4. How do you solve x2 + 9x - 3 = 0 using the completing-the-square method?

Answers

Answer 1

Answer:

i used to have a problem with this

Step-by-step explanation:


Related Questions

the sixth one. thanks for all the help!

Answers

Answer: The answer is 8 because if you divide each total cost by it’s number of tickets, you will always get 8.

Answer:

sorry gchgfcghhhghhhj

State the slope and y-intercept of y=5x+2

Answers

Slope: 5
y-intercept: (0,2)

Answer:

5 is the slope

(0,2) is the y intercept

Step-by-step explanation:

The equation y = 5x + 2 appears to be written in the y = mx + b form of a linear equation.

m represents slope and b represents the y value of the y intercept.

Here, m = 5 and b = 2.

This means 5 is the slope and (0,2) is the y intercept.

What number makes the equation true? Enter the answer in the box.


÷3 = 6​

Answers

Answer:

18

Step-by-step explanation:

multiply 6 by 3

Hope this helps. Pls give brainliest.

An 8-Bar Package Of Soap Sells For $4 What Is The Unit Rate In Cost Per Bar?

Answers

Answer:

2 dollars

Step-by-step explanation:

If it’s an 8 pack, that is 4 dollars then if you divid, every bar should cost 2 dollars each.

Each package has 8 individual bars. The package costs 4$. That’s 4$ for 8 bars of soap. Divide by 4 and it’s 1$ for two bars of soap which means
.50 cents per bar of soap

12 gallons of gas cost $30. How much will it cost to get an additional 4 gallons of gas? ​

Answers

Answer:

the answer is 40

Step-by-step explanation:

52 degrees times x+56 time 78 degrees please help quickly WILL MARK BRAINLESS

Answers

Answer:

Com on grl i am textin u like crazy man

Step-by-step explanation:

What is an equation of the line that passes through the point (6, 1) and is
perpendicular to the line 2x + 3y = 18?

Answers

Answer: y=1,5x-8

Step-by-step explanation:

At first transform the equation

2x+3y=18

3y= 18-2x

y= 6 - (2/3)x

The linear function has general form, which looks like that:

y=mx+n

perpendicular means that m1*m2=-1

In our case m1= -(2/3) and m2 is unknown

(-2/3)*m2= -1

m2=3/2 so m2=1,5

The line has to go through the point (6,1)

so 1=6*1,5+n

1=9+n

n= -8

so the function looks like that y=1,5x-8

A pair of designer sneakers was purchased for $120. Since they were purchased, their price has increased by 15%. Write an equation that can help you find the new price. What is the new price?

Answers

Answer:

$138

Step-by-step explanation:

The price increased by $18

1) 12/10-2/10 =
2) 18/6- 24/12=
3) 3/5 - 1/10=
4) 1/3 - 1/12=

Answers

Answer:

1: 1

2: 1

3:2/5

4:1/4

Triangular numbers can be represented with equilateral triangles formed by dots the first fire triangle numbers are 1 3 6 10 and 15 is there a direct variation between a triangle number and its position in the sequence explain your reasoning

Answers

Answer:

There's no direct variation

Step-by-step explanation:

Required

Determine if there's a direct variation between the number and its position

I'll start by giving an illustration of how the triangle is represented using stars (*)

*

**

***

****

*****

Represent the line number with y and it's position with x

On line 1:

y = 1, x = 1

On line 2:

y = 2, x = 3

On line 3:

y = 3, x = 6

On line 4:

y = 4, x = 10

On line 5:

y = 5, x = 15

Note that, x is gotten by calculating the accumulated number of stars while y is the line number.

Direct variation is represented by

y = kx

Or

kx = y

Where k is the constant of variation

For line 1:

Substitute 1 for y and 1 for x

k * 1 = 1

k = 1

For line 2:

Substitute 2 for y and 3 for x

k * 3 = 2

Divide through by 3

k = ⅔

Note that the values of k in both computations differ.

This implies that there's no direct variation and there's no need to check further.

Answer:
No, the triangular numbers are not a direct variation. There is not a constant of variation between a number and it's position in the sequence. The ratios of the numbers to their positions are not equal. Also, the points (1, 1), (2, 3), (3, 6), and so on, do not lie on a line.

Step-by-step explanation:

A couple plans to have 3 children. Assuming the probability of having either a boy or a girl is 50%, what is the probability they will have at least 1 girl?
Group of answer choices

0.875

0.125

0.375

0.75

Answers

Answer:

0.375

Step-by-step explanation:

The probability of having at least one girl out of 3 children can be calculated as;

P(1 girl, 2 boys) or P(2 girls, 1 boy) or P(3 girls)

Since the P(b) = P(g) = 1/2

Then the probability at any point in time is 1/2 * 1/2 * 1/2 = 1/8

So we have ;

1/8 + 1/8 + 1/8 = 3/8 = 0.375

Which product is equivalent to -7 × 2/5?

Answers

Answer:

-2.8 or -14/5

Step-by-step explanation:

All you have to do is put the -7 over 1 and multiply across. So it'd look like:

-7/1 x 2/5 which works out across as -14/5 or you can convert it to a decimal to be -2.8. Hope this helps! :)

Please I rlly need this help!

Use operations of decimal, fraction, and percent numbers to model the following scenarios. In your final answer, include only an equation or proportion modeling the scenario. Do not solve the problems.

1 A family dines in a popular franchise restaurant. At the end of the meal, they decide to leave their server a monetary tip that is equal to 20% of the total bill amount, $60.50. How much will the family leave their server as a tip?

2 A family dines in a popular franchise restaurant. They plan to use a coupon that will give them a discount of 15% off of their total dinner bill, not including applicable sales tax or their server’s tip. If the family’s dinner bill totaled $34.00 before tax and tip, how much money will they save by using the coupon?

3 A family dines in a popular franchise restaurant. They plan to use a coupon that will give them a discount of 10% off of their total dinner bill, not including applicable sales tax or their server’s tip. The bill totals $157.30 before tax and tip. What is the new total after the server applies the 10% off coupon?

4 A family of eight dines in a popular franchise restaurant. The restaurant has a policy of automatically including a standard tip to the final bill for parties larger than six people. The bill for the meal included a total of $58.25 in food and beverage sales, plus a standard tip of $10.49. What percent of the food and beverage sales does the restaurant consider to be a standard tip for parties larger than six?

5 A family dines in a popular franchise restaurant that has a policy of automatically including a 20% tip on all food and beverage sales before coupon discounts are applied. What is the family’s total bill amount if their food and beverages totaled $94.20 and they used a 15% off coupon? (HINT: Create more than one model.)

Answers

Answer:

more details about this?

Step-by-step explanation:

Plz wait I had theses questions before I’m gonna to comment the answer wait plz I need to find it!

Please help me out!! :c
Katie has f fish. Alejandro has 11 fish, which is 3 fewer than twice the number Katie has.

Which equation shows an equality between two different ways of expressing how many fish Alejandro has?
A. f + 3 = 11
B. f – 3 = 11
C. f/2 - 3 = 11
D. 2f – 3 = 11

Answers

Answer:

The answer would be D

Step-by-step explanation:

To find how many Katie has, you would have to double it ( times by 2 ). Then subtract 3, since Alejandro has three less than twice as many as Katie.

Answer:

the answer is d just did the test got it right

Step-by-step explanation:

Michael record the number of miles he runs each week for the nine weeks 6,11,13,8,15,9,11,5,9 which box plot represents the data

Answers

Answer: Upper right corner

Five number summary

min = 5Q1 = 7median = 9Q3 = 12max = 15

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

Explanation:

The given list of values is {6, 11, 13, 8, 15, 9, 11, 5, 9}

It sorts to {5, 6, 8, 9, 9, 11, 11, 13, 15}

The middle most value is the second 9. We have four items below or at the median {5,6,8,9} and four values above the median {11,11,13,15}

The middle item of {5,6,8,9} is (6+8)/2 = 14/2 = 7. This is the value of Q1.

The middle item of {11,11,13,15} is (11+13)/2 = 24/2 = 12. This is Q3.

The min is 5 since it is the smallest of the original list.

The max is 15 because it is the largest of the original list.

The five number summary is

min = 5Q1 = 7median = 9Q3 = 12max = 15

The boxplot that matches with this five number summary is the boxplot in the upper right corner.

The min is the left whisker. The max is the right whisker.

The left edge of the box is Q1. The right edge of the box is Q3.

The middle vertical line inside the box is the median.

Answer:

upper right corner

Step-by-step explanation:

Round the following numbers to 1 decimal place.

a) 65.874

b) 326.59

c) 13.555

d) 7.959

Answers

Answer:

a)65.9

b)326.6

c)13.6

d)8.0

Answer:

a)65.9

b)326.6

c)13.6

d)8.0

I need help with this question can someone please help me?

Answers

Answer: y= -1/1x - 1

Okay, to find the equation you must find the y-intercept and the slope.

To find the y-intercept, you must find (0,y). This is the point on the y-axis where x is 0. So, where along the y-axis is there a point? There is a point at (0,-1). Therefore, your y-intercept is -1.

To find the slope, you must do rise/run. Go to a point on the line, such as (0,-1). You must go up (or down) until you get lined up with next point on the line. You go up one time. Then, you must go right (or left) to get to the exact point. In this case, the point would be (-1,0). You go left one time.

If you go down or left when doing rise/run, the number would be negative. Since you went left, that number would be negative.

So, our slope would be 1/-1, which can also be written as -1/1.

Now, write the equation. There is always an x next to the slope. y= -1/1x

Then, put the y-intercept next to it. If it is positive, use a +. If it is negative, use a -. It is negative.

Therefore, the answer is y= -1/1x -1.

divisibilty by 2 5 and 10​

Answers

Step-by-step explanation:

if the number ends in a 0,it is divisible by 10.Also if number and s divisible by 2 and 5 it is divisible by 10

On average, Americans consume 13.9 pounds of ice cream per person over an entire year. Ben loves ice cream, but limits himself to one 6 ounce (oz) serving each week. Find the difference between the amount of ice cream that Ben consumes compared to the national average.

Answers

Answer:

5.6 pounds

Step-by-step explanation:

13.9 pounds of ice cream are consumed per year by individual.

Ben consumes 6 ounce serving per week.

The amount of ice cream consumed by Ben in a year can be determined by;

since there is an average of 52 weeks in a year, then;

6 ounces x 52 = 312 ounces

But,

1 ounce = 0.0625 pounds

So that,

312 ounces = x pounds

x = 312 x 0.0625

  = 19.5

x = 19.5 pounds

Thus, Ben consumes 19.5 pounds of ice cream per year. He consumes more than the average value per person in a year.

The difference = Amount Ben consumes - National average

                        = 19.5 - 13.9

                        = 5.6 pounds

The point (5, 5) is in Quadrant.

The point (3, –2) is in Quadrant.

The point (–4, –4) is in Quadrant.

Answers

Answer:

A coordinate plane.

The point (5, 5) is in Quadrant  

✔ I

.

The point (3, –2) is in Quadrant  

✔ IV

.

The point (–4, –4) is in Quadrant  

✔ III

.

Step-by-step explanation:

give me branliest pls

The point (5, 5) is in Quadrant I, the point (3, –2) is in Quadrant IV, and the point (–4, –4) is in Quadrant III.

What is an ordered double?

It is defined as a representation of coordinates in a two-dimensional coordinate plane. It has a list of two elements in it, such as (x, y).

The area using the ordered double:

[tex]\rm Area = |\dfrac{(x_1y_2-y_1x_2)+(x_2y_3-y_2x_3)....+(x_ny_1-y_nx_1)}{2}|[/tex]

As we know the coordinate plane is divided into four parts.

The first part is known as I quadrant; in this quadrant both values of x and y are positive.

In the second quadrant II value of x is negative and the value of y is positive.

In the third quadrant III values of x and y are negative.

In the fourth quadrant IV value of x is positive and the value of y is negative.

From the above information:

The point (5, 5) is in Quadrant I

The point (3, –2) is in Quadrant IV

The point (–4, –4) is in Quadrant III

Thus, the point (5, 5) is in Quadrant I, the point (3, –2) is in Quadrant IV, and the point (–4, –4) is in Quadrant III.

Learn more about the order double here:

brainly.com/question/10757890

#SPJ5

Point A is located at -4.5, and point B is 3.25 units from point A. Write two additional equations that could be used to determine the location of point B.

Answers

Answer:

The equations are B = -4.5 + 3.25 and B = -4.5 - 3.25

Step-by-step explanation:

Since point A is located at -4.5 and point B is 3.25 units away from A, point B can either be located on the left or on the right of point A.

If point B is located at the right of A, the equation for point B is -4.5 + 3.25.

If point B is located at the left of A, the equation for point B is -4.5 - 3.25.

So, the equations are B = -4.5 + 3.25 and B = -4.5 - 3.25

3) A product is marked down 15%; the sale price is $127.46. What was the
original price?

Answers

Answer:elling price (S.P)  =  (100 - m)% ⋅ Original price -----(1)

Here,  

S.P  =  127.46,  m  =  15

Substitute 127.46 for S.P and 15 for m in (1).

127.46  =  (100 - 15)% ⋅ Original price

127.46  =  85% ⋅ Original price

127.46  =  0.85 ⋅ Original price

127.46 / 0.85  =  Original price

149.95  =  Original price

So, the original price is $ 149.95.

Step-by-step explanation:

The original price of product when the product is market down by 15% and the sales price is given so it is $149.95.

Calculation of price:

Price is down by 15%, so m = 15% or 0.15.

So, Original price = [tex]\frac{Selling price}{( 1 - m)}[/tex]

By putting the value, we get

Original price = [tex]\frac{127.46}{(1 - 0.15)}[/tex]

= [tex]\frac{127.46}{0.85}[/tex]

= $149.95

Hence the original price of of the product was $149.95

Learn more about sale here : brainly.com/question/24321449

The expected values of two television sets are predicted as follows.
The function below models the expected value in dollars, of television A after 3 years.
f(x) = 100(-2+4)
The expected value, in dollars, of television B is initially $360 and decreases by $90 each year. Let g(x) represent the
expected value of television B after 3 years.
How does the graph of g(x) compare to the graph of f(x)?
The graph of g(x) has the lesser y-intercept.
The graph of g(x) has the greater 2-intercept.
The graph of g(x) has the greater y -intercept.
o The graph of g(x) has the lesser x-intercept.

Answers

Answer:

A. The graph of g (x) has the lesser y -intercept

Step-by-step explanation:

I took the test

For f(x) the y-intercept is given by, c = 400 and for g(x) the y-intercept is given by, c' = 360. The correct option is a) and this can be determined by using the slope-intercept form of the line.

Given :

The function [f(x) = 100(-x + 4)] models the expected value in dollars, of television A after 3 years.The expected value, in dollars, of television B, is initially $360 and decreases by $90 each year.

First, determine the function g(x) in order to comment on the graph of g(x). So, according to the given data the expected value, in dollars, of television B is initially $360 and decreases by $90 each year.

Let the total number of years be 'x'. Then the function g(x) is given by:

g(x) = 90x + 360

Now, compare the functions f(x) and g(x) with the slope-intercept form of the line in order to find the y-intercept.

For f(x) the y-intercept is given by, c = 400

For g(x) the y-intercept is given by, c' = 360

Therefore, the correct option is a) The graph of g(x) has the lesser y-intercept.

For more information, refer to the link given below:

https://brainly.com/question/11528842

please help me!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

dm me for help

Step-by-step explanation:

The teacher said we could estimate but give a good reason for that estimate​

Answers

Answer:

$11, even if you do work a job thats not that hard you should still be making a good amount of money

Step-by-step explanation:

I just used my opinion

HELP ILL GIVE 10 PTS quick pleaseee

Answers

Answer: I’m pretty sure it’s the 4th one.

Step-by-step explanation: because 1 and 2 have infinity solutions but 3 has no solution 4 comes up with x=-11

Can you give brainiest? :)

Can someone help me ?

Answers

Using points: (4,4) and (6,5)

(5-4) / (6-4) = 1/2

Slope intercept is at y=2

y=1/2x+2

one man have 20 oranges in one hod and the get 20 children in the road and he gave 1 orange fore each of them but there is still an orange left in the hod how ?​

Answers

Step-by-step explanation:

19 kids get an apple each, the 20th kid gets the basket with the apple in it, that’s the answer you want, right?

Well that’s a bogus answer, because how come one kid gets a free basket, and why do you even care that the basket has an apple in it if you don’t get to keep it anyway?

Plus it’s not “all the apples to each one of them” is it? No, it’s one apple each, and different apples are different sizes and degrees of ripeness and maybe some have bruises and it’s just inherently unfair.

Instead, I take 19 apples, and I make applesauce, and I distribute the applesauce using a precision scale so every child gets an exactly equal amount of applesauce, and I keep one apple in the basket, which I keep.

Now, of course it’s not quite “ALL the apples” to the children, but you cannot have your cake and eat it too. I gave an equal amount of apple to each child, and if it was 5% short of all the apples, well, it was, but what of it, that’s the best I can do and still keep one apple in the basket.

Because I am NOT giving one child the basket and having the other nineteen kids complaining about why Johnny got a basket and they didn’t, plus where’s my basket? No, I don’t think so.

Answer:

Give 19 children an orange each = 19 oranges given.

Leave one orange in the basket and give the basket containing that orange to the lucky 20th child.

20 Kids, 20 oranges — Case closed

Step-by-step explanation:

(Ans: 500)
4) The minimum charge of telephone calls up to 175 calls is Rs. 200 the charge for each
extra call of 2 minutes duration is Rs. 1. If a man paid Rs. 870.10 with 10% T.S.C and 13%
VAT for Rs telephone bill, find the number of extra calls made.
5) The distance between kalanki and Thamel is 5.4 Km. the minimum fare is Rs. 221 at the
first and the fare goes on at the rate of Rs. 11.10 per 200 meters. Find the taxi fare
between Kalanki and Thamel. (Ans Rs. 320.70)
6) Mr. Gopal hired a taxi and travelled a certain distance at 10:30pm he paid the total fare
of Rs. 345 including the additional waiting charge for 10 minutes. If the minimum fare is
RS. 21, the fare per 200m is a Rs 10.80 and the waiting charge is Rs. 10.80 per 2 minutes
find the distance travelled by him. (Ans: 5Km)
Algebraic Expression and simplification
Solved examples:
1. A) Factorize : a) 2 + 10 +
a
Sol" here,
+ 10 +
62
a?
21b2
21b2
a2
21b2
a2
7 ab
3 ab​

Answers

Answer:

bvyf0x9yoyx0xypypp0y0yyx0p60py0ypypppypyppyppypypppppppypp9ic attach xoxixizoxihixziicusfyfugdg lvl knockoff works

ok i need yall help please
15=x+23-2x

Answers

X = 8 and yeah that’s all
Other Questions
3Select the correct texts in the passage.Which two details best develop the author's claim that the new spacesuit allowed astraunats to move around more easily?Suited for Spacewalksadapted from NASAFollowing Gemini, the Apollo program added a new dimension in spacesuit design because actual spacewalks, on the surface of the Moon, were now to CCCtime. As with Mercury and Gemini space garments, Apollo suits had to serve as a backup pressure system to the space capsule. Besides allowing flexibility in tiand arm areas, they also had to permit movements of the legs and waist.Astronauts needed to be able to bend and stoop to pick up samples on the Moon. Suits had to function both in microgravity and in the one-sixth gravny of thsurface. Furthermore, when walking on the Moon, Apollo astronauts needed the flexibility to roam freely without dragging a cumbersome combination oxygetether. A self-contained portable life-support system was needed.The Apollo spacesuit began with a garment that used water as a coolant. The garment, similar to long johns but laced with a network of thin walled plasticcirculated cooling water around the astronaut to prevent overheating. A multi-layered pressure garment was worn on top of the cooling suit. The innermost lagarment was a comfort layer of lightweight nylon with fabric ventilation ducts. On top of this was a layer of neoprene-coated nylon surrounded by a nylon restThis layer contained the pressure inside the suit. Improved mobility was achieved by bellow-like joints of formed rubber with built-in restraint cables at the washoulders, wrist, knees, and ankles. On top of the pressure layer were five layers of aluminized Mylar for heat protection, mixed with four spacing layers of no What kind of tone do people usually expect a news article to have?humorousobjectiveemotionalbiased Help plz:))) Ill mark u brainliest ASAP 10 I am thinking of 2 consecutive odd numbers. If I add 15 to the second, I get twice the first. What is the sum of the num compare and contrast the way plant and animal cells are protected from their environment (TCOE) When a customer purchases software that displays a clickwrap agreement at the time of installation, the consumer has already purchased the product and is being asked to consent to the contract that purportedly memorializes the payment. Is the contract formed at the moment of purchase or later, when the buyer assents to the terms of the clickwrap agreement? I need help with math first one get brainy Rewrite the following sentence with the adverbs in the appropriate place.plz help dont answer for point.report... Josh has 5 mini pizzas to share with 4 friends. Two have mushrooms, 2 have pepperoni and 1 is plain. Jazmine only eats plain pizza. Zack wont eat mushrooms or onions. Carley and Owen will eat pepperoni and mushrooms, but no onions. Josh will eat any kind of pizza. If Josh cuts each mini pizza in half, how should he divide up the halves so each person gets 2 halves each? How much pizza will be left? please help me plz :( List 3 things one can do to overcome the feeling ofshyness 21. Newton's first law of motion states that an object stays in constant motion unless a(n) ____ force acts on it. PLEASE ANSWER THESE QUESTIONS CORRECTLY! IF YOU DO, I WILL MARK YOU AS BRAINLIEST! PLS AND TY THIS IS SOOOOO CONFUSINGGGG TO ME! :D Imagine that you're a geographer who studies the Earth's physical features. You've noticed that there have been many volcanic eruptions in Indonesia in the last few years. Which of the following questions would a physical geographer ask about these eruptions?A. How have humans adapted to life around active volcanoes?B. Have ancient religions in Indonesia ever involved volcanoes?C. What can we learn about these volcanoes to find out why they are erupting?D. What do the people of Indonesia believe about these volcanoes? Suzanne will use orange and blue beads to make bracelets. She will use the same number of orange beads on each bracelet and the same number of blue beads on each bracelet. She has 72 orange beads and 78 blue beads. What is the greatest number of bracelets that she can make that will have the greatest number of orange beads and blue beads? Explain how you know. Make a Prediction: In the lab, you will test the response rate of yournervous system using auditory, visual, and tactile (touch) stimuli. Whichtype of stimuli do you think you will respond to faster? Hi, I can help students with Spanish homework or questions how to solve math percentage problems What plant cell absorbs water and minerals from soil How is coffee, Lemonade, Soda, Vinegar, Orange Juice an acid?