Mathematics College

Which of the following equations has only one solution?
X( x - 1) = 9
x2 - 6x + 9 = 0
x2 = 9

Answers

Answer 1

Answer:

x^2 - 6x + 9

Step-by-step explanation:

x(x - 1) = 9

x^2 - x - 9 = 0

x = 3.54 or x = -2.54 (using quadratic formula)

x^2 - 6x + 9 = 0

(x-3)^2 = 0

x = 3

x^2 = 9

x = ±√3 (any positive number square rooted always have 2 answers)

Related Questions

how would i slove for x??

Answers

Answer:

x=12

Step-by-step explanation:

First you need to find the 3rd angle.

180-118=x

x=62

Once you have that 3rd angle, set all the inside angles equal to 180

4x-6+5x+16+62=180 ---> set to 180

9x+72=180 -->combine like terms

9x=108 --> subtract 72 from both sides

x=12 -->divide both sides by 9

A car salesperson earns a 5.8% commission on every car sold. How much commission will the salesperson earn on the sale of a $28,400 car? * PLZZ help!!

Answers

He would earn $1,647.20 in commissions. To calculate this: cost of car * commission rate = his commission. 28,400 * .058 = $1,647.20

1+1 i just need to get this to 20 character
+75 points if you get this right

Answers

Answer:

2 is the correct answer

Answer:

2 is the answer djeidiejdieoeoododos

Gabriela drank three fourths of her glass of milk and jenny drank six eighths of her glass of milk if the glasses were the same size did they drink the same amount ? Use cross multiplication to prove your answer

Answers

Answer:

just croos multi

Step-by-step explanation:

its very easy

3/4•6/8= 9/16. Explanation: first you multiply 3/4•6/8. You would need to cross off 6 and 4. The six should be a three and the four should be a two. The answer should be 9/16. I hope that this helps!

Nebi has already typed 250 words. He then starts a timer and finds that he types 150 words in 3 minutes. If nebi types at a constant rate, write a linear equation to represent the number of words w that nebi types m minutes after starting the timer

Answers

Answer:

[tex]w=250+50m[/tex]

Step-by-step explanation:

Number words Nebi has typed = 250

t = Duration of typing = 3 minutes

Number of words typed in 3 minutes = 150

Rate of typing in 3 minutes

[tex]\dfrac{150}{3}=50\ \text{words/minute}[/tex]

So the linear equation representing the situation would be

[tex]w=250+50m[/tex]

Where

w = Number of words

m = Number of minutes after starting the timer

The linear equation to represent the number of words w that nebi types m minutes after starting the timer is w = 250 + 50m

Given:

Words already typed = 250 words.

Words typed in 3 minutes = 150 words

Words typed per minute = 150 words / 3 minutes

= 50 words per minute

w = Total words typed

m = number of minutes

The equation:

Total words typed = Words already typed + (Words typed per minute × number of minutes )

w = 250 + (50 × m)

w = 250 + 50m

Therefore, linear equation to represent the number of words w that nebi types m minutes after starting the timer is w = 250 + 50m

Read more:

https://brainly.com/question/16450098

HELP!!


Given f(x)= x^2 -3 and g(x)= x+2/x , find (g-f)(4). Show all work.

Answers

Answer:

-8.5

Step-by-step explanation:

Given

f(x)= x^2 -3 and g(x)= x+2/x

To find

(g-f)(4)

Solution

(g-f)(4) = g(4) - f(4) =4+2/4 - (4² -3) =4 + 0.5 - 16 + 3 =-8.5

Need help on question 1,2 please please help please please help me please will mark the brainiest it’s due today please please help

Answers

For the top on you just multiple

Answers:

1. 750

2. 750 + 5*20 = 850

Pretty please help me!!!!!
What is the absolute value of the number indicated on the number line?

A. -1 3/7
B. 1 1/3
C. -1 1/3
D. 1 3/7

Answers

Answer:

1 and 1/3

Step-by-step explanation:

The absolute value means that you have a positive sign no matter what the value is. It is the distance in units from 0 on the number line to the point in question.

The number line is laid out in 1/6. Each tick is 1/6. Since the point is at 1 and 2/6, we have to reduce the fraction.  In 2/6 you can divide the bottom and top by 2 to reduce the fraction.

2 divided by 2 = 1

6 divided by 2 = 3

Therefore the 2/6 reduces to 1/3

You already know you had a 1, so you add 1/3 and it is 1 1/3.

Please help me as fast as you can please

Answers

Answer:

A B and D

Step-by-step explanation:

answers A B and E are correct because you started with 4500

hey guys what is this type of equation/ question called 1 < x < 30

Answers

Answer:

2,3,4,5,6,7,8,9,10,...29

Step-by-step explanation:

A gardener makes a flower bed the bed is 14 in diameter calculate the circumference

Answers

Answer:

[tex]C=43.96[/tex]

Step-by-step explanation:

Circumference Formula:

C=2πr

The radius is half of the diameter...

[tex]14/2=7[/tex]

Pi is [tex]3.14[/tex]...

[tex]C=2*3.14*7[/tex]

[tex]C=43.96[/tex]

Find the equation of the line use exact numbers. ​

Answers

Answer:

y = 2/3x+4

Step-by-step explanation:

The answer is y = 2/3x + 4

Can you please mark me as Brainliest

Why can prime number be a multiple of any other number except itself

Answers

Answer:

the factors of prime numbers are only 1 and itself

Answer:

A factor number can only be divided by itself or 1 meaning it cant be a factor anything more than that.

Step-by-step explanation:


What is 52% of 230?

Answers

Answer:

4

Step-by-step explanation:

Answer:

119.6

Step-by-step explanation:

52 × 230  over 100 = 119.6

At Nivea's Newsstand, 6 magazines cost $12.00. How many magazines could you buy with $16.00?

Answers

Answer:

You could by 8 magazines

Step-by-step explanation:

First, set up the equation 6/12=x/16

cross multiple to get 12x=96

divide both sides by 12 and x = 8

This is a fun, but simple unit rate problem! We are solving for x.

Divide 12 by 6 (cost is usually always first when dividing for unit rate). You’ll get 2.

That means, for every one magazine, it’s 2 dollars.

Now, divide 2 by 16.
Your answer should be 8!

You can purchase 8 magazines for $16 dollars!


A preschool class has 9 girls and 11 boys in
the class. What percent of the class are
girls?

Answers

Answer:

45%

Step-by-step explanation:

Add 9 and 11 to see how many students there are in all. The answer to this is 20.Divide 9 by 20. You get .45, which is equal to 45%.

plz help me
is 7/3 less than 6 ​

Answers

Answer:

yes

Step-by-step explanation:

I figured this out by determining how many times 3 fits into 7.

7/3 is equal to 2 and 1/3

2 1/3 < 6

Hope this helps <3

please give brainliest

If x=8, what is the value of x(19-x)?

Answers

Answer:

88

Step-by-step explanation:

we have value of x=8

x(19-x)

8(19-8)

8×11

88 ans

simplify 6³÷2³×9^-2​

Answers

answer is

0.33333333333

Hell and thanks please

Answers

Answer:

A

Step-by-step explanation:


c) Parbati buys a mobile for Rs 6,300 and sells it to Laxmi at 15% profit. How much
does Laxmi pay for it? ​

Answers

Answer:

Rs. 7245

Step-by-step explanation:

Given parameters:

Cost price  = Rs. 6300

Percentage profit  = 15%

Unknown:

Selling price = ?

Solution:

If profit is made on a trade, the selling price is higher than the cost price.

 Profit  = Selling price  - Cost price

To find the selling price simply;

  Selling price  =( 1 + [tex]\frac{15}{100}[/tex])  x cost price

  Selling price  = 1.15 x 6300  = Rs. 7245

Five juniors and four seniors have applied for two open student council positions. School administrators have decided to pick the two new members randomly. What is the probability that one junior and one senior are chosen for the two positions?a. 0.395 b. 0.444 c. 0.506 d. 0569 e. 0.722

Answers

Answer:

The probability that one junior and one senior are chosen for the two positions is 0.556.

Step-by-step explanation:

The information provided is as follows:

Five juniors and four seniors have applied for two open student council positions. School administrators have decided to pick the two new members randomly.

There are a total of 9 students who applied for the two open student council positions.

The total number of ways to select two students from 9 is: [tex]{9\choose 2}=\frac{9!}{(9-2)!}=36[/tex]

Compute the probability that one junior and one senior are chosen for the two positions as follows:

[tex]P(\text{1 Junior and 1 Senior})=\frac{5\times 4}{36}=0.556[/tex]

Thus, the probability that one junior and one senior are chosen for the two positions is 0.556.

Study circle C, where diameter TV bisects chord EF.
The diagram as described in the text.


If m∠EKT=(5x + 65)∘, what is the value of x?
Enter the correct value.

Answers

The answer to the question and value is 5

What percentage of the eggs hatched?

Answers

Answer:

Is there supposed to be a picture or what??

Step-by-step explanation:

The Shredder, Inc. produces two types of paper shredders, home and office. The office model requires 6 hours to assembly and 2 finishing work units for finishing work, the home model requires 4 hours to assemble and 12 finishing work units for finishing. The maximum number of assembly hours available is 96 per day, and the maximum number of finishing hours available is 96 per day.

Let
x = the number of office model shredders produced per day and
y = the number of home model shredders produced per day.

Write the system of inequalities that represents the maximum number of shredders that can be produced in one day.

NOTE: 4 inequalities are expected.

Answers

Answer:

4y + 6x ≤ 96

12y + 2x ≤ 96

Step-by-step explanation:

Paper shredders produced :

Home :

Assembling time = 4 hours

Finishing work unit = 12

Office :

Assembling time = 6 hours

Finishing work unit = 2

Maximum number of assembly hours = 96 / day

Maximum number of finishing hours = 96/ day

Let

x = the number of office model shredders produced per day and

y = the number of home model shredders produced per day

(office Assembly hours x Number of office model) + (Assembly hours * number home models)

OFFICE MODEL:

Assembly operation :

Home + office ≤ 96

4y + 6x ≤ 96

Finishing operation :

Home + office ≤ 96

12y + 2x ≤ 96

Four friends are going to split the cost of a pizza. If p stands for the cost of the pizza, which of the following expressions could represent what each friend will pay?

4p
p-4
p/4
p​

Answers

Answer:

p/4

Step-by-step explanation:

It is that because we are splitting, which is division.

So, P is the cost and 4 is how many

Simply, p/4

hope it helped!  

Answer:

p/4

Step-by-step explanation:

This is right on oddy, hope it helps!

Mackenzie sells shoes. She makes a 20% commission on all of her sales.
Write 20% as a fraction in simplest form.


Write 20% as a decimal.

Answers

Answer:

20% as a fraction is 20/100

20% as a decimal is 0.20

Step-by-step explanation:

Answer:

1/5 and 0.20

Step-by-step explanation:

20/100 = 10/50 = 2/10 = 1/5

20% is out of a 100, so move the decimal place of the 20 two times because 100 has 2 zeros.

0.20

Suppose a trapezoid with the vertices (3,-7) , ( 0,5 ) ,(2,5) , and (5,-7 ) was reflected across the x-axis. Which of these would be a vertex of the reflected figure

A. ( -7,5)
B (-3 ,7)
C (2,5)
D(3,-7)

Answers

It’s (-3,7)

Step by step explanation

I am not the best at explaining but he opposite of(3,-7) is (-3,7) the way I did it is way better than the explanation but it’s (-3,7)

the linear equation y=1/2x+1 is represented by the graphed line. A second linear equation is represented by the data in the table. X(-2,0,2,4) Y(7,6,5,4) .In which square is the solution located​

Answers

Answer:

Correct Answer is D

Step-by-step explanation:

Answer:

Yeah it's "D"

Step-by-step explanation:

Have a Jocular Day

Find Y (pic attached) (i’ll mark brainliest)

Answers

Answer:

4y - 4 = 60

4y = 64

Y = 16

Answer is B

I get 60 as it is a equilateral triangle.

Thank you and please rate me as brainliest as it will help me to level up

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