Mathematics High School

If using the method of completing the square to solve the quadratic equation
x2 + 2x 31 = 0, which number would have to be added to "complete the
square"?

Answers

Answer 1

Answer:

3

Step-by-step explanation:

Related Questions

245 tickets in 5 days what is the unit rate

Answers

Answer:

245/5 = 49 tickets per day

Answer:

245 / 5 = 49 so

49 tickets per day

Please help me I will give Brain

Answers

Answer:

your answer would be 68

Step-by-step explanation:

because it looks like in the photo that it is bigger then the 72 but smaller then the 90 so the answer would be 68

please mark me brainlyest?

PLEASE HELP PLEASE ! 50 POINTS!

Answers

Answer:

From left to right:

x=-9

x=-23

x=24

x=8

x=-9

x=-28

Step-by-step explanation:

63/-7=-9

-15-8=-23

12*2=24

-4*-2=8

-20+11=-9

-7*4=-28

-7x=63 answer is -9

x + 8=-15 answer is -7

1/2x=12 answer is 24

x/-2= -4 answer is 8

x-11=-20 answer is -9

1/4x=-7 answer is -28

(x+4) (x-1) in standard form

Answers

Answer:

x^2-5x+4

Step-by-step explanation:

(x+4)(x-1) in standard form is x^2-5x+4

How do u evaluate x+11?

Answers

Answer:

You can't.

Step-by-step explanation:

You have nothing to substitute for the x.

A car and a truck left Washington, DC traveling in opposite directions. The car
traveled 19 miles
per hour faster than the truck, and at the end of 8 hours they were
1048 miles apart. What was the average speed of each vehicle?

Answers

Answer:

The speed of the car is 75 mph.

The speed of the truck is 56 mph.

Step-by-step explanation:

Call the speed of the truck (x) miles per hour. As per the given information, the car is (19) miles per hour faster. Thus, one can form expressions to represent the speeds of the vehicles.

car = ( x + 19 ) mph

truck = ( x ) mph

Using the formula, ( (speed) * (time) = (distance) ), one can say that the speed of the car, times the time it took plus the speed of the truck times the time will equal the distance between the two vehicles:

(( car speed )( time )) + (( truck speed )( time )) = ( distance between vehicles )

Substitute,

( ( x + 19 ) ( 8 ) ) + ( ( x ) ( 8 ) ) = 1048

Simplify,

8x + 152 + 8x = 1048

16x + 152 = 1048

       -152     -152

16x = 896

/16     /16

x = 56

Add (19) to find the speed of the car:

truck speed + 19

= 56 + 19

= 75

The speed of the car is 75 mph.

The speed of the truck is 56 mph.

Answer:

The truck traveled at 81

mph. The car traveled at 100

mph.

Step-by-step explanation:

Solve 4/s=-2/9 please help

Answers

Answer: 4/15

Step-by-step explanation:

hope it's help you.......

what is the slope of the graph?

Answers

The answer to your question is y=2-2x

2 + 14 + 2 − 12 = -4

Answers

Answer:

The answer is actually 6.

Answer:

no, it's 6.

Step-by-step explanation:

Look at this equation. 3(x + 1) = 3x + Which number can be placed in the box that would create an equation that has an infinite number of solutions? OA) O OB) 1 C) 2 OD 3​

Answers

[tex]52 - x = 52[/tex]

[tex]x = 52 - 52[/tex]

[tex]x = 0[/tex]

Use Substitution to solve the following System of Equations.
y= 4x + 3
y = -2 – 2

Answers

Set them equal to each other then solve

Polynomials math question

Answers

The answer is b I just took the whole test

Please answer ASAP no links please and thanks u

Answers

Step-by-step explanation:

the answer is b

Answer:

C. 120 ft^2

Step-by-step explanation:

The area of the triangles= (1/2*3*4)2=12

The area of the larger parallelogram=5*9=45

The area of the bottom rectangle=4*9=36

The area of the vertical rectangle=3*9=27

Totale Surface Area=12+45+36+27=120

20% of what number is 80?​

Answers

[tex]\text {Hi There! Let's Solve this Problem!}[/tex]

[tex]\text {To Solve this Problem you'll be Dividing the Numbers. Dividing this problem}[/tex] [tex]\text {will get your answer.}[/tex]

[tex]\text {\underline {Divide}}[/tex]

[tex]\text {80/20 Percent}[/tex]

[tex]\text {Your Answer Would Be:}[/tex]

[tex]\Huge\boxed {400}[/tex]

[tex]\text {Best of Luck!}[/tex]

Answer: 400

Step-by-step explanation: ...

Pls help me just drop the answer below I need help fast

Answers

Answer:

i believe the answer is 0,2

The answer would be 0,2

Solve
5x+y=-17 8x-3y=-18

Answers

Answer:

x = -3

y = -2

Step-by-step explanation:

Answer:

( x,y ) = ( 72/163,-3294/163

Please help, I will give brainliest, and look at the screen shot!

Answers

Where’s the question?? I can’t answer without a question.

David used the computer a total of 45 hours last week. How
many more did David use the computer to play games than to do
homework?

Answers

DO NOT GO TO THAT LINK IT IS A VIRUS

please help!! I'll give you brainlyest (however you spell it) just please!! A bottle of orange juice contains 750 mg of vi C and has 6 servings. A bottle of cranberry juice contains 135 mg of vitamin C las 1.5 servings. Mrs. Kahn wants to compare the amount of vitamin C in the juices.
How does the amount of C in each type of juice compare? One serving of ____ (answers are orange or cranberry) juice has ____ mg more vitamin C per serving than one serving of _____ (answers are orange or cranberry) juice

Answers

Answer:

One serving of orange juice has 30 mg more vitamin C per serving than one serving of cranberry juice

Step-by-step explanation:

Which shape shows a reflection?

I’m scared to answer because I’m at 90 and I know if I get it wrong I’ll drop again

Answers

Answer:

B! Can I plz have Brainliest!!!!

Step-by-step explanation:

I've never gotten one before!

0.242 to the nearest hundredth

Answers

two digits after the decimal point it the hundredths place
so we want to round to the place 4 is in
The number after 4 is 2, so we will round down
We will get 0.24

Pencils cost $.10 and erasers cost $0.25. steve bought 5 more pencils than erasers. he spent a total of $1.55. how many erasers did steve buy?

Answers

Answer:

Let x be the number of pencils Steve bought.

Let y be the number of erasers Steve bought.

x=y+5

0.1x + 0.25y = 1.55

Solving the system, our answer is: (8, 3)

So, she bought 3 erasers.

Let me know if this helps!

Find a real-world example of this diagram. Next, write and solve a word problem about parallel lines and their associated angles based on your real-world example of the diagram.

Answers

Answer:

Step-by-step explanation:

A road

What is the value of x?
16
30
X=?

Answers

Answer:

Step-by-step explanation:

It’s a right triangle, so use the Pythagorean Theorem.

x^2 = 30^2 + 16^2 = 1156

x = 34

What is the area of the triangle of (-5,6),(1,3),(-5,-3)

Answers

Answer :

Hey there! I'm happy to help!

To find the area of a triangle you multiply the base by the height.

We see that our base is 5 units long because it stretches from -6 to -1 on the coordinate plane. Our height is 8 because the y value goes from 3 to -5.

To find the area of a triangle, you just multiply the base by the height then divide by 2.

5(8)=40

40/2=20

The area is 20 square units.

Have a wonderful day! :D

Is This What You Triangle Looks Like?

HELP HELP HELP HEPL memememememme

Answers

Answer:

A.

Step-by-step explanation:

vertical translation UP 1 unit

Someone please help with this!!!

Answers

Answer:

y=100x+18

Minutes included over the cost of plan

cost of plan starts

Step-by-step explanation:

Ready for this quick math? 10 + 5 x 14 + 32 x 11 - 2 x 1 + 56 x 111 + 76 - 83458 =. Try solving this. ( Then subscribe to socksfor1).

Answers

Answer:

The answer for this is -76736

Step-by-step explanation:

The sum of two numbers is 57 and the difference is 5. What are the numbers?
larger number:
smaller number:

Answers

Answer:

25+22

Step-by-step explanation:

When you subtract 27 to 22

Answer:

31 and 26

Step-by-step explanation:

31 + 26 = 57

31 - 26 = 5

Therefore, your answer is 31 and 26

Morning donuts recently sold 18 donuts of which 1 was a cake donut. What is the experimental probability that the next donut sold will be a cake donut

Answers

1 in 18 chance because one was cake out of 18 donuts
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