10⁵.

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Answer:

I believe it is -123

Step-by-step explanation:

you have to replace all the x's with -4 so you would do the equation -6(-4)^2+8(-4)+5

-6(-4)^2 is -96

-96+8(-4) is -128

-128+5 is -123

On 300 call the station first give away all three prizes to one caller.

The smallest positive integer that is divisible by both a and b is known as the least common multiple (lcm), lowest common multiple (lcm), or smallest common multiple of two numbers a and b in mathematics and number theory. The LCM method is used to determine the least multiple of two or more numbers. Least Common Multiple is referred to as LCM. The LCM of two numbers can be divided by both of them. The LCM of 6 and 8 is 24, for instance. 24 can be divided by both 6 and 8.

Given Data

A radio station gives away $15 to every 15th caller, $25 to every 25th caller, and free concert tickets to every 100th caller.

To find When will the station first give away all three prizes to one caller, we will take LCM

5      15 , 25, 100

5       3, 5 , 20

3     3, 1 , 4

4       1, 1 , 4

LCM = 5² × 3× 4

LCM = 300

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Answer:

the anwser is 100x69 yes

Hence, the derivative of [tex]g(x)=8x^5+x^4-5x^2+6[/tex] is [tex]g`(-4)=10536[/tex].

What is the derivative?

The derivative is a way to show instantaneous rate of change: that is, the amount by which a function is changing at one given point.

Here given function is

[tex]g(x)=8x^5+x^4-5x^2+6[/tex]

So,

[tex]g`(x)=5(8x^4)+4x^3-2(5x)\\\\g`(x)=40x^4+4x^3-10x\\\\x=-4\\\\g`(-4)=40(-4)^4+4(-4)^3-10(-4)\\\\g`(-4)=40(256)+4(64)+40\\\\g`(-4)=10240+256+40\\\\g`(-4)=10536[/tex]

Hence, the derivative of [tex]g(x)=8x^5+x^4-5x^2+6[/tex] is [tex]g`(-4)=10536[/tex].

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Answer:

90 degrees

Step-by-step explanation:

We can take a look at that each these triangles are in truth right triangles, seeing that the two angles of and both have measures of 90 degrees.

In this case, we'll have to carry out several steps to find the solution.

Step 01:

data:

property value = $496300

tax rate = 1.825%

Step 02:

percentage:

property tax:

= 1.825 / 100 = 0.01825

property tax = property value * tax rate

$496300 * 0.01825 = 9057.475$

The answer is:

property tax =

Given:

f(X) will be differentiated by chain rule.

From geogebra

Answer Letter A

Answer:

x = 15

Step-by-step explanation:

[tex]4 + \frac{x}{3} = 9[/tex]

[tex] \frac{x}{3} = 5[/tex]

[tex]x = 15[/tex]

Answer:

x = 15

Step-by-step explanation:

Subtract 3 from each side: 12 + x = 27

Subtract 12 from both sides: x =27 − 12

Subtract 12 from 27 to get 15: x = 15

The non-real solutions of the polynomial expression are x = (2 + i√26)/3 and  x = (2 - i√26)/3

The equation of the polynomial expression is given as:

3x^3 + 14x^2 - 14x + 60 = 0

From the question, we have

Real solution = -6

Rewrite the above equation as

x = -6

Add 6 to both sides of the equation

So, we have

x + 6 = 0

The next step is to divide the polynomial equation 3x^3 + 14x^2 - 14x + 60 = 0 by x + 6 = 0

This is represented as

3x^3 + 14x^2 - 14x + 60/x + 6

Using a graphing calculator, we have

3x^3 + 14x^2 - 14x + 60/x + 6 = 3x^2 - 4x + 10

Next, we determine the solution of the quadratic expression 3x^2 - 4x + 10 using a quadratic formula

So, we have

x = (-b ± √(b² - 4ac))/2a

This gives

x = (4 ± √((-4)² - 4 * 3 * 10))/2 * 3

So, we have

x = (4 ± √-104)/6

This gives

x = (4 ± 2√-26)/6

Divide

x = (2 ± √-26)/3

Rewrite as

x = (2 ± i√26)/3

Split

x = (2 + i√26)/3 and  x = (2 - i√26)/3

So, the conclusion is that

Using the polynomial expression, the non-real solutions are x = (2 + i√26)/3 and  x = (2 - i√26)/3

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The mapping diagram above does not represent a function since

for each number in Set A (the input) where there are multiple mappings

from Set B (the output).

In Mathematics, a function simply refers to a mathematical expression which is typically used for defining and representing the relationship that exists between two or more variables such as an ordered pair.

This ultimately implies that, a function is typically used in mathematics for uniquely mapping an input variable (Set A) to an output variable (Set B).

Based on the mapping diagram shown above, we can reasonably infer and logically deduce that Set A with inputs (-4, 8), (1, 8) and (1, -3) are ordered pairs which does not represent a function because they indicate multiple mappings in Set B (the output).

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SOLUTION

Given the question in the image, the following are the solution steps to answer the question.

STEP 1: Define a quadratic equation that does not passes through the x-axis

When a quadratic function never crosses the x-axis, then it has no real roots or solutions. Hence, the discriminant must be negative. meaning the solutions are imaginary/complex.

Hence, the answer will be:

The function has two imaginary roots

The first step to find the value of 'x' in this expression is to calculate the product with the parenthesis term:

Then, we need to isolate in one side of the equation the terms with the variable 'x', and in the other side the terms without the variable 'x'. Then, we can calculate the value of x:

So the value of x in this expression is -7

Answer:

D

Step-by-step explanation:

...................

The solutions to the quadratic equation x² + 10x - 13 = 17 are x = -5 + √55 and x = -5 - √55. The correct answer is option D.

The quadratic equation is given as:

x²+10x-13 =17

Move the constant term to the right side of the equation:

x² + 10x - 13 - 17 = 0

x² + 10x - 30 = 0

Take half of the coefficient of the x-term (10) and square it: (10/2)² = 25.

Add the squared value to both sides of the equation:

x² + 10x + 25 - 30 = 25

(x + 5)² - 30 = 25

Simplify the equation:

(x + 5)² = 25 + 30

(x + 5)² = 55

Take the square root of both sides of the equation:

√((x + 5)²) = ±√55

x + 5 = ±√55

Solve for x by subtracting 5 from both sides:

x = -5 ± √55

Therefore, the solutions to the equation x² + 10x - 13 = 17 are:

x = -5 + √55 and x = -5 - √55.

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After solving the equations we can conclude that the two numbers are 265 and 137.

So, let the first number be 'x' and the second is 'y'.

Now, the two equations can be formed as:

Merge equations as follows:

So x will be:

Therefore, after solving the equations the two numbers are 265 and 137.

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1220 km apart

rates

320 km/ hr

290 km/hr

___________________________________

x= t* rate

t = time in hours

x = distance in km

__________________

total distance = t1 * 320 Km/h + t2* 290 km/h

because they started at the same time

Total distance = 1220 km = t * 320 Km/h + t* 290 km/h

1220 = (320 + 290 ) t

1220 = 610 t

t = 1200/ 610

t = 2 hours

_______________________--

Answer

2 hours

Jimmy would've jogged 32.02m if he ran through a straight line by Pythagorean theorem.

What is Pythagorean theorem?

We can proceed to use this to find the distance from point a to point b assuming he ran through a straight line.

Mathematically, the theorem can be expressed as

              x² = y²  +  z²

Let's substitute the values into the equation and solve

     x² = 20²  + 25²

      x = 32.02m

Jimmy would've jogged 32.02m if he ran through a straight line.

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An example of two fraction whose product is an integer due to common factors is [tex]\frac{6}{3}[/tex].

Any number of equal parts is represented by a fraction, which also represents a portion of a whole. A fraction, such as one-half, eight-fifths, or three-quarters, indicates how many components of a particular size there are when stated in ordinary English.

What is a common factor?

The largest positive integer that divides each of the integers is known as the greatest common divisor of two or more non-zero integers. The greatest common divisor of two integers x and y is indicated by the display style "gcd"

Given that,

Two fraction whose product is an integer due to common factor.

The fraction is

[tex]\frac{6}{3}[/tex].

Since,

2 x 3 = 6

1 x 3 = 3

Here, 3 is the common factor.

[tex]\frac{6}{3}[/tex] = 2

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The constant of proportionality for the equation y = 2x is k = 2.

The number of pieces of fruit the monkey can eat is two times the amount of time the monkey takes.

The equation y = 2x can be used to represent a monkey eating 24 pieces of fruit in 12 hours.

The constant of proportionality, which is a fixed value that represents the rate at which two or more ratios rise or decrease, is used to compare them. The result of dividing the denominator by the numerator when a ratio is expressed as a fraction is the constant of proportionality.

When a ratio is expressed as a fraction, the constant of proportionality is found by dividing the denominator by the numerator. The constant of proportionality, k, can be calculated from the equation if x is the ratio's numerator and y is its denominator.

k = y/x

Therefore, the constant of proportionality in this case is:

y = 2x

k = y/x = 2

The constant of proportionality in this case represents that the number of pieces of fruit a monkey eats is two times the amount of time the monkey takes.

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Answer:5in

Step-by-step explanation:

1. Identify the triangle

you are given a right triangle with the hypotonus missing and are given the side lengths 3 and 4 you know the hypotonus is 5 by the 3,4,5 Pythagorean tripe, if you do not notice this it can be solved with the Pythagorean theorem a^2+b^2=c^2

2. solve (if not done with 3,4,5 triple)

3^2+4^2=c^2

9+16=c^2

25=c^2

5=c | square root both sides to cancel the square

Is valid proportion here

(10 + 5 )/ 18 = 10/d

then find d

d= 18• 10/ (10+5)

d= 180/15 =

d= 12

Then answer is

d = 12 mm

The elements in the set A'∩B is { z } .

Set theory is a branch of mathematical logic that studies sets, which are essentially collections of objects.

Given universal set U = {q, r, s, t, u, v, w, x, y, z}

set A = {q, s, u, w, y}

∴A' = {r, t, v, x, z}

set B =  {q, s, y, z}

Now A'∩B = { z }

Hence the elements in the set A'∩B is { z } .

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The total number of terms in the given expression 2x + 7 is equal to two.

As given in the question,

Expression is given by:

2x + 7

Number of terms in the given expression 2x + 7  are as follow:

7 is the constant term of the given expression 2x + 7

x is the variable which is multiply by two written as 2x in the given expression 2x + 7.

Both the terms 7 and 2x in the given expression are related with the operation addition'+'

Therefore, the total number of terms in the given expression 2x + 7 is equal to two.

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we have the equation

i will assume

a=2

b=5

c=3

d=5

solve for x

substitute the given values

subtract 3 both sides

Divide by 2 both sides

squared both sides

the values of x are

x=-4 and x=-6

Verify each solution

For x=-4

x=-4 ------> is a solution

Verify x=-6

Is not true

therefore

x=-6 --------> is an extraneous solution