Inga is solving 2x2 + 12x – 3 = 0. Which steps could she use to solve the quadratic equation? Select three options. Group of answer choices 2(x2 + 6x + 9) = 3 + 18 2(x2 + 6x + 9) = –3 + 9 2(x2 + 6x) = –3 x + 3 = Plus or minus StartRoot StartFraction 21 Over 2 EndFraction EndRoot 2(x2 + 6x) = 3

Answer:As you can see, this line is vertical! It goes directly up. We know that because the equation says that X is equal to -3. It is telling us that no matter what the Y value is, X will be -3.

Step-by-step explanation:

The equation to find slope is to take two points

(A,B) and (C,D) and to do the following equation: D−B

                                                                               ______

                                                                                  C−A

So, let's take two points. Let's say that Y is equal to 3 and 2. In that case, since X is always -3, our points would be (−3,2) and (−3,3).

Now, let's substitute into our formula.

3−2                       1         1

------ =                  ----- =   ---

3 (−3) (subtract)  -3 + 3   0

As you can see, the final slope is 1/0

. If you put that into your calculator, it will come out as undefined, because any number divided by zero is undefined. And so your slope for any vertical line is undefined.

The average rate of change of the function at the interval x = 5 to x = 9 is 1.25

The interval is given as

x = 5 to x = 9

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

x = 5 and y = 15

x = 9 and y = 20

This means that

f(5) = 15 and f(9) = 20

The average rate of change is then calculated as

Average rate of change = [f(9) - f(5)]/[9 - 5]

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

Average rate of change = [20 - 15]/[9 - 5]

Evaluate

Average rate of change = 1.25

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Answer:

1.  y=2x−5

2.  y=-x-4

3. y=-1/2x+1

Step-by-step explanation:

First Question:

We are given (3, 1) and (1, -3)

The slope is the difference of y-values over x-values. From this we get:

(1−−3)/(3−1)=4/2=2

Now, we want to find the y-intercept. To do this, we plug our slope and one of our points into the slope intercept equation: y=mx+b

Plugging in (3, 1) gives us         1=3∗2+b    ⇒    b=1−6 = −5

We have our slope and y-intercept now, so the equation is y=2x−5.

Second Question:

We are given (-4, 0) and (1, -5)

The slope is

(-5-0)/(1--4)=-5/5=-1

Now, we want to find the y-intercept. To do this, we plug our slope and one of our points into the slope intercept equation: y=mx+b

Plugging in (-4, 0) gives us         0 = -1∗-4+b    ⇒    b = -4

We have our slope and y-intercept now, so the equation is y=-x-4.

Third Question:

We are given (-6, 4) and (-2, 2)

The slope is

(4-2)/(-6--2)=2/48=-1/2

Now, we want to find the y-intercept. To do this, we plug our slope and one of our points into the slope intercept equation: y=mx+b

Plugging in (-2, 2) gives us         2 = -1/2∗-2+b    ⇒    b = 2-1 = 1

We have our slope and y-intercept now, so the equation is y=-1/2x+1

Answer:

1 < x < 8

Step-by-step explanation:

x² - 9x + 8 < 0

(x-8)(x-1) = 0

x = 8

x = 1

these are the points where the parabola intercepts the x axis. We have to find when it is under x axis

1 < x < 8

The value of x is 18 if ∠C and ​ ∠D ​ are vertical angles. m∠C = 5x - 7 and m∠D = 8x – 55.

It is defined as the angles when two lines intersect each other and at the intersecting point, some pair of angles are formed which we call vertically opposite angles, as the name describes that they have vertically opposite angles.

It is given that:

∠C and ​ ∠D ​ are vertical angles.

From the definition of the vertically opposite angles:

5x-7 = 8x-55

After solving we get:

-7 = 3x -55

3x = 48

x = 16

Thus, the value of x is 18 if ∠C and ​ ∠D ​ are vertical angles. m∠C = 5x - 7 and m∠D = 8x – 55.

The complete question is:

∠C and ​ ∠D ​ are vertical angles. m∠C = 5x - 7 and m∠D = 8x – 55. What is m∠D ?

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There are 3 extreme points does the function g(x) = (2 - x) x².

A relation between a set of inputs having one output each is called a function.

Given that;

The function is,

⇒ g ' (x) = (2 - x) x²

Now,

Since, The function is,

⇒ g ' (x) = (2 - x) x²

We know that;

The extreme points are find as;

⇒ g ' (x) = 0

So, We get;

⇒ g ' (x) = 0

⇒ (x - 2) x² = 0

This gives two values as;

⇒ (x - 2) = 0

⇒ x = 2

And, x² = 0

⇒ x = 0, 0

Thus, The extremes values are;

⇒ x = 2 , 0, 0

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x[tex]x\geq 6[/tex].

[tex]\frac{1}{2}x \geq 3[/tex]

[tex]\frac{\frac{1}{2}}{\frac{1}{2} } x\geq \frac{3}{\frac{1}{2} }[/tex]

Dividing by a fraction of the same as multiplying by its multiplicative inverse. Since the multiplicative inverse of 1/2 is 2/1, we may rewrite as:

[tex]\frac{2}{1} *\frac{1}{2} x\geq \frac{2}{1} *3[/tex]

[tex](1)x\geq(6)\\ \\x\geq6[/tex]

[tex]\frac{1}{2}(6) \geq 3\\ \\3\geq 3[/tex]

Correct!

x[tex]x\geq 6[/tex].

The equation is written as 3x + x - 2 = 11(2). Then the value of the variable 'x' is 6.

The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.

The borders of the square and the square shape underneath are something similar.

Perimeter of the square = Perimeter of the rectangle

4a = 2(L +  W)

2a = L + W

If the area of the square is 121 square inches. Then the side length of the square is given as,

a² = 121

a = 11 inches

And the dimension of the rectangle is 3x and x - 2. Then the equation is given as,

3x + x - 2 = 11 (2)

4x - 2 = 22

4x = 24

x = 6

The equation is written as 3x + x - 2 = 11(2). Then the value of the variable 'x' is 6.

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To find the ordered pair that is the solution to the equation y = (1/3)x - 4, we need to solve the equation for x.

To do this, we can first add 4 to both sides of the equation to get y + 4 = (1/3)x. Then, we can multiply both sides of the equation by 3 to get 3y + 12 = x.

Therefore, the ordered pair that is the solution to the equation y = (1/3)x - 4 is (12, 3y).

Note that the value of y is unknown in this solution. In order to find the exact solution, we would need to know the value of y. For example, if y = 2, then the ordered pair that is the solution to the equation y = (1/3)x - 4 is (12, 6).

The probability that the small bowl contains more cereal than the large​ one is 0.0228.

Given :

The amount of cereal that can be poured into a small bowl varies with a mean of 1.5 ounces and a standard deviation of 0.3 ounces. A large bowl holds a mean of 2.5 ounces with a standard deviation of 0.4 ounces. You open a new box of cereal and pour one large and one small bowl.

we know that,

z = x - μ / σ

here

x = 0

μ = 1

σ = 0.5

= 0 - 1 / 0.5

= -1/0.5

= -1 / 05 / 10

= -1 * 10 / 5

=  -10 / 5

= -2

if z = -2 then p value = 0.0228

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Full question :

The amount of cereal that can be poured into a small bowl varies with a mean of 1.5 ounces and a standard deviation of 0.3 ounces. A large bowl holds a mean of 2.5 ounces with a standard deviation of 0.4 ounces. You open a new box of cereal and pour one large and one small bowl.

If the difference follows the Normal​ model, what's the probability that the small bowl contains more cereal than the large​ one?

The expression -16x^(-3/2) represents a term that has a coefficient of -16 and a variable x raised to the power of -3/2.

Generally, The expression -16x^(-3/2) represents a term that consists of a coefficient of -16 and the variable x raised to the power of -3/2.

In general, the exponentiation operator (^) represents the idea of raising a number (called the base) to a certain power (called the exponent). For example, x^2 means "x raised to the power of 2" and can be calculated as x * x = x^2.

Similarly, x^3 means "x raised to the power of 3" and can be calculated as x * x * x = x^3.

The exponent -3/2 means that the base (in this case, x) is raised to the power of -3/2. This can be simplified as follows:

x^(-3/2) = 1 / x^(3/2) = 1 / (x^(3/2))

The expression -16x^(-3/2) can then be simplified as follows:

-16x^(-3/2) = -16 * 1 / x^(3/2) = -16 / x^(3/2)

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The complete Question was not found

Answer:

A (0, -3) translated to the right 4 units.

Step-by-step explanation:

If you go right 4, you get (4, -3)

The range of u(x) = {-15, -5,1,3,1, -5, -15} and range of v(x)= {-3,-2, -1,0,1,2,3} for the domain of x = { -3,-2,-1,0,1,2,3}

The domain of a function is defined by the set of the values of independent variables and the ranges are the set of values of dependent variables.

The domains act as an input of function where ranges act as an output.

We select domain randomly as domain are the set of independent variables. But how will be the ranges must depend on the function given us.

we are given 2 function u(x) = -2x²+3 and v(x)

for the 1st function the set of domain and ranges are different, but the domain and ranges have the same values for the 2nd function.

we select domain x= {-3, -2, -1, 0, 1, 2, 3}

the ranges for u(x) ={ -15, -5, 1, 3, 1, -5 , -15}

because, u(-3) = -2(-3)²+3 = -15

                u(-2) = -2(-2)²+3 =-5

               u(0) = 3

similarly, for the same set of x value, v(-3) = -3

                                                         v(-2) = -2

                                                         v(0) =0

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Answer:

Hey there!

Step-by-step explanation:

This is ur answer...

The calculus of variations is a field of mathematics about solving optimization problems. This is done by minimizing and maximizing functionals. The methods of calculus of variations to solve optimization problems are very useful in mathematics, physics and engineering.

Hope it helps!

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To pull values from another worksheet, we need to follow these steps:

Select cell C3 and click on it.

Insert the formula: =VLOOKUP(B3,'Sheet 2'!$ B$3:$C$7,2,0)

Press enter.

Drag the formula down to the other cells in the column by clicking and dragging the little “+” icon at the bottom-right of the cell.

How do I add a LOOKUP field in Excel?

Open Design View on the table. Click a cell in the Field Name column in the first available empty row, and then type a field name for the lookup field. Select Lookup Wizard from the drop-down list by clicking the arrow after clicking in the Data Type column for that row.

To compute values in several columns, the VLOOKUP function may be used in conjunction with other functions like the Sum, Max, or Average. Since this is an array formula, all we need to do to make it function is hit CTRL+SHIFT+ENTER at the conclusion of the formula.

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Answer:A

Step-by-step explanation: 5 to the power of 3 is 5x5x5 which is 25x5 which then equals 125

Where the voice rises and falls. But inflection also describes a departure from a normal or straight course.

Inflection points for the given equation x^2e^{-2x} are

f'(x) =[tex]2x2xe^{(-2x)}-2{(x2)} e^{(-2x)}[/tex]

f'(x) =[tex]-2(x-1)xe {(^-2x)}[/tex]

x= -b±√(b^2 - 4ac)/2a

x=4±√(16+16)4

x=4±4√2/4

x=[tex]\sqrt{2+2/2}[/tex]

x=[tex]\sqrt{2-2/2}[/tex]

We get,

x=[tex]\sqrt{(2+2)/2^{2}*\sqrt{2+2}[/tex]

so, inflection points are,

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The equation that relates F and s for the spring on the jumper will be F=4x.

An equation is a statement that two expressions, which include variables and/or numbers, are equal. In essence, equations are questions, and efforts to systematically find solutions to these questions have been the driving forces behind the creation of mathematics.

It is given that, Todd increases the weights by 8 and observes a 2 cm spring extension. According to Hook's Law, the force exerted on a spring by the weights directly affects how much it is stretched, or s.

The equation that relates F and s for the spring on the jumper is obtained as,

F=ks

8=k×2

k=8/2

F=4 x

Thus, the equation that relates F and s for the spring on the jumper will be F=4x.

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1 hot dog cost is $1.20 .

What is costs?

A cost is the value of money that has been expended to produce something or provide a service and is therefore no longer available for use in production, research, retail, and accounting. In the case of an acquisition cost, the money spent on the acquisition is considered the cost.

Let's say that each drink costs $x and each hot dog costs $y.

Using the provided information, 3 drinks and 2 hot dogs cost $4.80. In equation form, it reads as follows:

3 x+2 y=4.80

1 drink and 1 hot dog costs $2.00. In equation form, we can write it as:

x+y=2

x=2-y

Using this value of x in first equation, we get:

3(2-y)+2 y=4.80

6-3 y+2 y=4.80

6-y=4.80

y=6-4.80

y=1.20

Thus the cost of one hot dog is  1.20$

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The system of inequalities shown by the graph are

There are some points that help in interpreting inequality graphs.

The first part is to arrange the equation in the form so that y is the subject of the formula and to the left

Then watch out for dashed lines or solid lines

Another part is the shaded portion

Equipped with tis information, it is clear that the two lines of the graph are both dashed and shaded above the line,

Hence we look out for equations having no equality sign in the inequality and due to the shading must be greater than.

This makes the first option the best choice

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If you bought 90 packs of trading cards then Rare trading cards are 6

The number of favorable events to all the events in an experiment is the ratio that makes up the probability formula. Theoretical probability, Experimental probability, and Axiomatic probability are the three categories into which probability can be divided.

If the conditions are met, Y = 1/15 * X = 90 , then Y = 1/15 x 90 Y = 6.

A deck of cards has 52 cards. Therefore, 52 outcomes overall.

The number of positive results is 4 (as there are 4 kings in a deck)

Hence, there is a chance that this will happen.

P(E) = 4/52 = 1/13.

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Answer:

182 feet

Step-by-step explanation:

Taking the fact that 112/40 = 2.8, you would need to multiply the miles per hour by 2.8 to get the feet needed.

Why is that, well I cant really explain...its just math and it works out /:

Answer:

f(x) = -2x +7

Step-by-step explanation:

The 2-point form of the equation for a line is suitable for this. For points (x1, y1) and (x2, y2), the equation is ...

y = (y2 -y1)/(x2 -x1)(x -x1) +y1

For the given points (0, 7) and (3, 1), the equation is ...

y = (1 -7)/(3 -0)(x -0) +7

y = -6/3x +7 . . . . . . . . simplify.

We can use f(x) for y to get ...

f(x) = -2x +7

Answer:

Below

Step-by-step explanation:

In three years the interest will be

50 000 *  .1  * 3  = 15 000

He pays this and 25 000   so his remaining loan is 25 000

  we want to know how long will it be before this remaining loan

      incurs 5 000 interest ( for a total of 20 000)

25000 * . 1 * n = 5000     shows n = 2 years   more

              ( 5 years from original loan date)

Thank you so much, I have a test tomorrow so I really appreciate it. Answering again so I can give you brainliest.

Answer: 6000

Step-by-step explanation:

The formula for the first [tex]n[/tex] terms of an arithmetic sequence with first term [tex]a[/tex] and common difference [tex]d[/tex] is [tex]S_n=\frac{n}{2}[2a+(n-1)d][/tex].

In this question, [tex]a=-27, d=6, n=50[/tex].

So, [tex]S_{50}=\frac{50}{2}[2(-27)+(50-1)(6)]=6000[/tex].

Answer:

Below

Step-by-step explanation:

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