f(x)=−x 2 −4x−19 find f(-9)

Answers

Answer 1

Answer= Let f" role="presentation" style="box-sizing: inherit; margin: 0px; padding: 0px; border: 0px; font-style: normal; font-variant: inherit; font-weight: normal; font-stretch: inherit; line-height: normal; font-family: inherit; font-size: 15px; vertical-align: baseline; display: inline; text-indent: 0px; text-align: left; text-transform: none; letter-spacing: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">ff be the function defined by

f(x)=x2−4x" role="presentation" style="box-sizing: inherit; margin: 0px; padding: 0px; border: 0px; font-style: normal; font-variant: inherit; font-weight: normal; font-stretch: inherit; line-height: normal; font-family: inherit; font-size: 15px; vertical-align: baseline; display: inline; text-indent: 0px; text-align: center; text-transform: none; letter-spacing: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">f(x)=x2−4xf(x)=x2−4x

for x≥2" role="presentation" style="box-sizing: inherit; margin: 0px; padding: 0px; border: 0px; font-style: normal; font-variant: inherit; font-weight: normal; font-stretch: inherit; line-height: normal; font-family: inherit; font-size: 15px; vertical-align: baseline; display: inline; text-indent: 0px; text-align: left; text-transform: none; letter-spacing: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">x≥2x≥2. Find the inverse function indicating its domain and the range.

When I try to make x" role="presentation" style="box-sizing: inherit; margin: 0px; padding: 0px; border: 0px; font-style: normal; font-variant: inherit; font-weight: normal; font-stretch: inherit; line-height: normal; font-family: inherit; font-size: 15px; vertical-align: baseline; display: inline; text-indent: 0px; text-align: left; text-transform: none; letter-spacing: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">xx the subject I get +" role="presentation" style="box-sizing: inherit; margin: 0px; padding: 0px; border: 0px; font-style: normal; font-variant: inherit; font-weight: normal; font-stretch: inherit; line-height: normal; font-family: inherit; font-size: 15px; vertical-align: baseline; display: inline; text-indent: 0px; text-align: left; text-transform: none; letter-spacing: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">++and −" role="presentation" style="box-sizing: inherit; margin: 0px; padding: 0px; border: 0px; font-style: normal; font-variant: inherit; font-weight: normal; font-stretch: inherit; line-height: normal; font-family: inherit; font-size: 15px; vertical-align: baseline; display: inline; text-indent: 0px; text-align: left; text-transform: none; letter-spacing: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">−− two answers for the inverse function. Is it the proper answer? The answer I got is

x=2±y+4." role="presentation" style="box-sizing: inherit; margin: 0px; padding: 0px; border: 0px; font-style: normal; font-variant: inherit; font-weight: normal; font-stretch: inherit; line-height: normal; font-family: inherit; font-size: 15px; vertical-align: baseline; display: inline; text-indent: 0px; text-align: center; text-transform: none; letter-spacing: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">x=2±y+4−−−−√.x=2±y+4.

Is it correct and how do I determine the domain and range of the function? Thanks


Related Questions

This is mathemiatci can you hep

Answers

Answer:

81-x=96-2x

x=15

m <1 = 66

m <2 = 66

Step-by-step explanation:

X=15
Because
Make it like this
(81-x)=(96-2x)
And solve for(x)
And x=15
The add 15 to (81-x) =(81-15)=66
And (96-2x) =(96-2(15)=66

the relationship between two variables a and b is proportional. when a is 3 b is 25.5. write an equation to represent this relation​

Answers

The answer is y = 8.5x

explanation is in the picture.

hope it helps.

Answer:

y= 8.5x

Step-by-step explanation:


25 + 62 x 0.25
Evaluate the expression

Answers

Answer:

40.5

Step-by-step explanation:

25 + 62 x 0.25 =

25 + 15.5 =

40.5

25+62 × 0.25 = 40.5

62 × 0.25= 15.5

25 + 15.5 = 40.5

Complete the missing parts of the table for the following function. y = 6 x -2 -1 0 1 0 1 2 3 1 y [ ] 6 36 36 1?​

Answers

Answer:

Under -1 it will be 1/6

Under zero it would be 1

under 3 it would be 216

Explanation:

y = 6 to the power of x


1. Each letter in VALENTINE is written on a separate piece of paper and put into a bag.
You randomly choose a piece of paper from the bag. Find the probability of choosing an
E

Answers

Answer:

2/9

Step-by-step explanation:

two e with a total of 9 letters

The ratio of boys to girls In student council is 4 to 5. Students council has 18 members. How many are boys?

Answers

Answer:

Step-by-step explanation:

boy count is 1476

Explanation:

There is an important difference between the way counts are viewed in ratio to that in fractions.

The ratio of boys : girls

4

:

5

so you have 4 boys and 5 girls making the whole count

4

+

5

=

9

in its simplest form.

So to change the ratio proportion into fraction proportion we have:

boys

4

9

of the whole.

girls

5

9

of the whole.

It is given that the whole is 3321 therefore the count of boys is:

4

9

×

3321

=

1476

express 729 as a power of 27

Answers

27 to the 2nd power
so uh
27^2

In tug of war, when one team moves toward the other, what can be said about the forces?

Answers

Answer:

When the force exerted by one team slackens, the force exerted by their third law, each team pulls the opposite team with equal force in a tug of war.  So the two forces don't balance each other and the rope accelerates towards the stronger team.

Step-by-step explanation:

State weather ABC and AED are congruent. Justify your answer

Answers

I had to do this as well, tbh I wasn’t that good though..
I think the answer is c. I hope this helps. Be safe out there!

Solve the given differential equation by using an appropriate substitution. The DE is a Bernoulli equation. t2 (dy/dt) + y2 = ty

Answers

Answer:

Step-by-step explanation:

[tex]t^2 \dfrac{dy}{dt}+ y^2 = ty \\ \\ t^2 \dfrac{dy}{dt}-ty = -y^2[/tex]

[tex]\text{by dividing both sides by }{y^2},\text{ we have:}[/tex]

[tex]\dfrac{t^2}{y^2}\dfrac{dy}{dt}- \dfrac{ty}{y^2}= -1[/tex]

[tex]\dfrac{t^2}{y^2}\dfrac{dy}{dt}- t\dfrac{1}{y}= -1[/tex]

[tex]\text{by dividing both sides by }t^2; \text{we have;}[/tex]

[tex]\dfrac{1}{y^2}\dfrac{dy}{dt}- \dfrac{1}{t}\dfrac{1}{y}= -\dfrac{1}{t^2}--- (i)[/tex]

[tex]Let \ v = \dfrac{1}{y}[/tex]

[tex]\dfrac{dv}{dt}= -\dfrac{1}{y^2}\dfrac{dy}{dt}[/tex]

[tex]-\dfrac{dv}{dt}= \dfrac{1}{y^2}\dfrac{dy}{dt}[/tex]

[tex]\text{replace in equation (1); we have}[/tex]

[tex]- \dfrac{dv}{dt}-\dfrac{1}{t}v = -\dfrac{1}{t^2}[/tex]

[tex]- \Big ( \dfrac{dv}{dt}+ \dfrac{1}{t}v \Big) = -\dfrac{1}{t^2}[/tex]

[tex]\dfrac{dv}{dt}+\dfrac{1}{t}v = \dfrac{1}{t^2}[/tex]

[tex]\text{relating above with} \dfrac{dv}{dt}+ P(t) v = Q(t) \text{, we have:}[/tex]

[tex]P(t) = \dfrac{1}{t} \ \ \ , \ \ \ \ Q(t) = \dfrac{1}{t^2}[/tex]

[tex]\mu (t) = e^{\int P(t) \ dt }= e ^{\int \dfrac{1}{t} \ dt}= e^{In|t|}= t[/tex]

[tex]v\mu(t) = \int \mu(t) Q(t) dt + C[/tex]

[tex]vt = \int (t) (\dfrac{1}{t^2})dt + C[/tex]

[tex]vt = \int \dfrac{1}{t}dt + C[/tex]

[tex]vt = Int+C[/tex]

[tex]v = \dfrac{In \ t + C}{t}[/tex]

[tex]\text{substitute } v = \dfrac{1}{y}}, we \ get}[/tex]

[tex]\dfrac{1}{y}=\dfrac{In \ t +C}{t}[/tex]

[tex]\mathbf{y = \dfrac{t}{In \ t + C}}[/tex]

Hurry I need it done quickly and correctly don't comment if you don't know it
1. Consider two forests that are proportional with respect to the number of trees per square mile. If one forest has 1,446 trees per 0.7 square miles, how many trees should we expect in a forest that is 4 square miles? Round to a whole number, if needed.

2.Washington State University graduated a total of 16,856 students. Of all the students, only 7.0% were majors in chemistry. How many students majored in chemistry? Round to a whole number, if needed.

3.The number of early voters for the 2020 election was 132.5% of what it was in 2016. How many early voters were there in 2020 if there were 58,300,000 early voters in 2016? Round to a whole number of voters.


4.At a conference, there is a food table setup with 459 sandwiches. Of all the sandwiches, only 76 are turkey. What percent of sandwiches are turkey? Round to a tenth of a percent.

5. Which of the following is equivalent to the ratio 5?
0.2

5 to 1

1:5

1/5

Answers

Answer:

1. 1,446 trees 16,856 square miles

2. 99.99% 16,856 students were passed

3. 58,300,000 early voters in 2016 202.5% to 2020

4. 459 sandwiches swith to 500 sandwishes 76 turkeys to 80 turkeys is 580.80% turkeys

5. 1/5 to 5 to 1 to 1:5 right? please dont report me

Find the area of the composite figure below.
2 ft
2 ft
6 ft
4 ft
8 ft
22 ft2
30 st²
36 ft²
38 ft

Answers

Answer:

A  =  139.25

Step-by-step explanation:

Please help, this is due soon

Answers

Answer:

4

Step-by-step explanation:

If I remember correctly you can not have the arrows on the same y axis

Which of the following equals sin A?

Ignore my answer.

Answers

Answer:

You are correct it is A. cos B

Step-by-step explanation:

MATH HELP ME NOWWWWWWWWWWWWWWWW

Answers

Answer:

part A maybe

Step-by-step explanation:

3/4+1/8 =7/8

part B

5/8 cups

write these ratio in its simplest form 200:180​

Answers

Answer:

10:9

Step-by-step explanation:

(05.07 MC)
The net of a square pyramid is shown below
3 inches
2 inches
3 inches
2 inches
What is the surface area of the solid?
16 square inches
24 square inches
28 square inches
Previous Question
Question 1 (Answered)

Answers

Answer:

16 2x3 divided by 2 x4=12 + 2x2=16 I think hopefully this helps :)

10. Alice Nako's monthly credit card statement has a previous balance of
$307.85. It shows Alice's $40.00 payment. This month's new purchases
were $9.50 and $41.75. The account posted a $23.75 credit, and the
finance charge is $4.62.
what is the new balance ?!

Answers

307.85
-40
-9.50
-41.75
+23.75
-4.62
=235.73$

What is 730 divided by 30

Answers

Answer:

24 1/3

Step-by-step explanation:

long division

the coast of 16 pens is rupees 256. Find the cost of 13 pens.​

Answers

256 divided by 16=16 each pencil
So, 16x13=208
Answer: 208

48/96 in its simplest form

Answers

Answer:

1/2

Step-by-step explanation:

just divide it I guess

1/2

48/2

=24/2

=12/2

=6/2

=3

Hope this helps :D

The floor in the room is 4.5m long and 3.1m wide. Calculate the area of the floor​

Answers

Answer:

13.95 metre square

Step-by-step explanation:

The measurements you gave are different. Hence it concludes that the floor is rectangular in shape.

Sooo,

Area of rectangle = length x breadth

= 4.5×3.1 = 13.95 m^2

Hope it helped!!!

what is 2604 divided by 5

Answers

Answer:

150.80

Step-by-step explanation:

Answer:520.8

Step-by-step explanation:

the product of the present ages of Two Sisters is 150. 5 years ago, the elder sister was twice as old as her younger sister find their age​

Answers

The younger sister is 10 years old and the elder sister is 15 years old.

Let's represent the present ages of the two sisters as x and y, where x is the age of the elder sister and y is the age of the younger sister.

According to the given information, the product of their present ages is 150:

x * y = 150 ---(1)

It is also stated that 5 years ago, the elder sister was twice as old as her younger sister:

x - 5 = 2 * (y - 5) ---(2)

We can now solve these two equations simultaneously to find the ages of the two sisters.

From equation (2), we can simplify:

x - 5 = 2y - 10

x = 2y - 10 + 5

x = 2y - 5

Substituting this value of x into equation (1), we have:

(2y - 5) * y = 150

2y^2 - 5y = 150

2y^2 - 5y - 150 = 0

Now we can solve this quadratic equation either by factoring, completing the square, or using the quadratic formula. By factoring, we find:

(2y + 15)(y - 10) = 0

This gives us two possible solutions for y:

2y + 15 = 0 --> y = -7.5 (Discard this since age cannot be negative)

y - 10 = 0 --> y = 10

So, the younger sister is 10 years old.

To find the elder sister's age, we can substitute this value of y into equation (2):

x = 2y - 5

x = 2 * 10 - 5

x = 20 - 5

x = 15

Therefore, the elder sister is 15 years old.

for such more question on ages

https://brainly.com/question/9142477

#SPJ8

Find the Area: 13 in | 4 in 7 in 24 in​

Answers

Answer:

242 inches²

Step-by-step explanation:

area = (1/2) · (p + q) · h (trapezoid formula)

(1/2)(13+24)(4)= 74

area= bh (rectangle)

(24)(7)= 168

168+74= 242

Cranberry juice is made with a 16:3:1 ratio of water:sugar:cranberries. How much water,

in gallons, how much water is needed in order to make three gallons of cranberry juice? Express your answer as a

common fraction.

Answers

4 1/2 cups of water

Answer:

2 2/5

Step-by-step explanation:

We need to find out how many gallons of water so,

16/20 = water

3 gallons * 16/20 = 48/20 = 2 8/20 = 2 2/5

this works because then cranberries would be:

2 2/5/16 = 15/100

and for sugar that means

15/100 * 3 = 45/100

so in total

2 40/100 + 45/100 + 15/100 = 3 gallons

and if we simpilfy 2 40/200 we get 2 2/5

Ulani is constructing a triangle that has sides measuring 12 cm and 28 cm. Which measurements could be the length of the third side? Select two options.
15 cm
24 cm
38 cm
41 cm
53 cm

Answers

The answer is 24 cm and 38 cm

Answer:

B and C

Step-by-step explanation:

Tell whether the ordered pair is a solution to the system of linear equations. 1 point
(-4,-2);
y = 2.c + 6
y = -32 – 14
Yes
No
O Maybe

Answers

Answer:

Yes

(-4,-2) is a solution of a given system of equation

Step-by-step explanation:

Explanation:-

Given that the equation

                y = 2 x + 6 ..(i)

Given point (-4,-2)

substitute   x =-4 and y = -2 in equation (i)

             -2 =2(-4) +6

            -2  = -8+6

           -2 =-2

∴ The point satisfies the given equation

     

plzzz help will give brainiest
select the most precise name of quadrilateral MNOP given the coordinates of M N O P




Answers

Parallelogram

draw the coordinates on a graph

Answer:

Rhombus

Step-by-step explanation:

Sketching out the shape shows us that it is neither a square nor rectangle (alternatively, we could tell from the points since if it was a rectangle/square, there would be two sets of x co-ordinate values and y-co-ordinate values only).

Find the length of MN:

MN²=(Yn-Ym)²+(Xn=Xm)²

MN²=(4-1)²+(3-1)²

MN²=3²+2²

MN²=9+4

MN=√13

Find the length of MP:

MP²=(Yp-Ym)²+(Xp-Xm)²

MP²=(3-1)²+(4-1)²

MP²=2²+3²

MP²=4+9

MP=√13

Since the side lengths are equal, the shape must be a rhombus.

Nick, Sarah and Gavyn share some sweets in the ratio 2:3:3. Nick gets 28 sweets. How many did Gavyn get?

Answers

Answer:

42 sweets

Step-by-step explanation:

28 / 2 = 14 x 3 = 42

Hope that helps!

Other Questions
Hello again, I have another question! 8 1/12 + (-13 5/6) Thank you! Eating food is an example of which type of energy? a. Thermal energyb. Mechanical Energyc. Radiant Energyd. Chemical Energy Which convention is related just to written language Find the median of the data set represented in the following stem-and-leaf plot.62636467 Summarize: At the end of the story, where is each character going and why? from uprising or triangle shirtwaist factory fire Which economic system is based on an idea of equality of result; that regardless of how well off somebody starts, allshould be guaranteed an equal success?O A. TraditionalB. CommandOC. MixedD. Market please help me put these words in the correct blanks help me, pls pls,..... There is an unknown number of people at the table at thebeginning of lunch. Then...3 more people joined the group.Then the entire group divided into 2 groups, andone group left and went outside,of the total students were left in the lunchroom5 people joined the group in the lunchroom.The total number of people in the lunchroom at theend of lunch was 10a. Write the equation you can create to show this situation. b. How many people were at the table at the beginning of lunch? Explain how you know. Jill brought 2 1/3 boxes of carrot muffins for a bake sale. Mike brought 5 3/4. boxes of apple muffins. What is the total number of boxes of muffins Jill and Mike brought to the bake sale? Enter your answer as a fraction in simplest form. Luisa loved ridding horses, but she was afraid of the foxes that sometimes jumped out of the trees and scared her horse.Which sentence correctly revises the misspelled word?A. Luisa loved ridding horses, but she was afraid of the foxes thatsometimes jumpped out of the trees and scared her horse.B. Luisa loved ridding horses, but she was afraid of the foxes thatsometimes jumped out of the trees and scared her horse.C. Luisa loved riding horses, but she was afraid of the foxes thatsometimes jumped out of the trees and scared her horse.D. Luisa loved ridding horses, but she was afraid of the foxshatsometimes jumped out of the trees and scared her horse. 3. Subtract (7x + 10)-(-6x + 8). The points represented by the table lie on a line. Find the slope of the line. please tell fast plzzzzzz el abuso del alcohol y otras drogas que piensas Describe current government strategy of poverty alleviationclass 9theconomic poverty as a challengeplease answer in short Stys Company's payroll for the year is $1,210,930. Of this amount, $510,710 is for wages paid in excess of $7,000 to each individual employee. The SUTA tax rate for the company is 3.2% on the first $7,000 of each employee's earnings. The standard form of y = 5(x + 4)(x + 5) is Kim got 82%, 75%, and 74% on the first 3 tests.What grade does she need on the 4th test to have an average of 80% on all 4 tests?A. 77%B. 80%O c. 85%D. 89%E. 100% Neil has 2 pounds of grapes. He uses some to make a fruit salad. Now Neil has 8 ounces of grapes. How many ounces of grapes does Neil use for the fruit salad?