In the following function defined by an equation in the form y=ax^2+bx+c, identify the values of a, b, and c. y=-2x^2

a) A=-2, b=0, c=0
b) a=-2, b=-2, c=-2
c) a=0, b=-2, c=0
d) a=0,b=0, c=-2

Answers

Answer 1
[tex]\sf y=ax^2+bx+c[/tex]

[tex]\sf y=-2x^2[/tex]

'a' here is -2, 'b' is 0, and 'c' is also 0, anything multiplied by 0 is 0, adding 0 to anything keeps it the same. So the answer is A.
Answer 2
Final answer:

In the quadratic function y = -2x^2, the values of the coefficients a, b, and c are -2, 0, and 0, respectively.

Explanation:

In the quadratic equation y = ax^2 + bx + c, the coefficients a, b, and c represent specific values that dictate the curve's shape and position. Given the equation y = -2x^2, we can compare it to the standard form to determine its coefficients. It is evident that a is -2, b is 0 since there is no x-term, and c is also 0 because there is no constant term. Therefore, the correct answer is a=-2, b=0, c=0, which corresponds to option a.


Related Questions

Express in exponential form. log100.001 = -3

Answers

Answer:

I believe you meant to put " log10 (0.001)= -3

10^-3=0.001

The expression log100.001 = -3 in exponential form is 10^-3 = 0.001. This demonstrates that 10 raised to the power of -3 equals 0.001, showing the inverse relationship between logarithms and exponents.

To express log100.001 = -3 in exponential form, recall that the logarithm is the exponent to which the base, in this case, 10, must be raised to produce the given number. The equation log10(0.001) = -3 tells us that the base 10 raised to the power of -3 equals 0.001.

In exponential form, this can be written as 10-3 = 0.001.The concept of converting a decimal to a negative power of 10 involves moving the decimal point to make the number into a whole number, and the negative exponent indicates how many places the decimal point needs to move to the left. In our case, 10-3 means we move the decimal three places to the left: 1 becomes 0.001.

HELP 50 POINTS! What are the key features needed to graph a polynomial function? Explain how to find these key features to sketch a rough graph of a polynomial function.

Answers

Lines and plots because you need to form a shape

The explanation can be given down in details . Using this information

are the key features needed to graph a polynomial function and to find these key features to sketch a rough graph of a polynomial function.

To graph a polynomial function, you need to identify and understand its key features, which include:

Degree: The highest power of the variable in the polynomial determines its degree. For example, a polynomial of degree 3 would have terms like [tex]ax^{3} +bx^{2} +cx+d.[/tex] The degree influences the behavior of the polynomial, such as whether its ends point up or down.

Leading Coefficient: The coefficient of the term with the highest power of the variable. It influences the end behavior of the polynomial, determining whether the graph rises to the left and rises to the right or falls to the left and falls to the right.

Roots (Zeros): These are the values of [tex]x[/tex] for which the polynomial evaluates to zero. They are the points where the graph crosses the [tex]x[/tex]-axis.

Turning Points: Points where the graph changes direction. These occur at local maxima or minima and can be found by setting the derivative of the polynomial equal to zero and solving for [tex]x[/tex].

To sketch a rough graph of a polynomial function, follow these steps:

Determine the Degree and Leading Coefficient: Identify the highest power of the variable and the coefficient of that term.

Find the Roots (Zeros): Set the polynomial equal to zero and solve for

[tex]x[/tex]. These are the points where the graph intersects the x-axis.

Identify Turning Points: Find the critical points by taking the derivative of the polynomial, setting it equal to zero, and solving for

[tex]x[/tex]. Then, use the second derivative test or analyze the behavior of the function around these points to determine whether they are local maxima or minima.

Plot Key Points: Use the roots and turning points to plot key points on the graph.

Consider End Behavior: Determine whether the leading coefficient is positive or negative. If it's positive, the ends of the graph will point upwards; if it's negative, they will point downwards.

Sketch the Curve: Connect the plotted points smoothly, taking into account the behavior of the polynomial between the key points. Make sure to show any symmetry if present and adjust the curvature based on the behavior around turning points.

Optional: Use a Graphing Tool: If available, utilize graphing software or calculators to verify your sketch and refine it if necessary.

By following these steps, you can sketch a rough graph of a polynomial function and visualize its key features effectively.

COMPLETE QUESTION:

What are the key features needed to graph a polynomial function? Explain how to find these key features to sketch a rough graph of a polynomial function.

The contour plot of is shown below. determine if the given quantity in each part is positive, negative, or zero.

Answers

There is no contour plot shown below.

Helps with this math problem please

Answers

First we are going to express both equation in terms of  [tex]y[/tex] to compare their slopes:
For our first equation:
[tex]-x=1-y[/tex]
[tex]-x-1=-y[/tex]
[tex]y=x+1[/tex]
For our second equation:
[tex]-1+y=x+2[/tex]
[tex]y=x+3[/tex]
So now we have our system of equations in terms of y:
[tex] \left \{ {{y=x+1} \atop {y=x+3}} \right. [/tex]
Notice that the slope, the coefficient of [tex]x[/tex], in both equations is the same: 1, and if tow linear equations have the same slope, they are parallel.

We can conclude that we can classify the system of equations as parallel.

what is the value of x? |x|=16

Answers

the straight lines mean absolute value
 so x = -16 and x = 16
I think your answer is x=16 so, 16 has to = x

Tom was saving $3000 for a trip. He initially deposited $200 in a savings account and then deposited a fixed amount every month in the account for the next 5 months. Then he received a check in the mail. The check was three times as much as the total amount he had saved so far. When he deposited the check in his savings account, he had $200 more than he needed. What was the fixed amount he deposited in the savings account during the 5 months?

Answers

The answer is $120. To determine this, you will represent the situation as an equation:

4(200 + 5x) = 3200. I came up with this because it says he started with 200 and added a fixed amount every month for 5 months (5x). If the check was 3 times the amount he already had saved, then he has 4 times what he started with.

His goal was $3000, but he has $200 more than that, so $3200 would be the amount he has.

I have attached the work showing how to solve for x, the amount he depositors each month.

what is -10-6=?. Please I need an answer and it's my grade

Answers

-10 -6= -16
Because it’s like an opposite. 10+6=16 just add the - sign.
r=-4. -10-6 is -16.:)

51 divided by 3 is k

Answers

51 ÷ 3 = 17
K is 17

Have a nice day!

51 divided by 3 is k, the value of k is 17.

What is Algebra?

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.

Given;

51 divided by 3 is k

51/3=k

17=k

Therefore, by algebra the answer will be 17

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When filled, a particular round balloon has a diameter of 14 inches. What is the approximate volume of air needed to fill this balloon?

Answers

Hi the answer you are looking for is 1436.76.

Hope this helps! Study on!

Answer:

the answer is  1,437

Step-by-step explanation:

Choose the two equations you would use to solve the absolute value equation below. Then solve the two equations. |2x + 5| = 3 A. 2x + 5 = 3 and 2x + 5 = –3; {–1, –4} B. 2x + 5 = 3 and 2x + 5 = –3; {1, –4} C. 2x – 5 = 3 and 2x + 5 = –3; {–1, 4} D. 2x – 5 = 3 and 2x + 5 = –3; {–1, –4}

Answers

To solve

|2x + 5| = 3

solve these 2 equations

2x + 5 = 3 and 2x + 5 = -3

Solution:

2x + 5 = 3 or 2x + 5 = -3

2x = -2   or   2x = -8

x = -1   or x = -4

The correct answer is choice A.

Vicki started jogging. The first time she ran she ran 3/16 mile. The second time, she ran 3/8 Mile, and the third time, she ran 9/16 mile. If she continue this pattern, when was the first time she ran more than one mile explain

Answers

Answer:

In seventh time she ran more than one mile from first time she ran.

Step-by-step explanation:

Given Vicki started jogging. The first time she ran she ran 3/16 mile. The second time, she ran 3/8 Mile, and the third time, she ran 9/16 mile.

We have to find when was the first time she ran more than one mile.

The sequence followed is

[tex]\frac{3}{16}, \frac{6}{16}, \frac{9}{16}, \frac{12}{16}, \frac{15}{16}, \frac{18}{16}, \frac{21}{16}....[/tex]

First time she ran more than 1 mile is [tex]\frac{3}{16}+1=\frac{19}{16}[/tex]

In the seventh time she ran [tex]\frac{21}{16}[/tex] miles which is more than one mile from the first time.

Hence, in seventh time she ran more than one mile from first time she ran.


2.4.5 journal: graphs of exponential functions

Answers

This is a net diagram of a room showing the floor and 4 walls (ceiling not included).
What is the measurement at x? m

Ron is taking an inventory at his store. Based on previous sales, he predicted sales of 25 folders and 230 erasers. He actually sold 30 folders and 200 erasers. What is the percent error for the erasers?

Answers

Answer: There is 15% error for the erasers

Step-by-step explanation:

Since we have given that

Number of folders he predicted = 25

Number of erasers he predicted = 230

Total number of inventories he predicted is given by

[tex]230+25=255[/tex]

Number of erasers he actually sold = 200

Number of folders he actually sold = 30

Total number of inventories he actually sold is given by

[tex]200+30=230[/tex]

Error in estimation is given by

[tex]230-200=30[/tex]

Percentage of error for the erasers only  

[tex]\frac{30}{200}\times 100\\\\=\frac{30}{2}\\\\=15\%[/tex]

Hence, there is 15% error for the erasers.

Answer:

15 %

Step-by-step explanation:

Jill sold half of her comic books and then bought sixteen more. she now has 43. how many comic books did she begin with?

Answers

43-16 = 27

27 x 2 = 54

 she had 54

Answer: 54

Step-by-step explanation: 43-16=27 times 2 =54

Huey works 175 hours each month and earns $14.25 per hour after taxes. His monthly budget is shown. How much money is left over in his budget for unplanned expenses?

Answers

For this case we have the following equation:
 y = 14.25x
 Where,
 x: number of hours
 y: total salary
 For x = 175 we have:
 y = 14.25 * (175)
 y = 2493.75
 The amount of money for unexpected expenses is:
 unplanned expenses = 2493.75 - 1250 - 200 - 350 - 400 - 225 - 300
 unplanned expenses = -231.25 <0
 We note that there is no money left for unexpected expenses
 Answer:
 
there is nothing left over

Answer:

Nothing will be left over.

Step-by-step explanation:

You need to multiply the 175 by 14.25 to get his total income each month.

Then you add all of the expenses of 1250, 200, 350, 400, 225, 300.

Huey earns 2,493.75 every month, and his expenses are 2,725.

2,493.75 - 2725 = a negative rational number

I ain't gonna do it, because he ain't got no money in his wallet.

(I don't talk like that above, I'm just pretending to be an official Texan.)

If he has negative money left over, I don't think he would spend some more tbh, so the answer would be nothing would be left over.

Hope this helps someone in the future!

The level of nitrogen oxides (nox) in the exhaust after 50,000 miles or fewer of driving of cars of a particular model varies normally with mean 0.03 g/mi and standard deviation 0.01 g/mi. a company has 64 cars of this model in its fleet. what is the level l such that the probability that the average nox level x for the fleet is greater than l is only 0.01? (hint: this requires a backward normal calculation. round your answer to three decimal places.)

Answers

Final answer:

We can use the z-score formula with the known z-score corresponding to a probability of 0.01 to calculate the exhaust NOx emission level. This gives us approximately 0.001 g/mi.

Explanation:

In this scenario, we're dealing with a normal distribution problem wherein we use the formula for z-score to answer it. The z-score formula is =(−)/(/√), where x is the data point, μ is the population mean, n is the size of the data set, and σ is the standard deviation.

In this case, we want to find x, or the NOx emission level, such that the probability of finding an automobile with a level greater than x is 0.01. So, we need to find the z-score that corresponds to a probability of 0.01 and then use it in our formula to solve for x.

Using standard z-score tables or an online z-score calculator, we find that a probability of 0.01 corresponds to a z-score of approximately -2.33 (p and z have opposite signs). We then substitute this z-score, along with the given mean μ=0.03 and standard deviation σ=0.01 into the z-score formula, solving for x. The value of n is 64 (number of vehicles in the fleet).

Inserting these values into the formula gives us = + z/√ =0.03 + (-2.33)*(0.01/√64), which simplifies to =0.03 - (2.33/80) = 0.03 - 0.029125= 0.000875 g/mi. Therefore, the NOx emission level, such that the probability of finding an automobile with a level greater than it, is 0.01 for this fleet is approximately 0.001 g/mi when rounded to three decimal places.

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Final answer:

To find the level l such that the probability that the average NOx level x for the fleet is greater than l is only 0.01, we can use the z-score formula and the properties of the normal distribution. The z-score formula allows us to convert a probability into a corresponding value on the distribution. Rearranging the z-score formula, we can find the value of l.

Explanation:

To find the level l such that the probability that the average NOx level x for the fleet is greater than l is only 0.01, we can use the z-score formula and the properties of the normal distribution. The z-score formula is z = (x - µ) / (σ / √n), where x is the average NOx level, µ is the mean, σ is the standard deviation, and n is the sample size. We want to find the value of l such that the area to the right of l under the normal curve is 0.01.

First, we need to find the z-score corresponding to a right-tail probability of 0.01. This can be done using a z-table or a calculator. In this case, the z-score is approximately 2.326. Now we can use the z-score formula to find the value of l. Rearranging the formula, we have l = µ + (z * σ / √n). Substituting the given values, l = 0.03 + (2.326 * 0.01 / √64). Calculating this, we get l ≈ 0.031.

Therefore, the level l such that the probability that the average NOx level x for the fleet is greater than l is only 0.01 is approximately 0.031 g/mi.

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p(3,5) and q(7,-1) are the end points of a diameter of a circle. what is the length of a radius of the circle

Answers

[tex]d= \sqrt{(7-3)^2+(-1-5)^2} = \sqrt{16+36} = \sqrt{52} =2 \sqrt{13} \\ \\ r= \frac{d}{2}= \frac{2 \sqrt{13} }{2} = \sqrt{13} [/tex]

the length of a radius of the circle is √13

What is the cube root of 27a^12

Answers

Find the cube root of the numbers and then of the letters. square root of 27 is three and of a^12 is a^4. The cube root is 3a^$

Answer:

[tex]3a^{4}[/tex] .

Step-by-step explanation:

Given : [tex]27a^{12}[/tex]

To Find:The cube root of [tex]27a^{12}[/tex]

Solution:

We are supposed to solve [tex]\sqrt[3]{27a^{12}}[/tex]

So, [tex]\sqrt[3]{27a^{12}}[/tex]

[tex]\Rightarrow (27)^{\frac{1}{3}}(a^{12})^\frac{1}{3}[/tex]

[tex]\Rightarrow (3^3)^{\frac{1}{3}}(a^{4})[/tex]

[tex]\Rightarrow 3a^{4}[/tex]

Hence The cube root of [tex]27a^{12}[/tex] is [tex]3a^{4}[/tex] .

<5 and <6 are complementary angles m<5=13 what is the measure of <6

Answers

The measure of angle 6 can be found by subtracting the measure of angle 13 from 90.

90-13 = 77

factor 64a^2b^36-1
1. (8ab6 + 1)(8ab6 – 1)
2. (8ab18 – 1)
3. (8ab18 + 1)(8ab18 – 1)
4. (8ab6 – 1)

Answers

[tex] 64a^2b^{36} -1 [/tex]

[tex]= (8ab^{18})^{2} - (1)^2 [/tex]

[tex]=(8ab^{18} - 1)(8ab^{18} + 1)[/tex]

----------------------------------------------------------
Answer: (8ab¹⁸ - 1)(8ab¹⁸ + 1) (Answer 3)
----------------------------------------------------------

Please help me with the question 15 POINTS

Answers

Each of these questions is substantially the same as the others. The answer is, "it depends" on what you want a random sample of. If you want random people in the country, you will not get that from these protocols.

If you want random people that meet certain criteria (have phones, shop in eyeglasses stores, use specific venues), then these protocols will deliver.

67 ,73 ,77,82,86,,86,91,98 find the median

Answers

Hard to tell if a number is missing or not. We'll assume this is the entire data set.

The median of a set that has an even number of numbers is the average of the middle two after they are sorted into order.
.. (82 +86)/2 = 84

Your median is 84.

Two people taking the test are chosen at random. what is the probability that at least one of them scores more than 500 points?

Answers

It depends what their IQ level is.

Given two vectors a⃗ = 4.60 i^+ 7.20 j^ and b⃗ = 5.10 i^− 2.70 j^ , find the scalar product of the two vectors a⃗ and b⃗ .

Answers

a=<4.60,7.20>
b=<5.10,2.70>
The scalar product, or the inner product, or the dot-product, is by summing the products of the respective directions, 
a.b=4.6*5.1+7.2*2.7
=23.46+19.44
=42.9

In this exercise we have to use the knowledge of vectors to find the dot product between them, in this way we can say that:

[tex]|a|*|b|=42.9[/tex]

Knowing that it was stated by the text that the vectors have the value of :

[tex]a=<4.60,7.20>\\ b=<5.10,2.70> [/tex]

The scalar product, or the inner product, or the dot-product, is by summing the products of the respective directions, will be:

[tex]|a|*|b|=4.6*5.1+7.2*2.7\\ =23.46+19.44\\ =42.9 [/tex]

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solve the system x+3y=2 x+y=2

Answers

x +3y = 2

x+y = 2  (rewrite as x=2-y)

2-y +3y = 2
2 +2y = 2
2y = 0

y = 0

x +0 = 2
x = 2

x = 2, y=0


a skateboard that cost $53 was put on sale for 25% discount. What was the sale price of the skateboard?

Answers

53(.25)=13.25
53-13.25=39.75
The sale price was $39.75
53 is 100% of the price. If you remove 25% of the price you have 100%-25%=75%. so you multiply 53 by 75% or .75 therefore: 53*.75=$39.75

Let be the linear transformation that first reflects points through the -axis and then then reflects points through the line . find the standard matrix for

Answers

In the case above, the standard matrix A for T:

T= [0 1]

    [-1 0]

What is  linear transformation  about?

A linear transformation is known to be a kind of a function that exist from one vector point to another and it is one that often respects the linear) structure of all of vector space.

Note that in the linear transformation;

T: R² R²

T=  (x, y), (-x, y)

Since:

(x,y) - (x,-y) - (y,-x)

A= [-1 0]

   [0 1]

A= [-1 0]    =       A= [-x]

   [0 1]                    [y]

Then [tex]T_{b}[/tex] is the reflection of (x- y); Since;

B = [0 1]

    [1 0]

Then [tex]T_{B} (T_{a}(x) )[/tex]  =  [0 1]        =      A= [-x]

                              [0 1]                     [y]

  = [-x]

    [y]

Then: T: = [0 1]                  [x]

                [0 1]                   [y]

           

   

Therefore, In the case above, the standard matrix A for T:

T= [0 1]

    [-1 0]

           

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The distance between major cracks in a highway follows an exponential distribution with a mean of four miles. (a) what is the standard deviation of the distance between two major cracks

Answers

For an exponential distribution, the standard deviation is equal to the mean.

(a) the standard deviation is 4 miles.

The amount of a chemical solution is measured to be 2 liters. What is the percent error of the measurement?

Answers

The amount of a chemical solution is measured to be 2 liters. What is the percent error of the measurement?

25%


List 3 values that would make this inequality true 43 < y -30

Answers

43 < y - 30
add 30 to both sides
73 < y

y can be anything that is greater than 73
so it could be...
101, 74, 90, 75, 980767, 5674, etc.

Hope this helps!

Final answer:

To make the inequality 43 < y - 30 true, add 30 to both sides to get 73 < y. Any number greater than 73, such as 74, 80, or 90, will satisfy the inequality.

Explanation:

To find values that make the inequality 43 < y - 30 true, you simply need to add 30 to both sides of the inequality. This gives you:

73 < y

This means that any value greater than 73 will make the inequality true. Here are three examples:

y = 74 (since 74 is greater than 73)y = 80 (since 80 is greater than 73)y = 90 (since 90 is greater than 73)

You can choose any three numbers greater than 73, and they will satisfy the inequality 43 < y - 30.

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