what is -6p - 3 = 9 plz help quick​

Answer:

second option

Step-by-step explanation:

(2 \(\frac{4}{5}\) )( - 5 \(\frac{2}{3}\) ) ← convert mixed numbers to improper fractions

= \(\frac{14}{5}\) × - \(\frac{17}{3}\)

= - \(\frac{14(17)}{5(3)}\)

= - \(\frac{238}{15}\)

= - 15 \(\frac{13}{15}\)

Hello !

\(a - (a - b) - b - (b - a)\\\\= a - a + b - b - b+a\\\\\boxed{= a - b}\)

Answer:

Step-by-step explanation:

a - ( a - b ) - b - ( b - a )

= a - a + b - b - b + a

= a - b

The solution to the inequality expression given as -3 < v - 5/6 is v > -13/6

From the question, the inequality expression is given as

-3 < v - 5/6

Add 5/6  to all sides of the above inequality expression

So, we have the following equation

5/6 -3 < v - 5/6 + 5/6

Evaluate the like terms in the above expression

So, we have the following equation

-13/6  < v - 0

Rewrite the above expression as

-13/6  < v

So, we have

v > -13/6

Hence, the solution is v > -13/6

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By completing the square, the equation in standard form is (x - 2)² + (y + 4)² = 4².

In Mathematics and Geometry, the standard form of the equation of a circle is modeled by this mathematical equation;

(x - h)² + (y - k)² = r²

Where:

From the information provided below, we have the following equation of a circle:

x² - 4x + y² + 8y = -4

x² - 4x + (-4/2)² + y² + 8y + (8/2)² = -4 + (-4/2)² + (8/2)²

x² - 4x + 4 + y² + 8y + 16 = -4 + 4 + 16

(x - 2)² + (y + 4)² = 16

(x - 2)² + (y + 4)² = 4²

Therefore, the center (h, k) is (2, -4) and the radius is equal to 4 units.

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Complete Question:

Complete the square to rewrite the following equation in standard form. x² - 4x + y² + 8y = -4.

A scatterplot that shows the number of hours studied on the x-axis and the number of errors on the y-axis would best support the teacher's observation.

Error in math is an incorrect answer to a mathematical equation or problem. It can be caused by a variety of factors, such as inaccurate calculations, misreading instructions, or not understanding the problem. Error in math can be frustrating and can lead to poor grades, but it can also be an opportunity for learning and growth. With the proper guidance and understanding, students can learn from their mistakes and become better mathematicians.

The scatterplot would likely show a negative correlation, with the number of errors decreasing as the number of hours studied increases. This indicates that as students study more, their performance on multiplication tests improves. It could also show an outlier or two, which could indicate that some students are able to learn multiplication facts more quickly than others.

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Answer:

the probability that the first groupmate you meet has studied some statistics is 0.45

Step-by-step explanation:

From the information given :

A professor divided the students in her business class into three groups

Let consider then to be :

Group            Statistics Class

A                    Never taken a statistics class

B                    Taken one statistics class

C                     Taken two or more statistics class.

If 55% of the students have never taken a statistics class,

Then ;

P(A) = 0.55

25% have taken only one semester of a statistics class

Then P(B) = 0.25

and the rest have taken two or more semesters of statistics

Then P(C) = 1 - 0.55 -0.25

P(C) = 1 - 0.80

P(C) = 0.20

The objective is to determine the probability that the first groupmate you meet has studied some statistics

The probability of the first groupmate you meet has studied some statistics = 1 - P(never taken a statistics course)

Let the  probability of the first groupmate you meet that  has studied some statistics be P(D)

Then P(D) = 1 -  P(A)

P(D) = 1 - 0.55

P(D) = 0.45

the probability that the first groupmate you meet has studied some statistics is 0.45

Answer:

30%

Step-by-step explanation:

smart highschooler brain

Answer: x=27

Step-by-step explanation:

To find the domain of the function f(x, y) = ln(16 − x^2 − 16y^2), we need to determine the values of x and y for which the function is defined.

The natural logarithm function ln(x) is defined only for positive values of x. Therefore, for the given function to be defined, the expression inside the logarithm (16 − x^2 − 16y^2) must be greater than zero.

Setting 16 − x^2 − 16y^2 > 0, we can solve for the values of x and y that satisfy this inequality:

16 − x^2 − 16y^2 > 0

-x^2 − 16y^2 > -16

x^2 + 16y^2 < 16

This is the inequality of an ellipse centered at the origin with semi-major axis length 2 and semi-minor axis length 1. Therefore, the domain of the function f(x, y) is the interior of this ellipse.

To sketch the domain, draw the ellipse centered at the origin and shade the interior of the ellipse. The shaded region represents the domain of the function.

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Answer:

The value of the stock can be found by: x × 1.26.

Step-by-step explanation:

The value of the stock in year one can be found by multiplying x by 1.4. This will represent a 40% increase in value. The following year, the stock decreases in value by 10%; this is represented by multiplication by 0.9. For example, if the value of the stock was $5:

5 × 1.4 = 7                    (A 40% increase in value)

(5 × 1.4) * 0.90 = 6.3   (A further 10% decrease in value)

Rather than writing out the long version, we can simplfify by multiplying 1.4 by 0.9 to get 1.26 .We can also replace 5 with x to get a more general equation.

Answer: y = -3/5x - 6

Step-by-step explanation:

There are a few equations that can be used for this, but the simplest one would be y = mx + b

We are given:

y = -3

m = -3/5 (slope)

x = -5

b = ?

Our equation is this, we are solving for b

==> -3 = -3/5 ( -5) + b

==> -3 = -3/5 ( -5) + b ( multiply the brackets)

==> -3 = 3 + b ( subtract 3 to both sides)

==> -6 = b

Now we can make the desired equation in slope intercept form;

y = -3/5x - 6

Hope this helped! Have a great day :D

Answer:

x = 70 degrees

Step-by-step explanation:

Answer:

x = 70°

Step-by-step explanation:

Because it is an isosceles triangle, the two base angles are the same (55° and 55°)

All triangles angles must add up to 180°, so 180-55-55 will give us the missing angle (x).

180-55-55 = 70

x = 70°

The graph is given by y =3/8 x.

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form  or

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

Remember that

The unit rate of change is the same as the slope

so

The linear equation is equal to

y = 3/8 x

To graph the line we need two points

we have (0,0) because the line passes through the origin

Determine other point

assume a value of x and calculate the value of y

The other point is (8,3)

Plot the points and join them to draw the line

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The probability best prediction for the number of times that Ellen will draw a blue marble is 200.

Number of blue marbles: 222

Number of red marbles: 333

Total number of marbles: 555

Probability of drawing a blue marble:

222/555

= 0.4

Number of times drawing a blue marble:

300300300 x 0.4

= 120,120,120

Rounded to nearest whole number:

120,120

Ellen has a bag with 333 red marbles and 222 blue marbles in it. She is going to randomly draw a marble from the bag 300300300 times, putting the marble back in the bag after each draw. The best prediction for the number of times that Ellen will draw a blue marble is 200. This prediction is based on the fact that there are more red marbles than blue marbles in the bag. To calculate this, we first need to determine the probability of drawing a blue marble; there are 222 blue marbles out of 555 total marbles, so the probability is

222/555

= 0.4.

Multiplying this by the total number of draws (300300300) gives us 120,120,120. Rounding this to the nearest whole number gives us our prediction of 200 times.

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The opposite side of the right triangle (x) is approximately 6.888 inches long.

To solve this problem, we can use the trigonometric ratio for the sine function, which is opposite/hypotenuse. We have the hypotenuse as 12 inches and the opposite angle as 35 degrees, so we can set up the equation:

sin(35) = opposite/12

To solve for the opposite, we can multiply both sides by 12:

opposite = 12 * sin(35)

sin(35) as approximately 0.574:

opposite = 12 * 0.574

opposite ≈ 6.888

Therefore, the opposite side of the right triangle (x) is approximately 6.888 inches long.

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ANSWER

NO CORRELATION

The solution of the initial-value problem x²dy - 2xy = 4y⁴, y(1) = 3 is y = -4/21 x² + 67/21 x⁻⁴.

To solve the given initial-value problem, we need to integrate the Bernoulli equation.

Then we can find the value of y with respect to x.

Given, Bernoulli equation: x²dy - 2xy = 4y⁴ We can convert this into standard linear form by dividing both sides by y⁴.x²dy/y⁴ - 2x/y³ = 4 Now, we substitute u = y⁻³ => du/dy = -3y⁻⁴ dy=> dy = -y⁴ du/3

Using this substitution, we can rewrite the Bernoulli equation as follows.

x² (-y⁴ du/3) / y⁴ - 2x y³ u = 4x²y⁴du/3- 2x y³ u = 4x²y⁴du/3(x²y)’u + 2x y³ u = -4/3x² After applying the integrating factor μ = e^(∫2/x dx), we get the following result.μ(x) = e^(2 ln |x|) = x²x⁻²(x²y)’e^(2 ln |x|) + 2(x⁻¹y³ e^(2 ln |x|)) = -4/3x²

Now, we can integrate both sides w.r.t x using substitution, z = x³.(x⁶y)’ = -4/3x⁴ + c => y = -4/21 x² + cx⁻⁴. Using the given initial value y(1) = 3, we can solve for c.3 = -4/21 + c => c = 67/21

So, the solution of the initial-value problem x²dy - 2xy = 4y⁴, y(1) = 3 is y = -4/21 x² + 67/21 x⁻⁴.

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The line passes through the two points (-2,-9) and (3,-16).

We can write an equation in point-slope form using the following formula for the line passing through the point (-2,-9) and having a slope of m = -7/5:

y - y1 = m(x - x1)

where m is the slope of the line and (x1,y1) is the line's point.

Inputting the values provided yields:

y - (-9) = (-7/5)(x - (-2))

Simplifying:

y + 9 = (-7/5)(x + 2)

To get rid of the fraction, multiply both sides by 5. This gives us:

5y + 45 = -7(x + 2)

As we enlarge and rearrange, we obtain:

7x + 5y + 59 = 0

This is the line's standard form equation.

We can locate two points on the line and plot them to create a graph of the line. We can utilise the y-intercept, which is obtained by solving for y while setting x=0 in the equation:

7(0) + 5y + 59 = 0

5y = -59

y = -59/5

The y-intercept is therefore (0,-59/5). Using the slope, we may also locate a different point on the line:

m = -7/5

Beginning at (-2,-9), we can travel 7 units left and 5 units right to reach a different point:

(-2+5, -9-7) = (3, -16) (3, -16)

Hence, the line traverses both of the following two points: (3,-16).

Here is the line's graph:

     |

     |

*    |

 \   |

  \  |

   \ |

    \|

-------*-----------------

     |

    3|

     |

    2|

     |

    1|

     |

     |

     |

     |

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The answer is:

\(\sf{y+9=-\dfrac{7}{5}(x+2)}\)

Work/explanation:

We need to determine the line's equation.  I will begin by writing the equation in point slope form:

\(\mapsto\phantom{333}\sf{y-y_1=m(x-x_1)}\)

where m = slope and (x₁,y₁) is the point

Plug in the data:

\(\sf{y-(-9)=-\dfrac{7}{5}(x-(-2)}\)

Simplify

\(\sf{y+9=-\dfrac{7}{5}(x+2)}\)

Answer:

The mathematical property demonstrated by the statement 3 + (-6) = -6 + 3 is the commutative property of addition.

This states that: A + B = B + A

The commutative property of addition is the property that is demonstrated by the formula "3 + (-6) = -6 + 3".

This characteristic states that the sum is unaffected by the sequence in which two numbers are added. In other words, a + b = b + a for any two numbers a and b.

In this instance, the left side has 3 + (-6) which equals -3. We have -6 + 3 on the right side, which also equals -3. This indicates that the result is unaffected by the sequence in which the numbers are added.

We can thus write:

3 + (-6) = -6 + 3

-3 = -3

This demonstrates the truth of the assertion and serves as an illustration of the commutative property of addition.

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Answer:

y=2/3

y=4

x=1

Step-by-step explanation:

y=2/3

y=x+3

x= -2x+3

x+2x=3

3x=3

x=3/3

x=1

The solution to the system of equations is y=2/3 and x=1.

We have given that,

y = A system of equations. y equals StartFraction 2 over 3 EndFraction x plus 3.

x equals negative 2.

A set of simultaneous equations, also known as a system of equations or an equation system, is a finite set of equations for which common solutions are sought.

y=2/3

y=x+3

x= -2x+3

x+2x=3

3x=3

x=3/3

x=1

The solution to the system of equations is y=2/3 and x=1.

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Answer:

100% -> 75

1% -> 0.75

75-55=20

20 ÷ 0.75 =26.666666.........

               ≈ 27%

Answer:

y = 7

Step-by-step explanation:

y-4 = 3

Add 4 to both sides of the equation so the y is 'isolated' (alone).

y - 4 + 4 = 3 + 4

Now simplify

y-0 = 7

y = 7

Answer: y = 7

Step-by-step explanation:

y - 4 = 3

add 4 to both sides.

this becomes y - 4 + 4 = 3 +4

                       y + 0 = 7

                       y = 7

Answer:

19.79+x >= 25

x>=5.21

Step-by-step explanation:

Answer:

29x-41y-11z

Step-by-step explanation:

Answer:

29 x − 41 y- 11 z

Step-by-step explanation:

Answer:

the 3rd one is not linear

y= x to the 2nd power

The system of equations is consistent and has a unique solution at (-4, 1).

To solve the system of equations by graphing, we can plot the lines represented by each equation on a coordinate plane and find their point of intersection.

The given system of equations is:

1) 3x + y = -3

2) 6x - 6y = -30

Let's graph these equations:

For equation 1, 3x + y = -3, we can rewrite it as y = -3x - 3.

For equation 2, 6x - 6y = -30, we can simplify it to x - y = -5, and then y = x + 5.

Now, let's plot these lines on a graph:

The line for equation 1, y = -3x - 3, has a slope of -3 and y-intercept of -3. It will have a negative slope, and we can plot two points on the line: (0, -3) and (-1, 0).

The line for equation 2, y = x + 5, has a slope of 1 and y-intercept of 5. We can plot two points on this line as well: (0, 5) and (-5, 0).

Plotting these lines on a graph, we can see that they intersect at the point (-4, 1).

Now, let's analyze the system:

Since the lines intersect at a single point, the system is consistent. The solution to the system is the coordinates of the point of intersection, which is (-4, 1).

In summary, the system of equations is consistent and has a unique solution of x = -4 and y = 1.

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The lengths of the cord will be 5 centimeters and 1 centimeter such that its sum is 6 cm while the difference is 4 cm.

Determine the known quantities and designate the unknown quantity as a variable while trying to set up or construct a linear equation to fit a real-world application.

In other words, an equation is a set of variables that are constrained through a situation or case.

Suppose, the bigger length is l while the smaller length is w.

Sum l + w = 6

Difference l - w = 4

Add both equations,

2l = 10

l = 5 cm

And, w = 6 - 5 = 1 cm

Hence "The lengths of the cord will be 5 centimeters and 1 centimeter such that its sum is 6 cm while the difference is 4 cm".

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Answer:

No table shown.

Step-by-step explanation:

Where’s the table?

Answer:

it is c

Step-by-step explanation:

Answer:

0.7

Step-by-step explanation: (4/5)*7)/8

Hope this helps:)