Mathematics High School

Solve x2 – 18x + 81 = 4 by completing the square. Select any solutions that apply.

A. x = –11
B. x = –7
C. x = 7
D. x = 11

Answers

Answer 1

Answer:

7 and 11

Step-by-step explanation:

Related Questions

does anyone know how to do this

Answers

Answer:

Step-by-step explanation:

The domain is basically the highest x and the lowest x.

[-3, ∞)

The range is the highest and lowest y.

[-4.649, ∞)

Local maximum is the highest part of the specific part of the graph.

(-1.423, 3.389)

And the local minimum is basically the same thing but with the lowest part.

(1.757, -4.649)

I. find the distance the two given points​

Answers

Answer:

Step-by-step explanation:

Use the formula,

distance = √[(x1-x2)^2 + (y1-y2)^2]

If the area of a sector is 100 ft^2 and the radius of the circle is 22 ft what is the central angle measure for that sector and what is the length of the arc

Answers

Answer:

[tex]\displaystyle \theta=0.413\ rad[/tex]

L= 9.086 feet

Step-by-step explanation:

Area of a Circular Sector

Given a circle of radius r, the area of a circular sector defined by a central angle θ (in radians) is given by

[tex]\displaystyle A=\frac{1}{2}r^2\theta[/tex]

And the length of the arc is:

[tex]L=\theta r[/tex]

We know the area of the sector is 100 square feet and the radius is r=33 ft, thus:

[tex]\displaystyle 100=\frac{1}{2}r^2\theta[/tex]

Solving for θ:

[tex]\displaystyle \theta=\frac{200}{r^2}[/tex]

[tex]\displaystyle \theta=\frac{200}{22^2}[/tex]

[tex]\displaystyle \theta=0.413\ rad[/tex]

The arc length is:

[tex]L=0.413* 22[/tex]

L= 9.086 feet

Jackson practices piano four times a week he practices for 40 minutes each time how many minutes does Jackson practice until weeks

Answers

Answer:

160 min or 2.66666667 hours per a week

Step-by-step explanation:

its very simple

40*4=160

hope I helped :)

what is a quadrant in math

Answers

A quadrant is one of the 4 divided areas of a coordiante plan.

how has personal finance literacy affect you in your daily life?

Answers

Answer:

I have no idea. Is this a real question? If it, I'll answer it to the best of my ability. :)

Step-by-step explanation:

need help solving this problem down below.​

Answers

Answer:

1 / We have the area of a rectangle ABCD = 8 x 16 = 128 ft²

2 / Find the area of an isosceles Δ DEF:

The base of the isosceles ΔDEF => DF = DC- FC = 16 -12 = 4 ft

So the area of Δ DEF = 1/2 (DF x EH) = 1/2 (4 x 6) = 12 ft²

3 / Area of the irregular shape = area ABCB + Area DEF = 128 + 12 = 140 ft²

Step-by-step explanation:

Which interval on the graph could be described as linear increasing?

A

B

C

D

Answers

The right answer is B.

The absolute value of 7

−12

is ​

Answers

Answer:

7

Step-by-step explanation:

Answer:

Step-by-step explanation:

Do you mean 7-12, or 7/(-12)?

7-12 = -5, so the absolute value of 7-12 is 5.

The absolute value of 7/(-12) is 7/12.

A new barber shop just opened up in your neighborhood. You can buy two haircuts for $10 or six haircuts for $22. Is the cost a proportional or non-proportional relationship?

Answers

Answer:it is non proportional

Step-by-step explanation:

Calculate the quotient.
A. 3/4 divided by 5 1/5 is?
B. 3/7 divided by 2 1/2 is?
C. 5/8 divided by 6 5/6 is?
D. 8 3/10 divided by 5/8 is?

Answers

A) 3/4 ÷ 5 1/5.

Answer:

[tex] \frac{15}{104} [/tex]

B) 3/7 ÷ 2 1/2.

Answer:

[tex] \frac{6}{35} [/tex]

C) 5/8 ÷ 6 5/6.

Answer:

[tex] \frac{15}{164} [/tex]

D) 8 3/10 ÷ 5/8.

Answer:

[tex]13 \frac{7}{25} [/tex]

HELPPP PLSSSS I REALLY NEED HELP!!!

Answers

Answer: 108°

Step-by-step explanation:

Answer:

108Step-by-step explanation:

Remember that the total amount of degrees in a pentagon is: 540, and there are 5 sides, so divide 5 by 540:

540/5 = 108

108 is your answer.

My point exactly in algebra.

Answers

lol this is so true ( i just want points)

Edward's phone
is currently at 13% charged. He plugs his phone in and notices that it is
charging at a rate of 3% per minute. Let m = the number of minutes the
phone is plugged in

Answers

M=4.3333
Hope this helped

What is the perimeter of the composite figure?
85 cm
107.5 cm
119.5 cm
97 cm​

Answers

Answer:

102.90

Step-by-step explanation:

i just did it

Answer:

107.5 cm is the correct answer

Step-by-step explanation:

1. What is the last step in constructing an angle?
Help please
For 30 points!!!

Answers

Answer:

The second choice. Connect the endpoint and the mark at the angle measure.

Step-by-step explanation:

Answer:

Connect the endpoint and the mark at the angle measure.

Step-by-step explanation:

Fiona was thinking of a number. Fiona divides by 8, then adds 11 to get an answer of 7. What was the original number?

Answers

7 - 11= -4
-4 x 8= -32
Original number was -32

Answer:

-32

Step-by-step explanation:

Do the opposite of everything to fin the number:

7 - 11 = -4

-4 x 8 = -32

Check to see if it's true:

-32/8 = -4

-4 + 11 = 7

So the original number was -32, because when you divide it by 8 then add 11 it equals 7.

4. Leroy creates customized engraved

birthday cards for his schoolmates.

He charges them $0.75 per card, plus a

dollar for each engraved letter in

the recipient's name. The equation

C=0.75 + l describes the cost of a card

in dollars, c, that has a certain number of

letters in the name, l.

Number of Letters

in Name

Cost of Card

(dollars)

3.75

5.75

6.75

8.75

If you have $10.75 to spend on a card,

how many letters can be in the recipient's

name?

Answers

Answer:

10

Step-by-step explanation:

C = 0.75 + L

For L = 3 ; Cost, C = 3.75

3.75 = 0.75 + 3L

3.75 - 0.75 = 3L

3 = 3L

L = 3/3

L = $1

C = 0.75 + 1L

If amount spent is $10.75; C = 10.75

10.75 = 0.75 + L

10.75 - 0.75 = L

10 = L

Number of letters = 10

Hellppppp plzzzzzzzz

Answers

a) 20/37
b) 11/37
c) 34/37
d) 9/37

For every dime spent DeVita receive 15 food Pepsi the animals in the petting zoo David has fed the animals a total of 135 food pebbles right in Savon equation to find the number of dimes Davida spent at the petting zoo

Answers

Answer:

9

Step-by-step explanation:

135 divided by 15 and u got ur answer


What is the zero of r(x) = 8/3x - 16

Answers

Answer:

x=1/6

Step-by-step explanation:

Plug in 0 for r(x)0 = 8/3x - 1616 = 8/3x16(3x)=83x=8/163x=1/2x=1/6

Which of the following could NOT be a possible option of the third side to a triangle with the sides 4 inches and 12 inches? *
A. 9 inches
B. 12 inches
C. 8 inches
D. 13 inches

Answers

Answer:

D

Step-by-step explanation:

brainliest

how to prove converse of. basic proportionality theorem​
please answer within one hour

Answers

Step-by-step explanation:

plz mark my answer as brainlist plzzzz.

hope this will be helpful to you.

Answer:

two different ways of theoretical and experimental explanation

both are correct

hope they helped you

The track club runs the 50-yard dash. How many inches do they run?

Answers

Answer:

1800in

Step-by-step explanation:

3ft=1yd

3x50=150ft

12in=1ft

12x150=1800in

Answer:

Step-by-step explanation:

1 yard = 36 inches

50 yards = 36 x 50 = 1800 inches

What is the solution to the equation 3 − 4(2m + 6) + 3m = −16? (put number answers only)
What is the solution to the equation 2 + 3(x − 10) = −40? (put number answer only)
What is the solution to the equation 5(2x + 3) − 2x = 31? (put number answer only)
What is the solution to 1/4(2w-12)+6=8 (put number answers only)

Answers

Answer:

1. -1

2.-4

3. 2

4.10

Classes M Casa Grande Eleme... Ss Grades and Attend..
N Netflix
h Stream TV and Mo...
School: Practice & Problem Solving
Assignme
x) 5.3.PS-7
Question Help
Together, teammates Pedro and Ricky got 2690 base hits last season. Pedro had 284 more hits than
Ricky. How many hits did each player have?
Pedro had base hits.
S
(1,1)
More

Answers

Answer:

can you explain more ........waht is this

Step-by-step explanation:

which of the following trigonometric ratios is equal to 0?
cos π
sin 2π
cot 3π
cos 4π

Answers

Answer:

sin 2π

Step-by-step explanation:

   

None of the given trigonometric functions are equal to zero.

What are trigonometric ratios?

Trigonometric ratios are used to define the relation between the sides of a right - angled triangle.

Given are the trigonometric functions.

cos π = - 1

sin 2π = 1

cot 3π = -1

cos 4π = 1

None of the functions are zero.

Therefore, none of the given trigonometric functions are equal to zero.

To solve more questions on trigonometric ratios, visit the link below -

https://brainly.com/question/25122832

#SPJ2

What is the solution to this inequality?

6x−5 > −29


​ x −4 ​

​ x>4 ​

Answers

Answer: x>−4

Step-by-step explanation:

Let's solve your inequality step-by-step.

6x−5>−29

Step 1: Add 5 to both sides.

6x−5+5>−29+5

6x>−24

Step 2: Divide both sides by 6.

6x/6>-24/6

x>-4

Answer:

x > -4

Step-by-step explanation:

I took the test k12

Find RS.
S
390
4
R.
Write your answer as an integer or as a decimal rounded to the nearest tenth.
RS =

Answers

Answer:

RS ≈ 6.4

Step-by-step explanation:

Using the sine ratio in the right triangle

sin39° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{QR}{RS}[/tex] = [tex]\frac{4}{RS}[/tex] ( multiply both sides by RS )

RS × sin39° = 4 ( divide both sides by sin39° )

RS = [tex]\frac{4}{sin39}[/tex] ≈ 6.4 ( to the nearest tenth )

help me with this multiple choice !

Answers

Answer:

60 30 special triangle

answer is b

Answer:

B

Step-by-step explanation:

Other Questions
What happened to the original demand curve? What are 2 or 3 jobs that sound interesting? Why are they interesting? Mason bought c chocolates. Cameron bought 20 times as many chocolates as Mason. Write an expression that shows how many chocolates Cameron bought. Two brothers are participating in a race. The older brother's average speed is 6 miles per hour and he finishes the race in 1 hour and 20 minutes. If the younger brother's average speed is 4 miles per hour, how long will it take him to complete the race?A.) 45 minB.) 2 HoursC.) 4 HoursD.) 30 min Pls help me no one explanation I will mark tysmmm 4. An egg is falling (not freely, do not neglect air resistance) from a nest in a tree. Diagram the forces acting onthe egg as it falls Answer this no jokes giving brainliest Gabby buys a new purse for $33. The sales tax in her state is 6%. How much is the sales tax? What is the slope of this graph What does the underlined word mean in the following sentence? El polica nos ayuda mucho.police officerpoliticianplumberpainter Actions to take when capture is imminent include. (Select all that apply) A. Leave evidence of presence at capture point B. Sanitize personal or sensitive materials C. Try to retain your personal cell phone communicate your situation Please answer quickly 14 points for it :) Please triple check What is the answer to a + b = 1. What does Malcolm X think the goal of any revolution should be?2. How does Malcolm X justify violence as a means for black Americans to improve themselves?3. According to Malcolm X, what is the difference between a Negro revolution and a black revolution?4. According to Malcolm X, what are Uncle Toms and how do they slow progress for blacks in America? A baker cut a pie in thirds. He cut each third into 4 equal pieces and each piece into 2 equal slices. He sold14 slices.What fraction of the pie did the baker sell?The baker soldof the pie. How many solutions exist for the given equation?3(x - 2) = 22 - x 1. Christianity: Christians believe that Jesus of Nazareth was the Jewish messiah, or the... A. savior of the world B. conquering admiral C. god's spiritual captain D. protector of the world What embarrasses you the most and/or what's been your most embarrassing moment? x(3x - 5) please and 5x(x - 3y) urgent !