What number needs to be added to both sides of the equation in order to complete the square?
x^2+16x=18

Answers

Answer 1
you have to subtract 18 from both sides 

x^2 + 16x = 18

x^2 + 16x (-18) = 18 -18

x^2 + 16x - 18 is your answer :D
Answer 2
Answer: c = 64
In order to find the 'c' value to complete the square, you use the equation c = (b/2)^2. Since 16 = b, c will equal 64. 16/2 = 8, and 8^2 = 64. The final resulting equation will be (x+8)^2 = 82.

Related Questions

Sofia is learning to knit. After her first three stitches, she had to undo the last two. Then she made three more stitches and again, had to undo the last two. If this pattern continues, how many stitches will Sofia have to make before she has six good stitches?

Answers

I think so 3 times because the first time the total was 2
2*3 is 6
18 stitches I think I don't know use Google. that will help

How much would $200 invested at 7% interest compounded annually be worth after 5 years? Round your answer to the nearest cent.

Answers

Use the Compound Amount formula:

A = P (1 + r)^t, where P is the principal, r is the interest rate as a decimal fraction, and t is the number of years.

Here, A = $200 (1 + 0.07)^5    =    $500(1.07)^5    =   $280.51.

The interest earned would be $80.51.

Answer:

280.51

Step-by-step explanation:

What is eight worth in 8.517

Answers

It’s worth 8 no joke. It’s in the ones place

Which of the following is a reasonable estimated answer to the following problem?

989,867 ÷ 999

Answers

990 would be a reasonable guess because you would round 989,867 up to 990,000 and divide that by the number you rounded 999 to (the number your round 999 to would be 1,000) by dividing 990,000 by 1,000 you get 990
990.8578578578578, because there’s going to be more on the other side of the decimal because, the biggger number is in the hundred thousands.

The line of best fit drawn on the plot shown is used to predict the number of tickets sold on a certain day. Use the two points shown on the line of best fit to calculate its slope to the nearest tenth.


Slope=

Answers


The two points are (1,30) and (7,55). Slope = the change in y/the change in x. Slope is -25/-6, which simplifies to 4.2.
(7,55)(1,30)
slope = (55-30) / (7-1)
slope = 25/6
slope = 4.2

Will give brainliest!!! :)
Thank you

Answers

(-12) + 6/12 = 12/1 + 6/12=18/12=1 6/12 or 1/2
To add the fraction, just find LCD (least Common Denominator), and then combine the two parts to get your answer which is known as 24

Graph ​ y=−5/6x−4 ​. (if you can give me the coordinates)

Answers

the slope is -5/6 and y intercept is -4

 so the first dot  goes on (0,-4)

 the next dot would go

-5/6 x 4 = -29/6

(1,-29/6)


MS Nelson had 5,280 craft sticks. She gave all of the craft sticks to her 22 students. Each student received the same number of craft sticks. I need the answer to part b and c. I already did a and half of b

Answers

240 and can i get brainlist?
and hope this help you(-;
For B Just take the number that each student had and divide that by 2 and you will get half of the average.
For C it should be the same number because it was split half and half

write a word problem that can be solved by ordering three decimals to thousandths include a solution

Answers

If I have a bolt that has a diameter of 1.125 inches and a hole that's 1.300 inches with a tolerance of +/- 0.025 inches, what's the larger even tolerance I can have on the bolt to ensure it will pass through the hole? Answer: +/- 0.150 inches.

Which graph represents the equation y=13x−4 ?

Answers

Answer:  The correct option is graph (A).

Step-by-step explanation:  We are given to select the graph that represents the following linear equation :

[tex]y=\dfrac{1}{3}x-4~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)[/tex]

Comparing with the slope-intercept form y = mx + c of a straight line, we see that

the slope of the line (i) is [tex]m=\dfrac{1}{3},[/tex] and y-intercept, c = -4.

Also, we know that the slope of a line passing through the points (a, b) and (c, d) is given by

[tex]m=\dfrac{d-b}{c-a}.[/tex]

Graph (A) :  

The points (0, -4) and (3, -3) lies on the line. So, its slope will be

[tex]m=\dfrac{-3-(-4)}{3-0}=\dfrac{1}{3},[/tex]

the point where the line crosses the y-axis is (0, -4).

That is, y-intercept, c = -4.

Since the slope and y-intercept of graph (A) is same as that of line (i), so this option is CORRECT.

Graph (B) :  

The points (0, -2) and (3, -3) lies on the line. So, its slope will be

[tex]m=\dfrac{-3-(-2)}{3-0}=-\dfrac{1}{3},[/tex]

Since the slope of graph (B) is not same as that of line (i), so this option is NOT CORRECT.

Graph (C) :  

The points (0, -4) and (-3, 3) lies on the line. So, its slope will be

[tex]m=\dfrac{3-(-4)}{-3-0}=-\dfrac{7}{3},[/tex]

Since the slope of graph (C) is not same as that of line (i), so this option is NOT CORRECT.

Graph (D) :  

The points (-4, 0) and (-3, 3) lies on the line. So, its slope will be

[tex]m=\dfrac{3-0}{-3-(-4)}=\dfrac{3}{1}=3,[/tex]

Since the slope of graph (B) is not same as that of line (i), so this option is NOT CORRECT.

Thus, graph (A) is the correct option.

a cube has a volume of 8 cubic inches what is the length of each edge of the cubes

Answers

Answer:

The formula for the volume of the cube is v=a3 where a is the length of the edge the volume of the cube is 1/8 cube inches v= 1/8 cube inches a3=(1/2)3 cubic inches

Step-by-step explanation:

Marcia buys a dress that is on sale for 15% off it's original price. She uses a store coupon to obtain an additional 10% off the sale price. Marcia pays $91.80 for the dress. What was the original price of the dress?

Answers

15% off the original price
10% off the sale price
Sale price $91.80 

First we have to find out the price before 10% discount. 
(sale price) divided by (1 - percent of sale price)

91.80/(1 -.10) = $102

So, $102 was the price before the 10% discount. Now we need to do the same with the 15% off so that we can get the original price.

102/(1 - .15) = $120 

The original price was $120

Answer:

120$

Step-by-step explanation:

We must calculate the prices with the application of discounts successively

The last discount he got was 10%, so $ 91.80 equals 90% of the price

We calculate the price before this discount by applying with a simple rule of three

[tex]90 \% \longrightarrow 91.80\\100\% \longrightarrow x\\x=\frac{(100)(91.80)}{90}\\ x= 102\$[/tex]

She pays $ 102 with a 15% discount, so this value equals 85% of the original price

We calculate the price before this discount by applying with a simple rule of three

[tex]85\% \longrightarrow 102\\100\% \longrightarrow x\\x=\frac{(100)(102)}{85}\\ x= 120\$[/tex]

Help please!
-4x - 11
What is the answer is x = -15

A. -71
B. -49
C. 49
D. 71

Answers

-4(-15)-11
60-11
49
your answer is C

Sean spelled 13 out of 20 words correctly on his srelling test. Write his test score as a percent.

Answers

Sean has scored a score of 65% on his spelling test
percent means parts out of 100
x%=x/100


so 13/20=x%
13/20=x/100
multiply both sides by 100 to find x
1300/20=x
130/2=x
65=x

his score as a percent is 65%

Identify the corresponding word problem given the equation: x - 9.2 = 12.8 A) Nick ran 9.2 miles less than Perry last week. If Nick ran 22 miles, how many miles did Perry run? B) Nick ran 12.8 miles less than Perry last week. If Nick ran 9.2 miles, how many miles did Perry run? C) Perry ran 9.2 miles less than Perry last week. If Nick ran 12.8 miles, how many miles did Perry run? D) Nick ran 9.2 miles less than Perry last week. If Nick ran 12.8 miles, how many miles did Perry run?

Answers

The correct answer is D

Nick ran 9.2 miles less than Perry last week. If Nick ran 12.8 miles, how many miles did Perry run?

x - 9.2 = 12.8

x = 12.8 + 9.2

x = 22

Perry ran 22 miles for the week, 9.2 miles more than Nick.

Answer:

correct answer is D

Step-by-step explanation:

A ferry traveled 1/6 of the distance between two ports in 3/7 hour. At this rate, what fraction of the distance between the two ports can the ferry travel in one hour?

Answers

(1/6) / (3/7) = x / 1......1/6 distance to 3/7 hr = x distance to 1 hr
cross multiply
(3/7)(x) = (1/6)(1)
3/7x = 1/6
x = (1/6) / (3/7)
x = 1/6 * 7/3
x = 7/18 <=== 7/18 of the distance in 1 hr

which of these skills do you think you could teach someone else select all that apply
A. finding the square and roots of numbers
B. identifying rational and irrational numbers
C. comparing values of rational and irrational numbers
D. evaluating perfect squares and cubes
E. using roots to represent solutions to equations

Answers

a,b,c,d,e. jxddddssssssssssssssss

Answer:

Every answer is correct lol

Which distributive property represents the area of the rectangle?



(3 x 3) + (3 x 4)


(3 x 3) + (3 x 9)


(9 x 3) + (6 x 9)


(3 x 3) + (3 x 6)

Answers

The first answer. (3 x 3) + (3 x 4)
(3 x 3) + (3 x 6)
Because length of fig, 1 (the smaller one) is 3, which needs to be multiplied by 3 (the width)
Then the 6 needs to be multiplied by the width of three to find the area

if 234 players are separated into 18 equal teams,how many players will be on each team?

Answers

13 players on each team :)
You can separate the players into 18 teams, there need to be 13 players on each team.

What is the GCF of 32a and 48b??

Answers

i think that the answer is 4

16 is the greatest common factor

PLEASE HELPPPPP
The expression 60(1+x) represents the total bill including the tip. What do the different parts of the expression represent? Match each expression to the correct description.

1) Cost of meal __
2) Tip percentage __
3) Number of friends __


a) x
b) (1+x)
c) 60

Answers

cost of the meal is 60, the number of friends is x, and the tip is 1+x

Answer:

1) Option c

2) Option b

3) Option a

Step-by-step explanation:

Given : The expression 60(1+x) represents the total bill including the tip.

To find : What do the different parts of the expression represent?

Match each expression to the correct description.

1) Cost of meal __

2) Tip percentage __

3) Number of friends __

Solution :

The expression represents the total bill including the tip is 60(1+x).

When we see the expression,

The cost of the mean is always fixed.

So, Cost of the meal is 60.

Number of friends is unknown.

So, Number of friends is 'x'.

The tip percentage is given by '1+x'.

The manager of a plant nursery bought 120 lb of soil to use for potting plants. The manager can put 5 lb into each of the small pots and 12 lb into each of the large pots. The manager made a sketch to show the line representing the different combinations of pots that can be used. The x-axis represented the number of small pots and the y-axis represented the number of large pots. The manager labeled only the intercepts.


Which points did the manager label?




1. (0, 12) and (5, 0)


2. (0, 10) and (24, 0)


3. (0, 24) and (10, 0)


4. (0, 5) and (12, 0)

Answers

The intercept are the number of each of the pots used when no soil was put in the other pot.
When no soil was put in the large pots, then 120/5 = 24 small pots will be filled.
When no soil was put in the small pots, then 120/12 = 10 large pots will be filled.

THerefore, the points labelled are (24, 0) and (0, 10)
Final answer:

The points that were labelled by the manager on the graph are (0, 10) and (24, 0). These points are found by dividing the total amount of soil by the amount of soil required by each type of pot.

Explanation:

In this Mathematics problem, we need to determine which points were labelled on the graph created by the nursery manager representing combinations of small and large pots. We can find these points, the intercepts, by understanding that these occur when one variable is zero. The x-intercepts happen when all soil is used for large pots (i.e., the y-axis, or number of small pots, is zero), and the y-intercepts occur when all the soil is used for small pots (i.e., the x-axis, or number of large pots, is zero). For the x-intercept, if each large pot requires 12lb of soil, then the manager could fill 120/12 = 10 large pots if no soil is used for small pots. Therefore, the x-intercept is (0, 10). Similarly, the y-intercept would be obtained by dividing the total amount of soil with the amount used for a small pot. That gives us 120/5 = 24. Hence, the y-intercept is (24, 0). So, the points labelled by the manager are option 2: (0, 10) and (24, 0).

Learn more about Intercepts here:

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What two integers is 87 between

Answers

the two integers 87 between is 86 87 89

Answer:

43 and 44

Step-by-step explanation:

im giving 50 points
 Solve the equation.
-4(3 - 2x) + 2x = 2x - 8
A) x = 2
B) x = -1
C) x =
1
2
D) x =
1
3

Answers

-12+8x+2x=2x-8
10x-12=2x-8
8x=4
x=1/2
C
it is probably answer B

How do you write 5.425 as a mixed number in simplest form

Answers

The answer is 17/40.

Two numbers have a distance of 5 units from 0 on a number line. The numbers can be graphed on the number line as points A and B.

Drag and drop the labels to the correct positions on the number line.

Answers

Drag A to negative 5 and B to positive 5.

Answer:

Point A is labeled at x=-5 and point B is labeled at x=5.

Step-by-step explanation:

It is given that two numbers have a distance of 5 units from 0 on a number line.

Let the unknown number be x.

Case 1: x is 5 units less than 0.

[tex]x=0-5[/tex]

[tex]x=-5[/tex]

The point A is labeled at x=-5.

Case 2: x is 5 units more than 0.

[tex]x=0+5[/tex]

[tex]x=5[/tex]

The point B is labeled at x=5.

A pianist plans to play 6 pieces at a recital from her repertoire of 26 pieces. How many different recital programs are possible?

Answers

The number of different recital programs that are possible is 230230 programs

What is combination?

Combinations are also referred to as selections. Combinations implies the selection of things from a given set of things. In this case, we intend to select the objects.

Combination formula:

ⁿCr = n! / ((n – r)! r!)

n = the number of items.

r = how many items are taken at a time

The information will be illustrated as:

= 26! / (26 - 6)! 6!

= 26! / 20!6!

= 230230

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Which story problem could be solved using the given equation? 1/5×2/3=m
 
Lucas needs a wooden strip that is 2/3 yards long for his boat model. He plans to cut the strip into pieces that are each 1/5 yards long. How many pieces can be cut from the 2/3 yard long strip?
 
Jasmine bought some tiles to put around her patio. Each tile has a length of 2/3 foot and a width of 1/5 foot. What is the area, in square feet, of each tile?
 
Lucas’s kitten is 23 foot tall. Jake’s kitten is 1/5 foot taller than Lucas’s kitten. How tall is Jake’s kitten?
 
Karen measured 2/3 cup of milk for a recipe. She then added another 1/5 cup of the milk to the recipe. How much milk did Karen use in the recipe?

Answers

 its b. hope this helps i guess
Final answer:

The story problem that can be solved using the given equation is about finding the area of a tile with given dimensions.

Explanation:

The story problem that can be solved using the given equation 1/5×2/3=m is Jasmine bought some tiles to put around her patio. Each tile has a length of  2/3  foot and a width of  1/5 foot. What is the area, in square feet, of each tile?

To find the area of the tile, we can multiply the length and width of the tile. Plugging in the values from the equation, we have (2/3) * (1/5) = 2/15. Therefore, each tile has an area of 2/15 square feet.

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Choose the symbol that completes the statement.

6/8 ____ 8/10

A: <
B: >
C: =

Answers

 the answer is C:= because when you draw the model if u draw it equally they line up properly

The sequence that begins with 3, where each succeeding term is twice the preceding term

Answers

what do we have  to find??

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