Which three steps are correct when solving this quadratic equation by completing the square? X^2-10x=39

Answers

Answer 1

Step-by-step explanation:

Any answer that involes,

Step 1: Complete the Square

[tex] {x}^{2} - 10x = 39[/tex]

[tex]( \frac{ - 10}{2} ) {}^{2} = 25[/tex]

[tex] {x}^{2} - 10x + 25 = 64[/tex]

Step 2: Turn the left side into a binomial

[tex](x - 5) {}^{2} = 64[/tex]

Step 3: Solve for x.

[tex]x - 5 = + - 8[/tex]

[tex]x - 5 = 8[/tex]

[tex]x = 13[/tex]

OR

[tex]x - 5 = - 8[/tex]

[tex]x = - 3[/tex]

X=-3 or X=13


Related Questions

Helppppppppppp AND NO LINKS

Answers

the scatter plot is negative


HELP ASAP PLS DONT GUESS ANSWER QUESTION IN PIC PLS

Answers

Answer: It's C

Step-by-step explanation:

Three boards are placed end to end to make a walkway. The first board is 2 feet 6 inches long, the second board is 3 feet 2 inches long, and the third board is 5
eet 7 inches long. How long is the walkway?
Write your answer in feet and inches. Use a number less than 12 for inches.

Answers

Step-by-step explanation:

TALA RHYTHMIC PATTERNS

ACTIVITY 2: LET'S DO TALA

kind of membranophones/percussion instruments found at home for tapping. Record your

Directions: Perform the following tala rhythmic patterns using the given legend. Use any

performance using any recorder and send it to your

INSTRUMENTS AT HOME

MANJIRA

TIN CANS

1 2 3 4 5 6

х

1 2 3 4 5 6 7 8 9 10 11 12

GHATAM

PAL

X

х

0 X

TABLA

1 2 3 4 5 6 7 8 9 10

BOX

x xox

Answer:

11 feet 3 inches

Step-by-step explanation:

1 feet = 12 inches

Add up the lengths:

2 ft 6 in + 3 ft 2 in +5 ft 7 in

-------------------

10 ft 15 in = 10 ft + 12 in + 3 in = 10 ft + 1 ft + 3 in = 11 ft 3 in

f(x) = V22
g(x) = V322
Find (f .g)(x). Assume x2 0.
O A. (f.g)(x) = 8x
B. (f.g)(x) = 8VC
O c. (f.g)(x) = 32x
D. (f.g)(x) = V34x

Answers

Answer:

Step-by-step explanation:

g(x) = √(32x) = √(2⁵x) = 4√(2x)

(f∘g)(x) = f(g(x))

= f(4√(2x))

= √(2 ⋅ 4√(2x))

= √(8√(2x))

= √8∜2∜x

= ∜(2⁷x)

= ∜(128x)

which doesn’t match any of the choices. There’s an error in the question.

I believe that the functions were written incorrectly and the x should not be part of the radicands (see attachment). That makes the answer A.

Please help with this math question'

Answers

Answer:

h = 1296 feet

Step-by-step explanation:

Given that,

The vertical position of the object is :

[tex]h(t)=-16t^2+160t+896[/tex] .....(1)

We need to find the highest height reached by the object. For highest height,

Put dh/dt = 0

[tex]\dfrac{d}{dt}(-16t^2+160t+896)=0\\\\-32t+160\\\\t=\dfrac{160}{32}\\\\t=5\ s[/tex]

Put t = 5 in equation (1).

[tex]h(5)=-16(5)^2+160(5)+896\\\\=1296\ ft[/tex]

So, the height reached by the object is 1296 feet.

The scale on a map is 1in. = 2 mi. On the map, Greg’s house is 4in. from Melissa’s house. What is the actual distance from Greg’s house to Melissa’s house?

Answers

The distance from Greg's house to Melissa's is 8 mi.

Step-by-step explanation:

Multiply 4 by 2.

What is the equation of the line that passes through the point (8,9) and has a y-intercept of -3?

Answers

Answer:

y=3x/2-3

Step-by-step explanation:

y=mx+c

9=m(8)-3

9+3=8m

12=8m

m=12/8

m=3/2

The equation of the line is y=3x/2-3

mrs cofflands social studies class gas 14 boys and 9 girls in it what is the ratio of girls to boys write it 3 different ways​

Answers

Answer:

1.  14:9

2. 14 to 9

3. 14/9

Step-by-step explanation:

An _____ is a single outcome or group of outcomes.

a.) event
b.) probability
c.) sample
d.) None of these

Answers

Answer:

D

Step-by-step explanation:

The article "an" can only be used with the word "event" so that automatically takes the choices b and c out of the way. An event is something that happens and causes the outcome, it is not the outcome, so it is not A. Thus, the answer is D

What is the slope of the line m?

Answers

Answer:

I think the answer us-1/2

Plz help

Hhhhhhhheeeeeeeeellllllllllppppppppp

Answers

Answer:

Step-by-step explanation:

1kg = 1000g

3000g [divide by 1000 to get answer in kg]

3kg = D

Help ASAP pls im giving away all of my points!!
Do you think you would have liked to have been a participant in Biosphere 2? Why or why not?

Answers

Answer:

NO. It sounds terrifying, and nearly deadly with the lack of oxygen..all the pollution from things like cars and factories, the littering, the deforestation, the animals that are either endangered or extinct.

Step-by-step explanation:

A frustum of height 4 is part of a larger pyramid of height 6. What is the ratio of the volume of the frustum to the volume of the pyramid?

Answers

Answer:

26 : 27

Step-by-step explanation:

The volume of the pyramid with height of 6:

V = 1/3bh = 1/3b*6 = 2b,b is area of the base

The volume of the smaller pyramid is:

V₁ = 1/3*b₁h₁

We know:

h₁ = 6 - 4 = 2h₁/h = 2/6 = 1/3

The base sides have same ratio as similar triangles.

b₁ = (1/3)²b= b/9

The volume of smaller pyramid:

V₁ = 1/3*2*b/9 = 2b/27

The difference of the volumes is the volume of the frustum:

V₂ = V - V₁V₂ = 2b - 2b/27 = 52b/27

The ratio of V₂ to V is:

52b/27 ÷ 2b = 26/27

Which statement correctly compares the spreads of the distribution

Answers

Answer:

From what I remember A is the answer but im  not sure.

Answer:b

Step-by-step explanation:t

If C is the incenter of ∆AMD, m∠A M C = 3 x + 6 and m∠ DMC= 8 x − 49.


find ∠ M A D , find m∠ADM and find m∠ADC

Answers

Answer:

3x+6=8x-49,

-6. -6

__________

3x=8x-55

-8x. -8x

________

-5x=-55

x=11,

3(11)+6=39

8(11)-49=39

Step-by-step explanation:

what is 2/5 x 5/6
i need the answer in 3 minutes

Answers

1/3

...............

.

...........

Answer:

1/3

Step-by-step explanation:

Determine the length of DE.

Answers

It is 5 ! :) because since the triangle ABC = DEF The measurements will be the same. The formula for finding the DC (hypothenuse) is a squared + b squared = c squared


Plug it in-
3*3=9
4*4=16
9 + 16 =25
Find the square root of 25 which brings the answer to 5 :)

The three most commonly used graphs in research are the histogram, the __________, and the cumulative frequency graph (ogive)

Answers

Answer:

The four most common are probably line graphs, bar graphs and histograms, pie charts, and Cartesian graphs.


If the circumference of a circle measures 3/2TT cm, what is the area of the circle in terms of TT?
A. 3/4 tt cm2
B. 9/2 tt cm2
C. 9/4 tt cm2
D. 9/16 tt cm2

Answers

Answer:

A = pi 9/16  cm^2

Step-by-step explanation:

The circumference is 3/2 pi

The circumference is given by

C = 2 * pi *r

3/2 pi = 2 * pi *r

Divide each side by 2 *pi

3/2 pi / 2 pi  = 2 pi r /2pi

3/4 cm = r

Now we can find the area

A = pi r^2

A = pi ( 3/4) ^2

A = pi 9/16  cm^2

Answer:

d) 9/16π cm²

Step-by-step explanation:

Circumference = 3/2π cm

diameter = 3/2 cm

radius = 3/2 ÷ 2 = 3/4 cm

area = π(3/4)² = 9/16 π cm²

What is the measure of the third angle in the yellow​ triangle?

Answers

Answer:

54

Step-by-step explanation:

66+60=126

180-126=54

Jackie correctly solved this equation:




Which statement describes the solutions she found?


A.

She found one valid solution and no extraneous solutions.

B.

She found two valid solutions and no extraneous solutions.

C.

She found one valid solution and one extraneous solution.

D.

She found no valid solutions and two extraneous solutions.

Answers

Equation:

(4/(x-2))+(1/((x^2)-4))=(1/(x+2)

Answer:

A: She found one valid solution and no extraneous solutions.

Step-by-step explanation:

When solving you get x= -(11/3)

8) How many terms of the arithmetic sequence (2, 4, 6, 8, ...} will give a sum of 600?

PLZ ANSWER

Answers

Answer:

I believe the answer is 300

Step-by-step explanation:

How many more people studied for 0-30 minutes than people who studied for 121-150 minutes?

Answers

Answer:

5 more people studied more in 0-30 minutes than people who studied 121-120 minutes.

Step-by-step explanation:

five more people studied for 30 minutes then 121 minutes

x over 8 = 10?
i just need to solve for x

Answers

X =80 you just have to multiply 8x10

Can you simplify five and 26/24

Answers

Answer:

6 and 1/2

Step-by-step explanation:

Insert one term between -13 and -119 to create an arithmetic sequence of three terms.

Answers

Answer:

-66

Step-by-step explanation:

- 13, ____, -119

first, find the common difference:

-13 - (-119) = 106

next, divide 106 by 2: [tex]\frac{106}{2}[/tex] = 53

so, the common difference is 53.

now, subtract 53 from -13:

-13 - 53 = -66

Answer:

-66

Step-by-step explanation:

the sequence goes -13,-66,-119

just subtract with 53

(decreasing arithmetic sequence)

Which shoe size is the mode?

Answers

Answer:

6

Step-by-step explanation:

the table below shows' different possibilities for the number of games a team would need to win to maintain a certain percentage of wins. Which ratio of games won to the number of games played could also be included in this table?

Answers

Answer:

C

Step-by-step explanation:

I saw em in other ones

Write the decimal .0006 as a fraction

Answers

Answer:

6/1000

Step-by-step explanation:

.0006 times 10,000

An arctic cold front is moving through an area. It is 37F when the temperature begins to drop. The scatter plot suggests a linear relationship between the temperature and the number of hours since the cold front arrived. Use the scatter plot to answer parts ac.

Answers

Answer:  The slope describes the change in temperature for every hour after the cold front arrives.

Step-by-step explanation:

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