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

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? :)

Answer:

18

Step-by-step explanation:

multiply 6 by 3

Hope this helps. Pls give brainliest.

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

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.

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

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.

Five number summary

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

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

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:

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

Answer:

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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

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:

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

Answer:

1: 1

2: 1

3:2/5

4:1/4

Answer:

dm me for help

Step-by-step explanation:

Answer:

the answer is 40

Step-by-step explanation:

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 :

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

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

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

Answer:

more details about this?

Step-by-step explanation:

Answer:

$138

Step-by-step explanation:

The price increased by $18

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! :)

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.

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:

Answer:

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Answer:

Com on grl i am textin u like crazy man

Step-by-step explanation:

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

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.

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

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:

$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