my equation is f(x)= x^2-16x-100 and i am using the complete the box method im really stuck

Answers

Answer 1

Answer:

x2-16x+100=0  

Two solutions were found :

x =(16-√-144)/2=8-6i= 8.0000-6.0000i

x =(16+√-144)/2=8+6i= 8.0000+6.0000i

Step by step solution :

Step  1  :

Trying to factor by splitting the middle term

1.1     Factoring  x2-16x+100  

The first term is,  x2  its coefficient is  1 .

The middle term is,  -16x  its coefficient is  -16 .

The last term, "the constant", is  +100  

Step-1 : Multiply the coefficient of the first term by the constant   1 • 100 = 100  

Step-2 : Find two factors of  100  whose sum equals the coefficient of the middle term, which is   -16 .

     -100    +    -1    =    -101  

     -50    +    -2    =    -52  

     -25    +    -4    =    -29  

     -20    +    -5    =    -25  

     -10    +    -10    =    -20  

     -5    +    -20    =    -25  

For tidiness, printing of 12 lines which failed to find two such factors, was suppressed

Observation : No two such factors can be found !!

Conclusion : Trinomial can not be factored

Equation at the end of step  1  :

 x2 - 16x + 100  = 0  

Step  2  :

Parabola, Finding the Vertex :

2.1      Find the Vertex of   y = x2-16x+100

Parabolas have a highest or a lowest point called the Vertex .   Our parabola opens up and accordingly has a lowest point (AKA absolute minimum) .   We know this even before plotting  "y"  because the coefficient of the first term, 1 , is positive (greater than zero).  

Each parabola has a vertical line of symmetry that passes through its vertex. Because of this symmetry, the line of symmetry would, for example, pass through the midpoint of the two  x -intercepts (roots or solutions) of the parabola. That is, if the parabola has indeed two real solutions.  

Parabolas can model many real life situations, such as the height above ground, of an object thrown upward, after some period of time. The vertex of the parabola can provide us with information, such as the maximum height that object, thrown upwards, can reach. For this reason we want to be able to find the coordinates of the vertex.  

For any parabola,Ax2+Bx+C,the  x -coordinate of the vertex is given by  -B/(2A) . In our case the  x  coordinate is   8.0000  

Plugging into the parabola formula   8.0000  for  x  we can calculate the  y -coordinate :  

 y = 1.0 * 8.00 * 8.00 - 16.0 * 8.00 + 100.0

or   y = 36.000

Parabola, Graphing Vertex and X-Intercepts :

Root plot for :  y = x2-16x+100

Axis of Symmetry (dashed)  {x}={ 8.00}  

Vertex at  {x,y} = { 8.00,36.00}  

Function has no real roots

Solve Quadratic Equation by Completing The Square

2.2     Solving   x2-16x+100 = 0 by Completing The Square .

Subtract  100  from both side of the equation :

  x2-16x = -100

Now the clever bit: Take the coefficient of  x , which is  16 , divide by two, giving  8 , and finally square it giving  64  

Add  64  to both sides of the equation :

 On the right hand side we have :

  -100  +  64    or,  (-100/1)+(64/1)  

 The common denominator of the two fractions is  1   Adding  (-100/1)+(64/1)  gives  -36/1  

 So adding to both sides we finally get :

  x2-16x+64 = -36

Adding  64  has completed the left hand side into a perfect square :

  x2-16x+64  =

  (x-8) • (x-8)  =

 (x-8)2

Things which are equal to the same thing are also equal to one another. Since

  x2-16x+64 = -36 and

  x2-16x+64 = (x-8)2

then, according to the law of transitivity,

  (x-8)2 = -36

We'll refer to this Equation as  Eq. #2.2.1  

The Square Root Principle says that When two things are equal, their square roots are equal.

Note that the square root of

  (x-8)2   is

  (x-8)2/2 =

 (x-8)1 =

  x-8

Now, applying the Square Root Principle to  Eq. #2.2.1  we get:

  x-8 = √ -36

Add  8  to both sides to obtain:

  x = 8 + √ -36

In Math,  i  is called the imaginary unit. It satisfies   i2  =-1. Both   i   and   -i   are the square roots of   -1  

Since a square root has two values, one positive and the other negative

  x2 - 16x + 100 = 0

  has two solutions:

 x = 8 + √ 36 •  i  

  or

 x = 8 - √ 36 •  i  

Solve Quadratic Equation using the Quadratic Formula

2.3     Solving    x2-16x+100 = 0 by the Quadratic Formula .

According to the Quadratic Formula,  x  , the solution for   Ax2+Bx+C  = 0  , where  A, B  and  C  are numbers, often called coefficients, is given by :

                                     

           - B  ±  √ B2-4AC

 x =   ————————

                     2A

 In our case,  A   =     1

                     B   =   -16

                     C   =  100

Accordingly,  B2  -  4AC   =

                    256 - 400 =

                    -144

Applying the quadratic formula :

              16 ± √ -144

  x  =    ——————

                     2

In the set of real numbers, negative numbers do not have square roots. A new set of numbers, called complex, was invented so that negative numbers would have a square root. These numbers are written  (a+b*i)  

Both   i   and   -i   are the square roots of minus 1

Accordingly,√ -144  =  

                   √ 144 • (-1)  =

                   √ 144  • √ -1   =

                   ±  √ 144  • i

Can  √ 144 be simplified ?

Yes!   The prime factorization of  144   is

  2•2•2•2•3•3  

To be able to remove something from under the radical, there have to be  2  instances of it (because we are taking a square i.e. second root).

√ 144   =  √ 2•2•2•2•3•3   =2•2•3•√ 1   =

               ±  12 • √ 1   =

               ±  12

So now we are looking at:

          x  =  ( 16 ± 12i ) / 2

Two imaginary solutions :

x =(16+√-144)/2=8+6i= 8.0000+6.0000i

 or:  

x =(16-√-144)/2=8-6i= 8.0000-6.0000i

Two solutions were found :

x =(16-√-144)/2=8-6i= 8.0000-6.0000i

x =(16+√-144)/2=8+6i= 8.0000+6.0000i

Step-by-step explanation:


Related Questions

Two adjacent angles form a complementary relationship. One angle is twelve more than twice the other angle. Draw a picture to represent the situation. Then solve for each unknown angle measure.

Answers

Answer:

The angles are 26 and 64

Step-by-step explanation:

When two angles are complementary, what this means is that the add up to 90 degrees

Now, let’s say one of the angles is x, the other angle is 12 more than twice it; mathematically that would be 2x + 12

Since they add up to be 90, we have

x + 2x + 12 = 90

3x + 12 = 90

3x = 90-12

3x = 78

x = 78/3

x = 26

The other angle is 2x + 12 = 2(26) + 12 = 52 + 12 = 64

Two adjacent angles form a complementary relationship. One angle is twelve more than twice the other angle than the value of that two complementary angles are [tex]26^\circ[/tex] and [tex]64^\circ[/tex].

Given :

Two adjacent angles form a complementary relationship.One angle is twelve more than twice the other angle.

The sum of two complementary angles is [tex]90^\circ[/tex]. Let one of the complementary angles be 'a' then the other complementary angle is (12 + 2a) according to the given data.

The mathematical expression of the sum of complimentary angles is:

a + (2a + 12) = [tex]90^\circ[/tex]

Now, open the parenthesis and further simplify the above ex[pression.

3a + 12 = 90

Subtract both sides by 12 in the above expression.

3a + 12 - 12 = 90 - 12

3a = 78

Now, divide both sides by 3 in the above expression.

a = [tex]26^\circ[/tex]

Now, the other complementary angle is (2(26) + 12 = [tex]64^\circ[/tex]).

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Challenger Elementary School has 800800 800 800 students. Every Wednesday, 12%12\% 12% 12, percent of the students stay after school for Chess Club. How many students attend Chess Club on Wednesdays?

Answers

Answer: 96 students

Step-by-step explanation:

Number of students in the school= 800

Percentage of students that stays after school for Chess = 12%

To get the number of students that attend Chess Club on Wednesdays, we multiply the percentage given by 800. This can be written as:

= 12% of 800

= 12/100 × 800

= 12 × 8

= 96 students

96 students attend Chess Club on Wednesdays.

Answer:

Step-by-step explanation:

We know that the entire school

(

100

%

)

(100%)left parenthesis, 100, percent, right parenthesis has

800

800800 students. We need to find out how many students are in Chess Club, which is

12

%

12%12, percent of the school.

Hint #2

We can first divide

800

800800 by

100

100100 to see that

8

88 students make up

1

%

1%1, percent of the school, then multiply by

12

1212 to see how many students make up

12

%

12%12, percent.

12

%

of the students

=

12

1

%

of the students

=

12

8

students

=

96

students

12%of the students

=12⋅1%of the students

=12⋅8students

=96students

Hint #3

96

9696 students attend Chess Club on Wednesdays.

Find the measure of an angle between 0 and 360 that is coterminal with an angle measuring -800

Answers

Answer

280

Step-by-step explanation:

Answer:

280 then 80

Step-by-step explanation:

right on edg2020

A basketball player made 63 out 100 attempted free throws.What percent of free throws did the player mark?

Answers

Answer:

63%

Step-by-step explanation:

Answer:

63% of the free throws.

Step-by-step explanation:

It is out of 100% so any percent from 100 is just the number in this case it would be 63 Free throws.


Evaluate
17.3
% of
45.94
km
Give your answer rounded to 2 DP.

Answers

Answer: 17.3% of 45.94 km is 7.95 km

Final answer:

To find 17.3% of 45.94 km, convert the percentage to a decimal and multiply by the value in kilometers. The calculation gives you 7.94742 km, which rounded to two decimal places is 7.95 km.

Explanation:

To evaluate 17.3% of 45.94 km, you need to convert the percentage to a decimal by dividing by 100 and then multiply by the value in kilometers.

Convert the percentage to a decimal: 17.3% ÷ 100 = 0.173.

Multiply the decimal by the value in kilometers: 0.173 × 45.94 km.

Perform the multiplication to find the answer.

0.173 × 45.94 km = 7.94742 km.

Now, round the answer to two decimal places:

7.94742 km rounded to two decimal places is 7.95 km.

the dimension of a rectangle piece of paper are 8.5 and 11 inches.veronicafolded the piece of paper along its diagonal.which measurement is closest to the lenght of the diagonal is inches?

Answers

Answer:

13.90 inches

Step-by-step explanation:

The sides of rectangle are 8.5 and 11 inches.

According to question diagonal needs to calculated.

The diagonal , and two sides of rectangle will forma a right angled triangle.

Right angle as it constitute a right angle of rectangle as well.

To understand more

construct a rectangle ABCD

then one of its diagonal will be AC if we take triangle ABC.

angle ABC will be right angled at B.

for triangle ABC . diagonal AC will be hypotenuse

So diagonal can be computed using Pythagoras theorem

which states that if a and b are two sides of  right angled triangle containing the right angle then hypotenuse is given by [tex]\sqrt{a^2+b^2}[/tex].

____________________________________________

In the problem

two sides are of length 8.5 and 11 inches

So, diagonal is hypotenuse which can be calculated by [tex]\sqrt{8.5^2+11^2}\\=>\sqrt{72.25+121}\\=>\sqrt{193.25}\\=>13.90[/tex]

thus length of diagonal is 13.90 inches.

The boxplot below shows salaries for Construction workers and Teachers.



20 25 30 35 40 45 50


Salary (thousands of $)


Teacher


Construction




If a person is making the maximum salary for a construction worker, they are making more than what percentage of Teachers?



They are making more than


% of Teachers.

Answers

The construction worker are making more than More than 75% of teachers.

What is box- plot?

A box plot is a graphical rendition of statistical data based on the minimum, first quartile, median, third quartile, and maximum.

Let us consider the construction workers  is 45000.

So 45,000 represent the third quarter which is 75% of the data.

So, the construction worker are making more than More than 75% of teachers.

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plz help will mark brainlest

Answers

Answer:

81pi meter squared

Answer:

81π m²

Step-by-step explanation:

Formula: C=2πr

The circumference of the column is 18π meters so therefore: 18π=2πr

Divide the both sides by 2π:

r= 9 meters

Now find the area:

Formula for Area: A=πr²

Therefore: A= π · 9² = 81π meters²

Which expression is equivalent to y•y•y•z•z•z•z?

Answers

Y^3•Z^4 would be an equivalent expression. I’m not sure what your options are though...
Answer:
(y^3)(z^4)
Because there are three y’s being multiplied by four z’s.

Given kite MNOP below, which of the following conjectures, concerning the diagonals of a kite, is most likely true?
(graph attached)

A. The diagonals of a kite bisect the angles.

B. The diagonals of a kite are perpendicular.

C. The diagonals of a kite are perpendicular bisectors of each other.

D. The diagonals of a kite form four congruent triangles.

Answers

Answer:

B

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

b

Which number is irrational?

Answers

Answer:

D. 4.12

Step-by-step explanation:

A irrational number can be a decimal, but can never be a fraction.

A property had been a rectangular 100-by-200-ft parcel. The new zoning map
changed the boundaries so that the property is now shaped like a parallelogram.
The landowner complained that this represents a loss of area. Do you agree? If
so, what is the loss in square feet?

Answers

Answer:

Yes there is a loss of area

The loss is 5,858 ft²

Step-by-step explanation:

Kindly find attached rough sketch of the problem for your reference.

This problem bothers on the mensuration of flat shapes, rectangle and parallelogram

Firstly let us calculate initial area of the map, the rectangle

Area = length x width

Area = 200*100

Area = 20,000ft²

Now let us calculate the area of the new zoning map, parallelogram

Area = Base x height

But from the sketch we can solve for the height Applying

SOH CAH TOA

Using SOH

Sinθ= opposite/hypotenuse

Sin θ= h/100

h= sinθ*100

h= sin(45)*100

h= 0.7071*100

h= 70.71ft

We can now solve for the area of the new zoning map

A= 200*70.71

A= 14142ft²

Loss in square feet is

Area of initial map - area of New map

= 20,000-14,142

= 5,858 ft²

What is -5d+(-6)u-3?

Answers

Answer:-5d-6u-3

Step-by-step explanation:

-5d+(-6)u-3

-5d-6u-3

Ryan has $0.75 worth of pennies and nickels. He has 3 more nickels than pennies. Determine the number of pennies and the number of nickels that Ryan has.

Answers

9514 1404 393

Answer:

10 pennies13 nickels

Step-by-step explanation:

Let n represent the number of nickels Ryan has. Then the number of pennies is n-3, and his coins have a value (in cents) of ...

  5n +1(n -3) = 75

  6n = 78 . . . . . . . . . collect terms, add 3

  n = 13 . . . . . . . . . .  number of nickels Ryan has

  n-3 = 10 . . . . . . . .  number of pennies Ryan has

Ryan has 10 pennies and 13 nickels.

Ryan has 10 pennies and 13 nickels.

What is Algebra?

Algebra is the part of mathematics that helps represent problems or situations in the form of mathematical expressions.

Given:

Ryan has $0.75 worth of pennies and nickels.

Let x be the number of nickels Ryan has.

So, the number of pennies be x-3,

Then,

 5x +1(x -3) = 75

 6x = 78

  x = 13

 and, x-3 = 10

Hence, Ryan has 10 pennies and 13 nickels.

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Jacques deposited $1,900 into an account that earns 4% interest compounded semiannually. After t years, Jacques has
$3,875.79 in the account. Assuming he made no additional deposits or withdrawals, how long was the money in the account?
Compound interest formula: V(t)= P 1-
t = years since initial deposit
n = number of times compounded per year
r= annual interest rate (as a decimal)
P = initial (principal) investment
VO) = value of investment after t years
2 years
9 years
18 years
36 years
Mark this and retum
Save and Exit
Nexs

Answers

Answer:

18 years

Step-by-step explanation:

Formula:   V(t) = P* (1 +  r/2)^(2t)

r = 4% = 0.04

P =$1,900

V(t) = $1,900 *(1 + 0.04/2)^ (2t)

V = 1900 *(1.02)^(2t)

$3,875.79  =  1900 * 1.02^2t

3875.79/1900 =  1.02^ (2t)

2.0398894736842  = 1.02 ^(2t)

ln 2.0398894736842 =  ln (1.02^(2t) )

ln 2.0398894736842 =  2*t*ln (1.02)

ln 2.0398894736842  /(2* ln (1.02)) =  t

0.71289562682179 / (2 * 0.0198   )  = t

18.00002 years  = t

Twelve of the 20 students in Ms. Sarno’s homeroom are female. Each month, Ms. Sarno randomly selects a student to act as “teacher’s helper.”

Which simulation best models the selection of female “teacher’s helpers” for January, February, March, and April?
A spinner, divided into 5 congruent sectors with three of the sectors representing female students, is spun 12 times.
A coin, with heads up representing female students, is flipped 4 times.
A bag of 15 marbles, with 9 marbles representing female students, has a marble drawn 4 times with replacement.
A number cube, with odd numbers representing female students, is rolled 12 times.

Answers

Answer:

the answerr is C

Step-by-step explanation:

If 1,500 students attend the high school, how many students get to school by bus or car?

375 students

750 students

975 students

525 students

Answers

Step-by-step explanation:

Simple

The percent of bus and car is 35

So 35% x 1500 = 525

Total bus and car students are 525

Esme earns a net salary of $2,400 per month. She already has a savings account that has $100 in it. After paying her expenses every month, she’ll be able to add $100 to her savings account. Esme also plans to purchase a car priced at $20,000 using a no-interest loan. She will make a $300 payment on the loan every month. In how many months will Esme have enough money saved to pay off her loan completely?

A. 44.45 months
B. 45.75 months
C. 47.75 months
D. 49.75 months
E. 50.45 months

Answers

Answer:

D. 49.75 months

Step-by-step explanation:

Esme earns a net salary of $2400 per month.

In her saving account she already have a balance of $100.

She saves $100 every month after her monthly expenses.

She plans to buy a car of $20000 using a no interest loan .

She usually make a $300 payment on the loan every month.

The number of months she will save enough money to pay off her loan completely can be calculated below.

let

x  = number of months

The amount she saved altogether every month is $300 + $100 = $400.

Recall she already has $100 in her account

Amount of loan to be repaid = 100 + 400x

20000 = 100 + 400x

20000 - 100 = 400x

19900 = 400x

divide both sides by 400

x = 19900/400

x = 49.75 months

Answer:

D.) 49.75 Months

Step-by-step explanation:

An internet company randomly selected 50 of its customers and asked them how many hours per week they use the internet. Of those surveyed, 28 use the internet more than 15 hours per week. Based on the data, if the company has 800 subscribers, how many use more than 15 hours per week?

Answers

Answer:

Number of person use more than 15 hours per week from 800 subscribers = 448

Step-by-step explanation:

Given:

Total number of sample = 50

Result = 28 Person use more than 15 hours per week

Find:

How many people use more than 15 hours per week

Computation:

⇒ Probability of Person use internet more than 15 hours per week = 28 / 50

⇒Probability of Person use internet more than 15 hours per week = 0.56

⇒Number of person use more than 15 hours per week from 800 subscribers = 800 × Probability of Person use internet more than 15 hours per week

⇒Number of person use more than 15 hours per week from 800 subscribers = 800 × 0.56

Number of person use more than 15 hours per week from 800 subscribers = 448

Answer:

448

Step-by-step explanation:

Since 28/50 customers use the internet more than 15 hours per week. 28/50 is our fraction. So we do 28/50x800 which gives you 448.

I need to know this plz and thank u

Answers

The third one :) I hope I did it right
The third option is correct. Hope this helps!

- 3/7 divided by 3/8 equals ? write answer is simplest form.

Answers

Answer:

-1 and 1/7

Step-by-step explanation:

i dont know how to explain it sorry

Answer:

- 8/7

Step-by-step explanation:

- 3/7 divided by 3/8

- 3/7 ÷ 3/8

- 3/7 × 8/3

- 24/21 = - 8/7

Thus, - 3/7 divided by 3/8 equals - 8/7

-TheUnknownScientist

The set of life spans of an appliance is normally distributed with a mean 48 and a standard deviation 8 months. What is the z-score of an appliance that stopped working at 64 months?

Answers

Answer:

2

Step-by-step explanation:

The value of z-score of an appliance that stopped working at 64 months is,

⇒ 2

What is Division method?

Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications.

For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.

Given that;

The set of life spans of an appliance is normally distributed with a mean 48 and a standard deviation 8 months.

We know that;

Z- score = (X - μ) / σ

Here, We have;

μ = 48

σ = 8 months

X = 64 months

Hence, We get;

z - score = (64 - 48) / 8

z - score = 16 / 2

z - score = 2

Thus, The value of z-score of an appliance that stopped working at 64 months is,

⇒ 2

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A store sells 5 T-shirts for $46.45. What is the unit cost per T-shirt?

Answers

Answer:$9.29

Step-by-step explanation:For unit rate finding the value of one is the objective. Easiest way to find it is by dividing the value (the amount of money being payed) by the amount beig sold ( the 5 shirts) so basically $46.45 ÷ 5

Answer:

9.25

Step-by-step explanation:

Find the volume. *
4) height = 9 ft; radius = 3 ft
Volume =

Answers

The answer is actually 254.34ft

Which ordered pair is a to the equation y=6x -2

Answers

Answer: choice D.  (5, 28)

====================================================

Explanation:

The idea is to plug in each pair of coordinates and see if you get a true equation. Choice A does not work because

y = 6x-2

20 = 6(6)-2 ... plugged in x = 6 and y = 20

20 = 36-2

20 = 34

we have a false equation. So this shows choice A does not work.

--------

However, choice D does work since...

y = 6x-2

28 = 6(5)-2 .... plug in (x,y) = (5,28)

28 = 30-2

28 = 28

Put another way, if we plugged x = 5 into the equation, then we'd get y = 28. Therefore, showing (5,28) is a point on the line y = 6x-2.

Final answer:

To find the ordered pair that satisfies the equation, substitute values for x and solve for y. The ordered pair for the equation y = 6x - 2 is (0, -2).

Explanation:

To find the ordered pair that satisfies the equation y = 6x - 2, we need to substitute different values for x and solve for y. Let's start by substituting x = 0. Plugging x = 0 into the equation, we get y = 6(0) - 2 = -2. So the ordered pair is (0, -2). Another way to find more ordered pairs is by using the slope-intercept form of the equation, y = mx + b, where m is the slope and b is the y-intercept. In this case, the slope is 6 and the y-intercept is -2.

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click the correct symbol 2,000 lb 1 T <, > , +

Answers

Answer:

>

Step-by-step explanation:

The correct symbol for the unit conversion is given by 2000 lb = 1 T

What is unit conversion?

In order to translate measurements of a particular amount between different units, a mathematical conversion factor is usually used. This modifies the measurement of the quantity without altering its effects.

The particular circumstances or the intended result control the conversion process. This may be governed by law, a contract, a list of technical specifications, or other publicly available standards.

A precise conversion from one system to another is necessary for some measures in order to maintain the precision of both the original measurement and the conversion.

Based on the connection between a particular pair of original units and a particular pair of target units, each conversion factor is chosen.

Given data ,

Let the symbol be represented as A

Now , the weight of the object is given by

Let the first weight be p = 2000 lb

Let the second weight be q = 1 Ton

And , from the unit conversion

2000 lb = 1 Ton

So , the value of q = p

Hence , the symbol is equal to and 2000 lb = 1 Ton

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How many solution does the equation 5x+8=2x-1 wil have.

Answers

Answer:

1 solution. Solution is -3.

Step-by-step explanation:

First subtract 8 from both sides. This gives you 5x=2x-9.

Then subtract 2x from both sides. This gives you 3x= -9

Next divide both sides by 3. This would give you that x = -3.

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Final answer:

The equation 5x + 8 = 2x - 1 is solved by isolating x to find that it has one solution, x = -3.

Explanation:

The equation 5x + 8 = 2x - 1 can be solved for x to determine how many solutions it has. To do this, we first rearrange the equation to bring all terms involving x on one side and the constants on the other. Subtract 2x from both sides to obtain 3x + 8 = -1. Next, subtract 8 from both sides to get 3x = -9. Finally, divide both sides by 3 to isolate x, which yields x = -3. Therefore, the equation has one solution: x = -3.

What is the measure of angle 4?

Answers

Answer:

45 degrees

Step-by-step explanation:

∠1 and ∠4 are on a straight line. Therefore, they are supplementary and add to 180 degrees.

∠1+∠4=180

We know that the m∠1 is 135 degrees. We can substitute 135 in for ∠1.

135+∠4=180

Now we have to solve for ∠4. To do this, we need to get ∠4 by itself. 135 is being added on to ∠4. To undo this, subtract 135 from both sides, because subtraction is the opposite of addition.

135-135+∠4=180-135

∠4=180-135

∠4=45

The measure of ∠4 is 45 degrees.

the product of twice a number and four. *

Answers

Answer: 20

Step-by-step explanation:

8 times 2 = 16

16 plus 4 = 20

Answer:

2x * 4

Step-by-step explanation:

Which equation has x = 4 as the solution? log Subscript 4 Baseline (3 x + 4) = 2 log Subscript 3 Baseline (2 x minus 5) = 2 log Subscript x Baseline 64 = 4 log Subscript x Baseline 16 = 4

Answers

Answer:

A. log Subscript 4 Baseline (3 x + 4) = 2

Step-by-step explanation:

I graphed it.

The equation [tex]\log_4(3x + 4) = 2[/tex] has a solution of x = 4

What is an equation?

An equation is an algebraic expression that is represented by the equality "=" sign

For an equation to have a solution of x = 4, the equation must be true at x = 4

From the options, we have:

[tex]\log_4(3x + 4) = 2[/tex]

Substitute 4 for x

[tex]\log_4(3*4 + 4) = 2[/tex]

[tex]\log_4(16) = 2[/tex]

Express 16 as 4^2

[tex]\log_4(4^2) = 2[/tex]

Apply the law of logarithm

[tex]2\log_4(4) = 2[/tex]

Apply the law of logarithm

[tex]2*1 = 2[/tex]

[tex]2= 2[/tex]

The value of x = 4 is true for [tex]\log_4(3x + 4) = 2[/tex].

Hence, the equation [tex]\log_4(3x + 4) = 2[/tex] has a solution of x = 4

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