Mathematics High School

Which of the following are solutions to the equation below?
Check all that apply.
x2 + 6x + 9 = 20
A. x= 13 + 20
B. X = -2.75 +3
C. X = 2.5+ 3
D. X = -1/5 + 20
E. X = 2.5 - 3
F. x = -24/5-3

Answers

Answer 1
A D and b.............................................

Related Questions

Please solve this problem
I really want the answer
please give the correct answer​

Answers

Answer:

Step-by-step explanation:

Use PEDMAS

125 ÷ (-5) * (-4) - 100 =  (-25) * (-4) - 100

                                  = 100 - 100

                                  = 0

negative2 - 7 is equvilent to

Answers

Answer:-5

Step-by-step explanation:

Answer:

-9

Step-by-step explanation:

-2 - 7

Picture a number line in your head, you begin at negative 2, which is less than 0 and you further go left 7 points, so you will end at -9

Evaluate 1/4x+ 1/20 when x =1/5

Answers

Answer:

1/10

0.1

Step-by-step explanation:

Help please answer Will name Brainliest

Answers

Answer:

m2 will be 88

m3 will be 92

m1 will also be 92

Step-by-step explanation:

Opposite angles are equal and 3 and 4 are add upto 180

Two cyclists start from 98 miles apart and begin racing toward each
other. Three hours later, they have not yet met and the distance between
them is 2 miles. How fast is each of them biking if one bikes 3 mph
slower than the other?

Answers

The speed of one bicyclist was 14.5mph, speed of the other bicyclist was 17.5mph.

Let the speed of one bicyclist=x mph

Let the speed of the other bicyclist=(x+3) mph

Hence:

Speed of one bicyclist:

3x+3(x+3)+2=98

3x+3x+9+2=98

6x=87

Divide both side by 6x

x=87/6

x=14.5 mph

Speed of the other bicyclist:

x+3 mph

14.5 mph+3 mph

=17.5 mph

Inconclusion the speed of one bicyclist was 14.5mph, speed of the other bicyclist was 17.5mph.

Learn more here:

https://brainly.com/question/18839894

Mother arranged 5 rows with 3 cups and saucers in each row she then put on the table 2 more sets of cups and saucers how many cups and saucers were on the table

Answers

Answer:

I think it might be 30 if the each cup and saucer is counted as 1.

Step-by-step explanation:

5 x 3 = 15 x 2 = 30

If c-d=7 and c=3-8i what is d

Answers

Answer:

d=-4.......,...........

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

If,

c - d = 7

c = 3 - 8i

The value of  d is -4 - 8i

What is an equation?

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

Example:

2x + 3 = 4 is an equation.

2x + 6 is an equation.

We have,

Two equations:

c - d = 7 _______(1)

c = 3 - 8i _______(2)

We are using the substitution method to solve this problem.

We make the value of a variable from an equation and substitute the value of that variable in the other equation.

From (1) we get,

c - d = 7

Add d on both sides.

c - d + d = 7 + d

c = 7 + d ______(3)

Put (3) on (2) we get,

7 + d = 3 - 8i

Subtract 7 on both sides.

7 + d - 7 = 3 - 8i - 7

d = -4 - 8i

Thus,

If,

c - d = 7

c = 3 - 8i

The value of  d is -4 - 8i

Learn more about equations here:

https://brainly.com/question/17194269

#SPJ2

PLEASE PLEASE PLEASE HELP

Answers

10- 9

11- 5

12- 1

13- 10

14- 3

15- 7

16- 3

17- 3

18- 6

Choose the expanded form for the expression.
4(1/4a+b+(-6)
A. a+b-24
B. 4a-6b
C. 4a+b-6
D. a+4b-24

Answers

Answer is D. Multiply 4 into each item in the parentheses.

PLEASE HELP!!!!! You are given an isosceles trapezoid ABCD with median XY. Complete the following.
m

Answers

Lol give me a second

The two triangles shown are congruent

Answers

Answer:

30* or A

Step-by-step explanation:

If the triangles are congruent, corresponding angles and sides are equal.

So angle c is 60* because it is opposite of side x.

angle b is 180-90-60 because all angles add up to 180 in a triangle.

Question 4 of 5 Which expression uses the associative property to make it easier to evaluate 6(5-3)? 1 3 O A. 6(} - ) O B. (6 - 3) O C. 3(6.3) O D. ( 63) SUBMIT
pls help, no links.​

Answers

I think it's a

Step-by-step explanation:

associative property means you can change what ever is in the ()

Answer:

Step-by-step explanation:

What is the integral of x?

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

The integral of x is :

[tex] \dfrac{x {}^{2} }{2} + c[/tex]

major help.......................

Answers

Answer: C. 85°

Step-by-step explanation:

Answer:

I look lik dis almost dreads and then them types of braces and my eye brows look like that and I got a tattoo on my face but my eyes are blue and I have contacts so no more glasses

If LM = 22 and MN = 15 find LN

Answers

Answer:

LN = 37

Step-by-step explanation:

The Segment Addition Postulate tells us that LM+MN = LN

LN=37 because the number is even and odd so it will be 37

Answer for points ig I’ll thank it

Answers

Answer:

thanks

Step-by-step explanation:

Answer:

Thank you (:                                                                  

Identify the slope and y-intercept of the line y = 9x - 3

Answers

Answer:

slope = 9 , y- intercept = - 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = 9x - 3 ← is in slope- intercept form

with slope m = 9 and y- intercept c = - 3

What is the sum to 5(−3.4k−7)+(3k+21)

Answers

Your answer is: -14k-14

Step-by-step explanation:

5(-3.4k-7)+(3k+21)

_17k-35+3k+21

-14k-35+21

-14k-14

Answer:

5(-3.4k-7)+(3k+21)

_17k-35+3k+21

-14k-35+21

-14k-14

Your answer is: -14k-14

y = 2/5x -1/2 + y = -1/3x + 2/3 combine like terms​

Answers

Answer:

2

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

Have a nice rest of your day

#Nova

Which of the following is most likely the next step in the series?
B.
SUBMIT

Answers

A is most likely next

Answer:

I would say A.

Step-by-step explanation:

The pattern is blue, red, red, blue, blue, red, so then another red?

I apologize if im incorrect

What is the slope of this line?

Enter your answer as a fraction, formatted like this: 42/53

Or, if the slope is undefined, enter a lowercase letter "u," like this: u

Answers

Answer:

-1/2

Step-by-step explanation:

To find the slope, you use the rise/run method.

To get from one point to another, you would move 1 unit down (rise) and 2 units to the right (left)

The slope would be -1/2

Hope this helps! Brainliest would be really appreciated!

Two numbers have a sum of 12 and a difference of 4. What is the smaller of the two numbers?
Α. 8
B. 6
C. 4
D. 3

Answers

Answer:

8

Explaining :

4/12 is 8

8+4=12

12-4=8

I hope it work :)

Anne goes out to lunch every Friday. On average she spends around
$18 each time, How much money can she save in one year if she
stops going out for lunch each week?

Answers

Answer:

$936

Step-by-step explanation:

there are about 52 weeks in a year

18*52=936

Hope this helps!

936……………………………………………

What is the surface area in square inches of a cube with a side 7
inches long?
10

Answers

Answer:

28

Step-by-step explanation:

7x4

Answer:

249 inches

Step-by-step explanation:

a cube is equal on all sides so if one side is 7 all sides are 7, if you multiply 7 by 7 you get 49 but that's just one face of the cube, there are 6 faces on a cube so 49 x 6 is 249

586.875 to 2 decimal places​

Answers

Could you explain the question more in the comment so I can help?

What is the least common denominator (LCD) of 13 and 34?

Answers

Answer:

442

Step-by-step explanation:

If x2 + y2 = 14 and xy = 5, find the value of (1/2 x + 1/2 y)2.

Answers

Answer:

(½x+½y)²=6

Step-by-step explanation:

x^2 + y^2 = 14, xy=5

(A+B)^2=A^2 +2AB+B^2... (*)

(1/2x+1/2y)^2 =(*)

(1/2x)^2 +2(1/2x)(1/2y)+(1/2y)^2 =

1/4x^2 +1/2xy+1/4y^2=

1/4(x^2 +y^2) +1/2(xy)=

1/4*14+1/2*5=

14/4+5/2=

14/4+10/4=

24/4=6

let me know if I'm wrong.

( 1/2x +1/2y)²

= { ( x + y )/ 2xy }²

= ( x² + 2xy + y² )/4(xy)² —(1)

As we know that x² + y² = 14 — (2)

and xy = 5 —(3)

So, substitute the value of equation 2 and 3 in equation 1,

= ( x² + 2xy + y²)/4(xy)²

=( 14 + 2*5)/(4*5²)

= 24/(4*25)

= 6/25.

the graph of the equation y=2x-1 is shown in the coordinate plane.

wich lists contain only points that lie on the graph of y=2x-1?
​
A. (0,-1), (15,29), (2,3)
B. (2000, 1999), (3,5)
C. (-2,-3), (-5,-9), (0,0)
D. (-0.5, -2), (0.3, -0.4), (0.5, 0)
E. (1/4, -1/2), (4/5, 3/5)

Answers

Answer:

A, D, & E

Step-by-step explanation:

If you plug in the coordinates, they prove to be valid

(0, -1)

2(0) - 1

0 - 1 = -1

(15, 29)

2(15) - 1

30 - 1 = 29

(2, 3)

2(2) - 1

4 - 1 = 3

(-0.5, -2)

2(-0.5) - 1

-1 - 1 = -2

And so on. Just plug them in and see if it is correct.

find the solutions of the quadratic equation.-x^2+7x-14=0

Answers

Answer:

Step-by-step explanation:

x =(-7+√-7)/-2=(7-i√ 7 )/2= 3.5000+1.3229i

 or:

x =(-7-√-7)/-2=(7+i√ 7 )/2= 3.5000-1.3229i

In triangle XYZ, LX = 45°, LY
= 65°
Find the size of LZ.

PLEASE HELP ILL PAY U $10

Answers

Answer:

Angle Z is 70 degrees

Step-by-step explanation:

The 3 angles of a triangle add up to 180 degrees. Angle x is 45, angle y is 65.

180-45-65 = 180-110 = 70

Other Questions
Solve for the variable g+3.42=7.98g = ? Help with question thanks 2. Write the molecular formula of following Magnesium Chloride, Sodium chloride, potassium nitrate, hydrogen oxide Someone pls help me I will make you brain how many human traits are controlled by a single gene? which number line correctly shows .8 + .3 Compare and contrast the advantages and disadvantages of a LAN to a WLAN.Please someone answer I need the answers urgently. The Hypnotism I dont believe that I can be hypnotized, but I agree to be the guinea pig. I know this mesmerist doesnt really believe in this theory of previous lives, but I will play along just for fun. I can still hear his voice, along with those of my friends seated nearby, so I guess nothing is happening. I am a little sleepy though, so I think I will just close my eyes and rest awhile. Suddenly the noise around me is deafening. I hear metal pounding on metal and the clop of horses feet. Someone is shaking me and yelling in my face to get up or I will get run over. Leave me alone! my mind shouts back. Just then, I feel myself being dragged through the dirt. Dirt? Why am I lying in the dirt? As I slowly open my eyes to the chaos surrounding me, I realize that the crowd is looking at me as if I were from another planet. I feel like Ive fallen into the middle of a Renaissance Festival, and Im the only spectator. I look down t o see myself dressed in tattered clothes. Oh, my gosh! Is this a past life? No. Quickly, I stumble to a bench near a stone wall. This is crazy! The extraordinary sounds, unrecognizable smells, and unbelievable sights around me are almost too much to take in. Where am I? I close my eyes and sit very still thinking about what is going on and what Im going to do about my bizarre situation. I hear my name being shouted. Again someone is trying to wake me up. Im awake, my mind shouts back. Slowly, I look up to see my friends crowding around me. You wont believe where I have been, I tell them. I dont know if I believe it either.The genre of this passage is:FictionNon-fictionBiographyFairytale DIRECTIONS: Matching Match each item in Column A with an item in Column B.Write the correct letters in the blanks. (3 points each)Column AColumn B1. policy that sought peace and stability by satisfying the A. Axis Powersreasonable demands of dissatisfied powersB. "Mukden2. Neville Chamberlain thought the agreement reached there incident"meant "peace for our time"blitz3. used as an excuse for Japanese seizure of ManchuriaD. Vichy France4. unoccupied France, governed by authoritarian regimeE. appeasementunder German controlF. Einsatzgruppen5. German air forceG. Luftwaffe6. Germany, Italy, and JapanH. Munich7. special strike forces for carrying out Nazi Final SolutionConference8. the slaughter of European civilians, particularly EuropeanYalta ConferenceJews, by the NazisJ. Holocaust9. British term for the German air raidsI10. meeting at which the Allies agreed to form a UnitedNations organization (03.01 MC)Re-read paragraph 14 from the speech carefully before you choose your answer.So the president resisted Soviet expansion and pressed down on Soviet weakness at every point until the day came when communism began to collapse beneath the combined weight of those pressures and its own failures. And when a man of good will did emerge from the ruins, President Reagan stepped forward to shake his hand and to offer sincere cooperation.The function of this paragraph is to emphasize Reagan's (3 points)authoritarian approach to ending the Cold Warpatience and triumph in ending the Cold Warstrong desire for cooperation with Russiaunderhanded skill in managing the Russian empireI think its patience and triumph what is pitch a part ofA. Musical elementsB. VoicesC. InstrumentsD. Rhythms Make an inference about Awinita's family and their lifestyle. una historieta con distinstas imagenes y los conceptos de las placas tectonicas Explain why it does not matter which point you choose when writing theequation of the line in point-slope form, given two points. 1.Analyze the following text using formal analysis.She's a night owl.a. the speaker sleeps early.b. the speaker sleeps late at night.c. the speaker is awake during the day.d. the speaker is awake during the night.help me please Which sentence best corrects the misplaced modifier? From the back porch. I watched the heron out on the pond of the house where my sister lives O I watched the heron out on the pond from the back porch of the house where my sister lives. O I watched from the back porch of the house where my sister lives the heron out on the pond. O Out on the pond, I watched the heron from the back porch of the house where my sister lives. o Where my sister lives, I watched from the back porch of the house the heron out on the pond 1 2 2 I'm confused on when to use "y" or "e" for saying "and" in Spanish. Can someone please explain XD Checa esta app! Hay millones de estudiantes ayudndose entre otros con sus tareas escolares. https://brainly.app.link/qpzV02MawO hola Question 18Calculate the mean 12, 2, 9, 12, 10 There are 133 students at a small school and 23 of them are freshmen. What fraction of the students are freshmen?