X^2-18x complete the square

Answers

Answer 1

[tex]x^2 -18x \\\\=x^2 - 2 \cdot 9x +9^2 -9^2\\\\=(x-9)^2-81[/tex]


Related Questions

Is the graph increasing, decreasing, or constant?
O A. Decreasing
O B. Increasing
O C. Constant

Answers

Answer:

Increasing

Step-by-step explanation:

As we go further on the x-axis, we can see the Y value going up, thereforth it is increasing

Find 6889 + 3088 + 9062.

Answers

1903

pls mark brainliest

if u want

Answer:

19039

Step-by-step explanation:

hope that help mark me brinilylist

you need to explain more

it was easy

3. Is the triangle a right triangle? Explain.
1.9
2.7
3.23

Answers

we have: [tex](3,23)^{2} \neq (1,9)^{2} +(2,7)^{2}[/tex]

so the triangle isn't a right triangle

ok done. Thank to me :>

Nancy's nut shop sells cashews for $5.30 per pound and peanuts for $2.80. How many pounds of peanuts must be added to 20 pounds of cashews to make a mix that sells for $3.30 per pound?

Answers

Answer:

80 pounds

Step-by-step explanation:

let 'p' = pounds of peanuts to be added

20(5.3) + 2.8p = 3.3(20 + p)

106 + 2.8p = 66 + 3.3p

40 = 0.5p

p = 80

Nancy's nut shop sells cashews for $5.30 per pound and peanuts for $2.80. How many pounds of peanuts must be added to 20 pounds of cashews to make a mix that sells f

Work out
m
and
c
for the line:
3
x
+
2
y

1
=
0

Answers

Answer:

M = -3/2

C = 1/2

Explanation:

3 x + 2 y − 1 = 0

-> 2y = 1-3x

y=-3/2x+1/2

so M = -3/2 and C = 1/2

Brendan says that the negative of - 1/3
is 3 because they are on ​opposite sides of zero when they are plotted on the number line.

​Is Brendan correct? Explain your answer.

Answers

Answer:

No! Brendan has totally got the wrong idea.

Step-by-step explanation:

Numbers on the right hand side of zero are said to be positive, while, the numbers on the opposite side are said to be negative.

That means Brendan's correct in saying that -1/3 lies on the opposite side of 3, since negative numbers lie on the opposite side of the positives.

But,

Negative "of" a number is the same number with opposite sign.

That is, if a number is 3 units away from the zero, it's negative will also be 3 units away from zero, but on the opposite side.

-1/3 and 3 do not lie at the same distance from zero.

-1/3 would be approached before -1 by walking in the negative direction whereas 3 would be approached after 1.

Therefore, Brendan is wrong as the negative of a number has opposite sign but same "magnitude".

In the accompanying diagram, overline BA perp overline BD and overline BC perp overline BE Which statement is true?

Answers

The measure of angle 1 is equal to angle  3

From the diagram, if BA is perpendicular to BD, then;

m<1 + m<2 = 90 degrees

Similarly, if BC is perpendicular to BE, then;

m<2 + m<3 = 90 degrees

Equating both expressions will give:

m<1 + m<2 = m<2 + m<3

Subtract m<2 from both sides

m<1 + m<2 - m<2=  m<2 + m<3 - m<2

m<1 = m<3

Hence the measure of angle 1 is equal to angle  3

learn more on perpendicular lines here: https://brainly.com/question/1202004

20 points please help with this

Answers

Answer:

D) 12

Step-by-step explanation:

27:9=36:x

Well I'm assuming these 2 triangles are similar

Then

3:1=36:x

x=12

Answer:

Option D

Step-by-step explanation:

Since they are in proportion. So,

27 : 36 :: 9 : x

27 × x = 36 × 9

x = 36 × 9/27

x = 12 × 1

x = 12

What is the answer step by step explanation please.

w (3w + 2) + 5w​

Answers

Answer:8w^2+2

w(3w+2)+5w

First distribute the w to the parentheses:

3w^2+w

Add on the 5w to the new equation:

3w^2+2w+5w

Combine like terms:

8w^2+2

Each mobile bags sold by Ravi’s marble company contains 4 purple marbles for every 7 orange marbles if the bag is 56 orange marbles how many purple marbles does it contain

Answers

Answer:

56/7 is 8 so 8x4 is 32 is is easy

The number of purple marbles that the bag contains out of total marbles in the bag is 32.

To find the number of purple marbles in the bag, we can use the given information that each bag contains 4 purple marbles for every 7 orange marbles.

Let's calculate the number of purple marbles in the bag:

1. Given: The bag contains 56 orange marbles.

2. Since the ratio of purple marbles to orange marbles is 4:7, we can set up a proportion:

Purple marbles / Orange marbles = 4 / 7

3. Substitute the given number of orange marbles (56) into the proportion:

Purple marbles / 56 = 4 / 7

4. Now, solve for the number of purple marbles (Purple marbles):

Purple marbles = (4 / 7) * 56

Purple marbles = (4 * 56) / 7

Purple marbles = 224 / 7

Purple marbles = 32

So, the bag contains 32 purple marbles.

Learn more about ratio here

https://brainly.com/question/34270799

#SPJ2

Construct a 60angle
NEEDED ASAP LIKE IN 5 MINUTES OR LESS

Answers

Answer:

but how there is nothing i dk plz can you explain me what the question actually is?

twice the sum of the number and 10 is 60 what is the number?​

Answers

Let the number be n

[tex]\\ \sf\longmapsto 2(n+10)=60[/tex]

[tex]\\ \sf\longmapsto n+10=60/2[/tex]

[tex]\\ \sf\longmapsto n+10=30[/tex]

[tex]\\ \sf\longmapsto n=30-10[/tex]

[tex]\\ \sf\longmapsto n=20[/tex]

What is this in terms of joules?

Answers

0.000239 kilocalorie

please help I don't understand​

Answers

Answer:

104 m^2

Step-by-step explanation:

First find the area of the rectangle.

A = 10 * 8 = 80 m^2

Then find the area of the triangle

A = 1/2 bh = 1/2 (8) *6 = 24 m^2

Add the areas together

80+24 = 104 m^2

What is the answer for 3x-7y=4 solve for y

Answers

y = [tex]\frac{4-3x}{7}[/tex]

Answer:

[tex]y = \frac{ - 4 + 3x}{7} [/tex]

Step-by-step explanation:

follow the steps in the previous answer, but

negative divided by a negative is positive

help please I don't know what the answer could be ​

Answers

pretty sure it’s c but i don’t know

what is 38942390785289037x348092387490287

Answers

38942390785289037x34809238749028

write an expression describing all the angles that are coterminal with 266°

Answers

Answer:

-814°, -454°, -94°, 266°, 626°. Did you mean like that?

evaluate (2x+3y)2 solve​

Answers

Answer:

[tex]4x+6y[/tex]

Step-by-step explanation:

[tex]2\left(2x+3y\right)[/tex]

[tex]2\times \:2x+2\times \:3y[/tex]

[tex]4x+6y[/tex]

[tex]\boxed{\bold {HOPE\: IT\: HELPS\: :)}}[/tex]

my explanation is written in the image, i hope it helps !

Petra runs 2 miles in 22 minutes. How long would it take her to run 12 miles?

Answers

Answer:

132 minutes

Step-by-step explanation:

First find how long it would take her to run 1 mile.

We can do this by dividing 22 by 2.

22 / 2 = 11

It takes her 11 minutes to run 1 mile.

Then multiply that by 12 to find out how long it would take her to run 12 miles

12 * 11 = 132

It would take her 132 minutes to run 12 miles

Answer:

132 minutes to run 12 miles

please pick the right anwers no bots please

Answers

Answer:

1. 2/3

2. 0

3. 7/2

4. -2

5. -2

6. 1

7. -4/3

8. Undefined

9. 8

10. 9/5

Give the function f(x) = -2x -5, determine the value of f(-3)

Answers

Answer: 1

Step-by-step explanation: You are given the function f(x) = -2x-5. The value is (-3) which is the input of the function. The output, y is what gives 1.

Plug in -3 into the given of function of f(-3) = -2(-3) - 5 = 1.

Negative x negative is positive which -2(-3) = 6.

Take 6-5 = 1.

The above function can also be written as y = -2x-5.

The only difference is this is written in y= mx+b for and the above problem is written in function notation.

Hope this explanation helps.

The length of a rectangle exceeds its width by four inches. Find the dimensions of the rectangle if its area is 96 square inches.

Answers

Answer:

the width is 8

Step-by-step explanation:

I know this because 12×8 is 96

and 12 exceeds 8 by 4, that's how I came up with it

Length-12 in

Width-8 in

Area-96 square inches


1. Name a midsegment in the triangle.

Answers

Answer:

EF

Step-by-step explanation:

Hope this helps!

i need help on this assignment

Answers

Answer:

the answer is 10

Step-by-step explanation:

by the why want to be friends??

Answer:

10

Step-by-step explanation:

how do you subtract -5000 from 263

Answers

Answer:

263-5000=4737

Step-by-step explanation:

IF ITS -5000-263

if you subtract a negative to a negative it makes the negative increase. -5000-263 would end up being technically -5000+(-263). A number line would help you, because on a number line, when subtracting, you go to the left.

[-5000+(-263)=-5263]

IF ITS 263-(-5000)

do you see those two - signs? Those cross eachother out, turning it into a +, also making the -5000 not negative anymore. Making 263-(-5000) = 263+5000.

[263+5000=5263]

Please help me out



Fill in the blanks for this graph



1. This graph crosses the y-axis at______



2. The graph increases in the interval_____



3. The graph decreases in the interval____

Answers

1. (0, -5)
2. (4, -5)
3. (-5, 0)

1. This graph crosses the y-axis at 0, -5
2. The graph increases in the interval 4, -5
3. The graph decreases in the interval -5, 0

If x > 0 and y > 0, where is the
point (x, y) located?

Answers

Given, x > 0, y > 0.So, the values of x and y are less than 0, that means, they are negative integers.If we divide a Cartesian plane with the x-axis and y-axis, we get four quadrants.1st Quadrant : (+,+)2nd Quadrant : (-,+)3rd Quadrant : (-,-)4th Quadrant : (+,-)Since the values of x and y are both negative, so (x, y) is located in the 3rd Quadrant.

Hope you could get an idea from here.

Doubt clarification - use comment section

A taxi charges a flat rate of $1.75, plus an additional $0.65 per mile. If
Erica has at most $10 to spend on
the cab ride, how far could she travel?

Answers

Answer: 12.69 miles or less

Step-by-step explanation:

$10 - $1.75 = $8.25

$8.25/$0.65 = 12.69

yall i need help asap! its due in 1hr!!​

Answers

Answer:

for number 6                       2x

for number 7                         8

Step-by-step explanation:

Answer:

6. 8x+3x-9x= 2x

7. 2x-3=13

or, 2x=13+3

or, 2x=16

or, x=16/2

Therefore, x=8

Other Questions
According to The Constitution of the United States...The Privilege of the Writ of Habeas Corpus shall not be suspended, unless when in Cases of Rebellion or Invasion the public Safety may require it.TrueFalse 10.) - 3x - y = - 364x + 4y = 72 which of the following pairs of molecules can form hydrogen bonds between them? group of answer choices ch3oh and nh3 hcl and hi ch4 and h2o fo2 and ch2o h2 and o2 i really need help anyone!!!!! In the first round of her new video game, Eluxxor,Akira scored 220 points. In the second round, she scored 85 points. What is Akira's total score at the end of the second round? which amendment banned the sale & manufacture of alcohol hi hope you are well can someone give the answers will mark as brainliest as soon as I am done with this assignment You are swinging a ball (weighing 188673 mg) around on a rope. The rope is 556 centimeters long. It takes 4.33 seconds for the ball to make one complete rotation. What is the force felt by the ball? Make a blog and get 100 points and the best one get brainliest Ali caught a fish that weighed 9 1/2 lb. Lisa caught a fish that weighed 5 3/4 lb. How much more did Alis fish weigh? Please help me with this question. No. 1 This is way tougher a measure is stated as 1000m correct to the nearest 50m find the lower bound IF YOU KNOW LATIN PLEASE HELP !!Pretend you are Julius Caesar and describe yourself in 5 Latinsentences. Include the English translation. Use your dictionary and do your best.I will give you a head start with the first sentence!Sum Julius Caesar. The gas in a 250. mL piston experiences a change in pressure from 1.00 atm to 2.25 atm. What is the new volume (in mL) assuming the moles of gas and temperature are held constant? Garrison implies that the continued practice of enslavement threatens the existence of America itself.Which detail from the speech best conveys this idea? Pls answer ASAP pls bc Im tryna get my grade up please plzzz help asap 38 point i need help im behind help asap Which of the following best describes a Presidents order to attack terrorist bases?a. military force used as a foreign policy toolb. embargo against terroristsc. executive agreementd. presidential power to grant amnesty what is the name of the President Zn + Fe2O3 --> Fe + ZnO If excess Zn reacts with 1.34g Fe2O3 in the reaction above, how many grams of Fe would you expect to be produced