Find the solutions to the equation by completing the square. x2-6x=7

Answers

Answer 1

Subtract 7 from both sides

x^2 - 6x - 7 = 7 - 7

Simplify

x^2 - 6x - 7 = 0


Answer :

The final solutions to the quadratic equation are:

x = 7, -1

Related Questions

If y equals -3 then 4 + y / 4 y =

Answers

Answer:

[tex] y = - 3 \\ \frac{4 + y}{4y} = \frac{4 + ( - 3)}{4( - 3)} = \frac{4 - 3}{ - 12} = \frac{ - 1}{12} [/tex]

Answer:

6.25 or 8 try those

Step-by-step explanation:

You might need: Calculator
At an ice carving competition, each carver starts with a block of ice with the dimensions shown. The block is
wrapped in a special reflective material to keep it from melting before the competition starts.
1.1 m
0.8 m
1.3 m
How much reflective material is needed to cover the block completely, without any overlaps?
Give an exact answer (do not round).
m?

Answers

So, what you are supposed to find here is the surface area of this rectangular prism. So the answer is 52 units of the special reflective material is needed.

Since total surface area of a rectangular prism = 2(lb + bh + hl)

Where l = length of the ice block

b = width of the ice block

h = height of the ice block

Now total surface area for the given dimensions = 2(4×2 + 2×3 + 3×4)

= 2(8 + 6 + 12)

Answer:

It's 6.7

Step-by-step explanation:

Got 52 on Khan Academy for you. It's 6.7

f(x) = 2x^2 - 4x - 5
vertex? (x,y)
number of solutions?
range?

Answers

Answer:

F(x) = 2x^2 - 4x - 5

vertex? (1,-7)

range?

{y|y>=-7}

number of solutions?

Sorry I couldn’t find the answer, I hope this will do.

O Critical values: r=0.514, no significant linear correlation
14. Use the given data to find the best predicted value of the response variable.
(1 poi
Based on the data from six students, the regression equation relating number of hours of
preparation (x) and test score (y) is y = 67.3 +1.07x. The same data yield r=0.224 and
y = 75.2
What is the best predicted test score for a student who spent 4 hours preparing for the
test? Use a = 0.05.
0 78.1
0 75.2
O 71.6
O 59.7

Answers

Answer:

71.6

Step-by-step explanation:

Substitute x w/ 4 using the LSRL equation.

1. Narrow building The Sam Kee Building in Vancouver is the narrowest
commercial building in the world. The ratio of its length to its width is 503,
It is 30 m long. How wide is it?

Answers

Length:Width
530:1
30:x
X/30= 1/530
Multiply 30 on both sides
X= 3/53 =0.05660377

Helpppp meee pleaseee

Answers

Answer:

Refraction trust me  I am in high school biology

Step-by-step explanation:

I looked it up it said the reflection hope its right

A car is about 4000 pounds. Which comparison is true?

A. 4,000 pounds < 2 tons

B. 4,000 pounds > 2 tons

C. 4,000 pounds < 8,000 ounces

D. 4,000 pounds = 2 tons

Answers

Answer:4, 0p0 to tons

Step-by-step explanation:because

what is -5 7/18 as a decimal​

Answers

Answer:

-5.38

Step-by-step explanation:

It is -5.38 but the 8 is like infinite, I just can't put a line on top of the 8 on here.

The spinner below is spun, then a month of the year is randomly selected. Find the probability of P(unshaded, then a month that starts with the letter A)

Answers

Answer:

C)150

Step-by-step explanation:

P (blue)  fraction = 2/8   decimal=.25     percent=25%

P(purple) fraction=0/8   decimal=0         percent =0%

P(not green)  fraction=5/8     decimal=.625     percent= 62.5%

P(not brown) fraction=8/8     decimal=1   percent =100%

2)Refer to the table on air travel selected airports. Suppose a flight that arrived at El Centro is selected at random. What is the probability that the flight did not arrive on time? write your answer as a fraction, decimal and percent.    

80% on time so 20% are not on time

20/100 ÷ 20 =1/5

20%, .2, 1/5

3)The spinner has 8 sectors labeled with letters. Each sector of the spinner below is the same size, as shown.

If the arrow is spun 400 times , how many times  would it be  expected to land on a sector labeled B?

A)50                 C)150

B)100                D)250

PLEASE MARK ME AS BRAINLIEST

What is the area of the shaded sector?

Answers

Answer:

C

Step-by-step explanation:

The central angle is equal to the arc that subtends it, that is 54°

area of sector = area of circle × fraction of circle

A = πr² × [tex]\frac{54}{360}[/tex]

   = π × 10² × [tex]\frac{3}{20}[/tex]

   = 100π × [tex]\frac{3}{20}[/tex] ( cancel 20 and 100 )

   = 5π × 3

   = 15π cm² → C

Which is the product of product of (-1 2/5) (-2 3/4)? A. -2 3/10 B. 2 3/10 C. 3 17/20 D. -3 17/20 E. 6 9/10​

Answers

can you understand? let me know in comment

can someone please help me on this problem

solve (round to two decimal places)

Answers

Answer:

27.42

Step-by-step explanation:

can someone please gimme some ideas of what to do, it has to be 2 pages and i have such a hard time writing stories about things i’m not very interested in. thanks so much!

Portfolio Directions and Rubric
Select an event that took place in the years that followed World War I (1919–1945)
and imagine it through the eyes of a person of the time period. Choose a persona that
is in some way significant to Georgia. For example, you could choose to portray a
black soldier returning home to Atlanta from WWII, Eugene Talmadge opposing the
New Deal, or President Franklin D. Roosevelt visiting the mineral springs in Warm
Springs, Georgia.

Answers

Answer:

Put all your elctronices far away from you focuse and engage in the story and focus i can t tell you enough

Step-by-step explanation:

La diferencia comun es?
1. el numero contante por que se multiplica
2. el numero contante por que se suma o resta

Answers

Answer:

2. el numero contante por que se suma o resta

Lily begins solving the equation 4(x – 1) – x = 3(x + 5) – 11. Her work is shown below.

4(x – 1) – x = 3(x + 5) – 11
4x – 4 – x = 3x + 15 – 11
3x – 4 = 3x + 4
How can her partial solution be interpreted?

The equation has one solution: x = 0.
The equation has one solution: x = 8.
The equation has no solution.
The equation has infinite solut

Answers

Answer:

The equation has no solution.

Step-by-step explanation:

3x-4=3x+4

3x-3x=4+4

0x=8

How would - pi be classified?

Answers

Answer:

Step-by-step explanation:

D)  irrational and real  :)

Joke:

what did "pi" say to  "i"    

"get real dude "   :P  ( a math joke )

ind the perimeter of the figure. Round your answer to the nearest hundredth
7 in.
8 in.
12 in.

Answers

Answer:

52.85

Step-by-step explanation:

perimeter of the rectangle is 40

perimeter of the half circle is 12.85

add those two together and get 52.85

MARK ME BRAINLIEST PLEASE

A picture that measures 10 cm long is reduced on a copy machine to 4 cm long. If the width of the original picture is 6 cm, what is the width
of the reduced picture? Set up a proportion to solve this problem?

Answers

2.4 cm

Step-by-step explanation:

10/4 = 6/x

x = width of reduced picture

24 = 10x (cross multiplication)

24/10 = x

2.4 = x

The width of the reduced picture is 2.4 cm.

Solve for x. -- 2x + 6 = 30 - 6x -6 6 -8 8​

Answers

Answer:

6

Step-by-step explanation:

[tex]-2x+6=30-6x\\\\4x+6=30\\\\4x=24\\\\x=6[/tex]

1. add 6x to both sides

2. subtract 6 from both sides

3. divide both sides by 4

[tex]\boxed{\large{\bold{\textbf{\textsf{{\color{blue}{Answer}}}}}}:)}[/tex]

-2x+6=30-6x

-2x+6x=30-6

(-2+6)x=24

4x=24

[tex]\sf{x=\dfrac{24}{4} }[/tex]

x=6

Find the area of the circle to the nearest hundredth.
4 in.
18
area: about in.2

Answers

Answer: 50.24

Step-by-step explanation:

The equation to find the area of a circle is pi*r^2. First, r^2 is 4^2 which is 16.  Then times pi. Assuming pi in this case is 3.14, 3.14 times 16 is 50.24.

What is the square root of 121?
A)
9
B)
11
C)
18
D)
22.

Answers

Answer:

11

Step-by-step explanation: 11 times 11 equals 121

This person has been spamming me so I know they’ll read this. Your a really annoying person. All you do is spam useless links and have been spamming me. I can’t even ask questions because he fills the answers with links. Just go away or shut U P. Thank you

Answers

Answer:

The same person does that to me and i heard to NOT mess with those link because they can find our address or something

Step-by-step explanation:

Kim is training for a triathlon. She bikes 8 km for every 2 km that she runs.
Kim ran 10 km last week. How far did Kim bike?

Answers

Answer:

I Think the answer might be C

Step-by-step explanation:

10-2=8

8+8=16

which value of x makes this equation true​

Answers

Answer:

65

Step-by-step explanation:

Let's find

[tex] \sf \hookrightarrow \: 35 + 42 = 12 + x \\ \sf \hookrightarrow \: 77 = 12 + x \\ \sf \hookrightarrow \: x = 77 - 12 \\ \sf \hookrightarrow \: x = 65[/tex]

classify a triangle whose side lengths are 8, 16, and 18

Answers

Answer:

Acute

Step-by-step explanation:

Acute Triangle. It is all lower that 90°

What is the factorization of the trinomial below?
2x2 - 16x + 30
A. 2(x-3)(x-5)
B. 2(x-3)(x-10)
C. 2x(x-3)(x-10)
D. 2x(x-3)(x-5)

Answers

Answer:

A) 2(x-3)(x-5)

Step-by-step explanation:

2x^2-16x+30

2(x^2-8x+15)

2(x-3)(x-5)

The factors for the given trinomial is 2(x-6)(x-5)

What is a trinomial?

A trinomial is an algebraic expression that has three non-zero terms and has more than one variable in the expression.

Given is a trinomial, 2x²-16x+30

On factorizing,

= 2x²-16x+30

= 2x²-10x-6x+30

= 2x(x-5)-6(x-5)

= (2x-6)(x-5)

= 2(x-6)(x-5)

Hence, the factors for the given trinomial is 2(x-6)(x-5)

For more references on trinomial, click;

https://brainly.com/question/16347049

#SPJ2

1. The perimeter of a rectangle is 56 inches. The rectangle is 19 inches long. How wide is the rectangle?

Answers

Answer:

let, width be 'x'

perimeter of rectangle=2(length+width)

56=2(19+x)

56=38+2x

2x=56-38

x=18/2

x=9inches

so, the width of rectangle is 9 inches.

hope it helps.

why is the order you use to name polygons important when writing a congruency statement?

Answers

Answer:

When stating that two triangles are congruent, use a congruence statement. The order of the letters is very important, as corresponding parts must be written in the same order. Notice that the congruent sides also line up within the congruence statement. One congruence statement can always be written six ways.

Step-by-step explanation:

1. Name the triangles that are congruent.
2. What postulate support your answer?
3. Name all other angles and segments that are congruent.
4. What can you say about UN in relation to <JUG and JG

Answers

Answer:

plz mark as brainlist///////

∠A=angle, A, equals
^\circ

degrees
Round your answer to the nearest hundredth.

\

Answers

Answer:

What are you asking?

Step-by-step explanation:

∠A=angle, A, equals  ^\circ  ∘ degrees  Round your answer to the nearest hundredth. \

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