Complete the square:
x2 - 6x + 9=-13+ blank

Complete The Square:x2 - 6x + 9=-13+ Blank

Answers

Answer 1

Answer:

to complete the square, you add (b/2)^2  on both side. in this case, b is -6, half of -6 is -3, -3 squared is 9, so:

x^2-6x+9=-13+9

(x-3)^2=-4

This quadratic equation have unreal solutions

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

To complete the square, divide the coefficient of x by 2.

6 /2 = 3

Take square of 3 and add to both sides

3*3 = 9

x² - 6x + 9 = -13 + 9

x² - 6x + 9 = -4

(x - 3)² = -4


Related Questions

Help me do this plzzz

Answers

that is so easy to do omg plss say me what is grade

The variables y and x have a proportional relationship, and y = 7 when x = 2.

What is the value of y when x = 5?

Answers

Answer:

35/2

Step-by-step explanation:

y ~ x

y=ky

7=2k

k=7/2

y=(7/2) × 5

y=35/2


What is 0.00000008 in scientific notation?

Answers

Answer:

The answer to this question is 8×10−8. I hope this helps you! :D

Answer:

8*10^-8

[tex]ie.8 \times {10}^{ - 8} [/tex]

Confused ;-; please help me

Answers

Answer:

1)sss

2)asa

3)sas

Step-by-step explanation:

hope this helps

3 On Monday, three hundred ninety-three students went on a trip to the zoo. All eight buses were
filled, and nine students had to travel in cars. How many students were in each bus?

Answers

Answer:

48

Step-by-step explanation:

First you would subtract 9 from 393 which is 384 then you would divide the 384 remaining student among the 8 busses which is 48.

Hope this helps.

The graph shows the number of servings in different amounts of frozen yogurt listed on a carton. Enter an equation that gives the number of servings y in x pints. Use only decimal form, if necessary.



The equation is y =

Answers

Answer:

y=2.5x

Step-by-step explanation:

We have been given a graph that shows numbers of servings (y) in different amounts (x) of frozen yogurt listed on a carton.

To write an equation that gives the number of servings y in x pints, we will have to find the slope (rate of change) of our given linear function.

Since we know that rate of change of a function can be found by vertical change of the function divided by horizontal change of the function.  

m= Slope (rate of change).

=Difference between two y-coordinates.

=Difference between corresponding x-coordinates of the y-coordinates.    

Upon substituting coordinates of two points (0,0) and (4,10) in slope formula we will get,  

The slope of our given line is 2.5.  

Now we will write equation of our given line is slope-intercept form. The equation of a line in slope-intercept form is: , where m=slope and b = y-intercept (initial value).

Upon substituting m=2.5 and coordinates of point (4,10) in slope-intercept form of equation we will get,

Upon substituting m=2.5 and b=0 in slope-intercept form of equation we will get,

Therefore, the equation  will give the number of servings y in x pints.

Solve the math problem

Answers

2 a. positive b. positive c. zero
3 a. positive- 3/2 slope b. negative -3/4

Answer:

Step-by-step explanation:

2a. Slope is positive

2b. Slope is negitive

2c. Slope is zero

3a. Slope is positive 1.

3b. Slope is [tex]\frac{-4}{3}[/tex]

Amelie has three dogs, Max, Jasmine, And Springer. She buys a bag of dog food that contains a special mix.

Each dog gets a different amount of the food based off of there weight. Max gets 1/4 of the bag, Jasmine gets 1/3 of the bag, and Springer gets the rest. what fraction of the bag dose Springer get?

I will give BRAINLIEST to the person that solves this.

Answers

1/4 is the same as 3/12 and 1/3 is the same as 4/12. The full bag of dog food can be represented by the fraction 12/12. So if we subtract 3/12 and 4/12 from 12/12 we will be left with the rest of the dog food(which springer get fed), which is 5/12

If Max gets 1/4 of the bag, Jasmine gets 1/3 of the bag then Springer gets 5/12 of the bag of dog food.

What is Fraction?

A fraction represents a part of a whole.

Given that Amelie has three dogs, Max, Jasmine, And Springer.

Max gets 1/4 of the bag, Jasmine gets 1/3 of the bag, and Springer gets the rest.

We have to find the fraction of the bag dose Springer get

Let's first add up the portions of food that Max and Jasmine get.

Max's portion = 1/4

Jasmine's portion = 1/3

The total of their portions is:

1/4 + 1/3 = 3/12 + 4/12 = 7/12

This means that Springer gets the remaining portion of the bag:

1 - 7/12 = 5/12

Therefore, Springer gets 5/12 of the bag of dog food.

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PLEASE HELP WILL MARK BRAINLIEST NO FAKE ANSWERS OR WILL BE REPORTED
A box is 15 x 20 inches. In the box there are cut out squares of the same size from each corner. Mark the side of the cut-out square by x. write an expression the represent the width of the box.

Answers

Answer:

If you draw the picture you see that your rectangle

will form a box 14 inches by 9 inches by 3 inches high

20 inches - 3 inches - 3 inches = 14 inches

15 inches - 3 inches - 3 inches = 9 inches

The height is formed by the dimensions of where

you cut out the 3 inch squares

The volume of a box is found by multiplying

length x width x height

The length is 14 inches

The width is 9 inches

The height is 3 inches

Step-by-step explanation:

here easy

May I please receive help?

Answers

You set the problem up: 3x + x = 84. With x representing angle 2. 4x=84 makes x = 21. Therefore angle 2 is 21.

What is the factored form of this expression?

4t2 − 27t + 18

A.
(4t − 18)(t − 1)
B.
(4t − 3)(t − 6)
C.
(2t − 9)(2t − 2)
D.
(2t − 6)(2t − 3)

Answers

Answer: B. (4t - 3)(t - 6)

Step-by-step explanation:

(4t - 3)(t - 6)

= 4t^2 - 24t - 3t + 18

= 4t^2 - 27t + 18

Answer:

B

Step-by-step explanation:

Sum = -27

Product = 18*4 = 72

Factors = (-24) ; (-3)     {(-24)*(-3)=72 & (-24) + (-3) = -27}

4t² -27t + 18 = 4t² - 24t - 3t + (-3)*(-6)

                    = 4t(t -6) - 3(t - 6)

                    = (t - 6)(4t - 3)

i am confused and this is my last test on my khan academy due list

Answers

Answer:

[tex]3^{3}[/tex]= 3*3*3 or 27

[tex]4^{3}[/tex]= 4*4*4 or 64

[tex]3^{4}[/tex]= 3*3*3*3 or 81

Step-by-step explanation:

Hope this helps! :)

Answer:

[tex]X^{3}[/tex] = [tex]3^{3}[/tex] = 3*3*3 = 27    ( Because X is equal to 3 )

[tex]4^{X}[/tex] = [tex]4^{3[/tex] = 4*4*4 = 64

[tex]X^{4}[/tex] = [tex]3^{4}[/tex] = 3*3*3*3 = 81

Step-by-step explanation:

Hope this helps!

Solve the equation 3x -7=2

Answers

Answer: x=3

Step-by-step explanation: hope this help

What does the slope represent in this graph ?

Answers

Answer:

The steepness of the line

Step-by-step explanation:

3/3

hello i need the answer what is the product of 15/16

Answers

Answer:

The product is 240.

Step-by-step explanation:

The product is always when you multiply numbers together.

Answer:

Using 15 times table, we have 15 times 8 = 15 × 8 = 120. Hence, 15 times 8 is 120. b) First, we will write 15 times 7 minus 5 mathematically.

Table of 15 up to 20.

15 × 11 = 165 15 × 16 = 240

15 × 14 = 210 15 × 19 = 285

15 × 15 = 225 15 × 20 = 300

Step-by-step explanation: Hope this help!

Hi Hawk1amon I saw you answer my question but it been a long time on the question for me not to text anymore so I can’t say hi back. Plus I don’t use Brainly.com anymore right now but I do check it sometime, I don’t know if you even going to see this but it ok

It says find the product, then list the units. Please explain how to do this! Best explanation gets brainliest

Answers

Answer:

$72

Step-by-step explanation:

it is like how much someone earns for 8 hours of work at the rate of $9 per hour.

The rate of the answer is dollars since it's the money earned

Line j passes through the points (-5,-2)
and (5,4).

Line k passes through the point
(-3,6) and is perpendicular to line j.

Find an equation for line k.


**the answer is probably in slope intercept form.

Answers

Answer:

y = - 5/3x + 1

Step-by-step explanation:

Slope of line j = (-2-4)/(-5-5)

Slope = -6/-10 = 3/5

Slope of the perpendicular line k: -5/3

Point of line k: (-3,6)

y-intercept of line k = 6 - (-5/3)(-3) = 6 - 5 = 1

what is the answer to 7 1/3 + 5 4/5

Answers

Answer:

13 2/15

Step-by-step explanation:

Daisy is building a rectangular pen for her chickens along one wall in her back yard. She needs to build a fence
along the remaining three sides of the pen. She represents this situation with the inequality w +21 <125.
Which explanation correctly interprets this inequality?
Daisy has one side of the rectangular pen along the wall, so she needs one width, w, and two lengths,
21. She has at most 125 feet of fencing materials to build the fence for her pen.
Daisy has one side of the rectangular pen along the wall, so she needs one width, w, and two lengths,
21. She has at least 125 feet of fencing materials to build the fence for her pen.
Daisy has one side of the rectangular pen along the wall, so she needs two widths, w, and one length,
21. She has at least 125 feet of fencing materials to build the fence for her pen
Daisy has one side of the rectangular pen along the wall, so she needs two widths, w, and one length
21. She has at most 125 feet of fencing materials to build the fence for her pen.

Answers

Answer:

Daisy has one side of the rectangular pen along the wall, so she needs one width, w, and two lengths, 2ℓ. She has at most 125 feet of fencing materials to build the fence for her pen

1 second/24 frames

so if he started with 0 frames

time s = (1/24) (additional f)

but he already had at least 250 frames

so

time s = (1/24)( f-250) or maybe less time if he had more than 250

24 s </= f - 250

or

f >/= 24 s + 250

Step-by-step explanation:

Compute $\frac{3}{4}\cdot \frac{8}{9}\cdot \frac{15}{16}\cdot \frac{24}{25}\cdot \frac{35}{36}\cdot \frac{48}{49}\cdot \frac{63}{64}\cdot \frac{80}{81}\cdot \frac{99}{100}$. Express your answer in the simplest way possible.


(Suggestion: First, try computing $\frac{3}{4}\cdot \frac{8}{9},$ then $\frac{3}{4}\cdot \frac{8}{9}\cdot \frac{15}{16},$ and so on. Look for patterns.)

Answers

Answer:

[tex] \sf\frac{3}{4}\cdot \frac{8}{9}\cdot \frac{15}{16}\cdot \frac{24}{25}\cdot \frac{35}{36}\cdot \frac{48}{49}\cdot \frac{63}{64}\cdot \frac{80}{81}\cdot \frac{99}{100} \\ \implies \sf \frac{3 \times 8 \times 15 \times 24 \times 35 \times 48 \times 63 \times 80 \times 99}{4 \times 9 \times 16 \times 25 \times 49 \times 64 \times 81 \times 100} \\ \implies \sf \frac{7333035494400}{11732856791040} \ \sf \\ \implies \sf \: 0.625[/tex]

You want to buy three books that are on sale at 20% off. The original prices of the books are $2.50, $4.95, and $6.00. How much will you save?
I already know how to do it with With Distribution, Can somebody please do the Calculation Without Distribution?

Answers

First you add up al the original prices which is 2.50, 4.95, and 6.00 and you should get 13.45

Then you would do 13.45 times 20 and you should get 269 and now you divide 269 by 100 and that would be 2.69 and thats 20% off now take 13.45 your total subtracted by your 20% off which is 2.69 and you would get 10.76 and thats your total

PLEASE HELP ASAP!!!!!

Answers

Answer: -8/7

Step-by-step explanation: (-2)(4)/7

Riski states that any function written without exponents must be linear.Which function proves Riski 's statement is incorrect? A)y=5x+3 B)y=x⁵+3 C)y=×/3+5 D)y=3/×+5​

Answers

Answer:

D

Step-by-step explanation:

Riski states that any function written without a exponent must be linear ( straight) however the equation y= 3/x+5 shows a non-linear line when graphed.

The slope of a line is 0, and the y-intercept is 6. What is the equation of the line written in slope-intercept form?

A. Y = x + 6
B. Y = 6x
C. Y= 6

Answers

Answer:

C

Step-by-step explanation:

slope('m") = 0     y-intersect ("b") = 6

y= mx + b

y = 0x + 6

y = 6

the formula is y=mx+b
the m is the slope
the b is the y intercept
since the y int is 0 we don’t need to write it

y=6x is the answer

You want to buy some rice.A 9-ounce package costs $2.79. A 15-ounce package costs $4.80.A 24-ounce package costs $6.96. Which package is the best to buy?

Answers

Answer:

A 9 ounce package

Step-by-step explanation:

I think it is

What answer B?
I’m confused

Answers

Answer:

about 35 mins

Step-by-step explanation:

this maths question i don’t really understand

Answers

Answer:

I think it is straight forward, u just have to solve the problem

Step-by-step explanation:

so 35 x 586= 20510

3.5 x 5860=20510

36 x 586=21096

70 x 586=41020

______________electricity is the type of electricity commonly used in homes and businesses throughout the world.
Alternating current
Direct current

Answers

Answer:

AC or Alternating current electricity

Step-by-step explanation:

nadia typically types 32 words per minute, but her rate may vary by as much as 5 words per minute. let x be the actual rate at which nadia types. what is the range of rates, in words per minute , that nadia could type

Answers

The range of rate at which Nadia could type is given by the inequality equation 27 ≤ x ≤ 37  where x is the number of words per minute

What is an Inequality Equation?

Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.

In an inequality, the two expressions are not necessarily equal which is indicated by the symbols: >, <, ≤ or ≥.

Given data ,

Let the total number of words typed per minute be = x

Now , the value of x is calculated by

The number of words Nadia can type = 32 words

The rate of change of words per minute = 5 words

So , Nadia can type 5 words slower or faster

So , the value of x ranges from ( 32 - 5 )  and  ( 32 + 5 )

So , the value of x ranges from 27 words per minute to 37 words per minute

The inequality equation is given by

27 ≤ x ≤ 37 , where x is the number of words typed by Nadia per minute

Therefore , the inequality equation is 27 ≤ x ≤ 37

Hence , the range of the inequality equation is 27 ≤ x ≤ 37

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Nate is baking cookies for a bake sale. He needs 2 1/4 cups of flour for each batch of cookies, and he needs to make 3 1/3 batches. How much flour does Nate need to make his cookies? 5 7/12 cups 6 1/12cups 6 7/12 7 1/2cups​

Answers

Answer:

correct the answer is 7[tex]\frac{1}{2}[/tex]

Step-by-step explanation:

The required cups of floor needed to make his cookies is 7 1/2 cups. Option D is correct.

Given that,
Nate is baking cookies for a bake sale. He needs 2 1/4 cups of flour for each batch of cookies, and he needs to make 3 1/3 batches, how much flour does Nate need to make his cookies is to be determined.

What is simplification?

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
Amount of floor for each batch of cookie = 2 1/4
Total floor required to bake 3 1/3 batches = 9 / 4 × 10 / 3 = 7 1 / 2

Thus, the required cups of floor needed to make his cookies is 7 1/2 cups. Option D is correct.

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