Sarah changed the quadratic function x^2 - 8x+10 from
standard form to vertex form using the method
of completing the square. What number did Sarah add to
both sides of the equation during the process?
a. -8
b. 16
C. 10
d.-4

Answers

Answer 1

Answer:

is d because the vertex is not helping the square

Step-by-step explanation:


Related Questions

Triangle XYZ is similar to triangle fgh solve for n​

Answers

Answer:

Step-by-step explanation: the answer is 18

how many yards are in 8.2 Miles?​

Answers

The answer is 14432 yards

Answer:

14432 yards I hop this helps

Your grandmother has given you a gift of $1500 for your birthday. You are thinking about your future and
considering two different options on how to manage your money. Option A: You take all of your $1500 and
deposit it into a savings account that has a 5% interest rate per year. Option B: You spend $500 on a new
Apple Watch and deposit the remaining $1000 in a savings account that has a 5.5% interest rate per year.
.
Which account would have the most in 10 years? 20 years? Mathematically, explain your reasoning.
Which option would you choose and why?
.

Answers

Answer:

B

Step-by-step explanation:

if you put the rest of your money in a savings account you can use that money for your college fund or maybe buy a car ect.

Answer:

OPTION A yields the most money at 10 and 20 years. Hence Option A is the better choice for "thinking about your future"

Step-by-step explanation:

In the absence of any more information, I am going to assume that Simple Interest applies. (see attached)

hence the applicable formula is:

A = P(1+rt), where

A = final amount after t years

P = Principal (beginning) amount ($1500 for option A and $1000 for option B)

r = annual interest rate (5% = 0.05 for option A and 5.5% = 0.055 for option B)

t = time (we are asked to evaluate t = 10 years and t = 20 years)

For option A :

P = $1500 and r = 5% = 0.05

A = P(1+rt)

A = 1500 [ 1 + (0.05)t]

at 10 years: A = 1500 [ 1 + (0.05)(10)] = $2,250

at 20 years: A = 1500 [ 1 + (0.05)(20)] =$3,000

For option B :

P = $1000 and r = 5.5% = 0.055

A = P(1+rt)

A = 1000 [ 1 + (0.055)t]

at 10 years: A = 1000 [ 1 + (0.055)(10)] = $1,550

at 20 years: A = 1000 [ 1 + (0.055)(20)] = $2,100

Comparing all the 4 results above, we can see that OPTION A yields the most money at 10 and 20 years. Hence Option A is the better choice for long term returns.

2 1/3:4 1/2 write the ratio as a fraction in simplest form

Answers

Answer:

14/27

Step-by-step explanation:

7/3 ÷ 9/2

7/3 x 2/9 = 14/27

When looking at a graphed System of Equations,
how do you determine which line is the better
deal?

Answers

Answer:

Step-by-step explanation:

So, if we are looking to save money, then it would probably be a good choice to go for the least steepest line. Assuming Money stands for the Y axis and Quantity stands for the X axis, then looking at the least steepest line means the lowest Y axis, which translates to the least amount of money.

what is the measure of CBF?

Answers

144° i’m pretty sure

Answer:

∠CBF=136°

Step-by-step explanation:

The angles along a straight line always add up to 180:

∠CBF+∠FBA=180

∠CBF+44=180

∠CBF=136°

If p+q/s = 9, q/p= 4, and square root q= 6, what is the value of s?

Answers

Answer:

5

Step-by-step explanation:

square root q = 6 meaning that q is 36, when q/p = 4 you can plug in36 for q and divide by 4 getting 9 and now you have q = 36 and p = 9, and p+9=45 and 45/5=9 meaning that s is 5.

if u help me ur a very nice person :DDD

Answers

Answer:

D. -31 is less than -23

Step-by-step explanation:

A pizza store sold 36 pepperoni pizzas in a day, which was 24% of their pizza sales.
What was the total number of pizzas sold that day?

Answers

Answer:

150 pizzas

Step-by-step explanation

36 pizzas are equivalent to 24% so i divided both sides by 4 which gave me 9 pizzas  for 6% . But 6 cannot fully fit into 100 so it will have to be a decimal i did 100 divided by 6 so i would know what i would have to divide both sides by which gave me  50/3 which was 16.66666667 which when i times by 9 by it gave me 150 pizzas

Hope this helps

Need Help On Number 2

Answers

What is the question for number 2?

Work out the size of angle x.
Not drawn accurately
132°
X Х
54°

Answers

Answer:

x = 84

Step-by-step explanation:

The sum of the angles around a point = 360°

sum the given angles and equate to 360

x + 132 + 54 + 90 = 360

x + 276 = 360 ( subtract 276 from both sides )

x = 84

Answer:

x = 84°

Step-by-step explanation:

→ Recall the fact that angles around a point add up to 360°

360 - (90 + 54 + 132 ) = x

→ Simplify

360 - 276 = x

→ Simplify again

84 = x ∴ x = 84°

I need help please, I need the answer, I am not good at math :(

Answers

Um u think it might be um I am probably wrong but try 10

Maria is a florist in a small boutique. If Maria paid her supplier 8.50$/dozen for roses and sold them for 19.95$, what was the mark up in percent?

Answers

Answer:

The markup percentage was 135%.

Step-by-step explanation:

In order to find the markup percent, you have to take the sales price minus the cost and divide that by the cost. Then, you have to multiply by 100 to establish the markup percentage:

markup percentage=((19.95-8.50)/8.50)*100

markup percentage=(11.45/8.50)*100

markup percentage=135%

According to this, the answer is that the markup percentage was 135%.

Need Help Due Tomorrow

MUST SHOW WORK!
don’t bother answering if not going to show work

Answers

Step-by-step explanation:

If D8=127

Therefore D4 =D8 (because corrosponding angles (forming 'F')

Therefore, the D4=D1(because vertically opposite angle)

There fore D4+D1

i. e 127+127 =254

The option (A) is the correct one

PLZZ GIVE ME BRAINLIEST TAG

THANK YOU........

Which expression is equivalent to 3(x - 2)+2x?
-X
3x
5x - 2
5x -6

Answers

Hey there!

The answer to your question is the third option; [tex]5x-6[/tex]

First, we'll start by simplifying your expression. Given:

[tex]3(x - 2)+2x[/tex]

Distribute the [tex]3[/tex]:

[tex]3x-6+2x[/tex]

Add [tex]3x[/tex] and [tex]2x[/tex]:

[tex]5x-6[/tex]

Therefore, the third option is correct.

Have a terrificly amazing day! :)

Find A, 120°,140°,95°,80°

Answers

Answer:

a looks congruent to 95° so it's maybe around 95°

Step-by-step explanation:

i'm not sure sorry, but i think it's close to 95°

A = 105 degrees

pentagons add up to 540, and all angles added up is 435. 540 - 435 is 105.

Two groups are hiking at about the same speed . Mario’s group hikes for 2.5 hours Seemas group hikes for 4.7 hours and covers 8.8 more miles . How fast are the kickers going ? Solve the equation below to find out . 4.7x=2.5x+8.8

Answers

Answer: 18.8 miles

Step-by-step explanation:

Ww are given the equation 4.7x=2.5x+8.8 to solve the question. This will be:

4.7x = 2.5x + 8.8

Collect like terms.

4.7x - 2.5x = 8.8

2.2x.= 8.8

x = 8.8/2.2

x = 4

To know how fast the kickers are going will be

4.7x = 4.7 × 4 = 18.8 miles

two angles of a triangle measure 29 degrees and 12 degrees what is the measure of the third angle?

Answers

Answer:

The measurement of the third angle would be 139 degrees.

Step-by-step explanation:

Using the triangle sum theorem, you already know that all interior angles of a triangle add up to 180 degrees. So since you already have two angle measurements, all you have to do is add them together and subtract them from 180 degrees. In this case it is 29+12, which equals 41. Now you subtract that from 180 and get 139.

I hope this helps!

The auditorium where the spring musical will be performed has 10 seats in the 1st (front) row. Each row behind the Ist row has 4 more seats than does the row in front of it.

how many seats are in the 7th row?

Answers

Answer:

38 seats

Step-by-step explanation:

10 + 4x = y

The answer is 38
Explanation.

? divided by 1/3= 9/10

Answers

Answer:

3/10

Step-by-step explanation:

because if you use a calculator that answer would be 0.9 which is 9/10 as a decimal and if u did it yourself then you would do 1/3 x 9/10 and you would get 9/30 which is 3/10 if u simplify it

PLEASE HELP WHATS THE ANSWER

Answers

Answer:

2,744

Step-by-step explanation:

[tex]C = 400 \sqrt[3]{n} + 200 \\ \\ plug \: C =5800 \\ \\ 5800 = 400 \sqrt[3]{n} + 200 \\ \\ 5800 - 200 = 400 \sqrt[3]{n} \\ \\ 5600 = 400 \sqrt[3]{n} \\ \\ \frac{5600}{400} = \sqrt[3]{n} \\ \\ 14 = \sqrt[3]{n} \\ \\ {(14) }^{3} = {(\sqrt[3]{n})}^{3} \\ (cubing\: both\: sides) \\\\ 2,744 = n \\ \\ n = 2,744[/tex]

Evaluate the following expression: 3/7 x 8/9

Answers

24/63 and 8/21 for the simplified answer

Answer:

2(3)+

Step-by-step explanation:

just multiply the divider by the numerator

what is the inverse of this function

Answers

I think it’s literally the opposite operation so instead of subtracting it’s adding I believe because inverse is the opposite

Pls help me out. :)..

Answers

Answer:

1402 tiles

Step-by-step explanation:

so in order to find the amount of glass tiles we will first need to find the surface area of the box

so the surface area formula for a rectangular prism is

2 (wl * hw* hl)

w- width

h- height

l- length

so the width would be 18centimeters

the height would be 7 cm

and the length would be 23 cm

therefore if we plug in the measurements into the equation it will give us a total surface area of

1402cm^2

therefore if Dimitri wants to cover the box with 1cm glass tiles then we take the 1402cm and divide it by 1cm leaving us with the same answer of

1402 tiles

Solve the system by substitution.
y = 8x
y = 4x + 8

Answers

Answer:

y = 16

x = 2

Step-by-step explanation:

y = 8x

y = 4x + 8

then, by substitution:

8x = 4x + 8

8x - 4x = 8

4x = 8

x = 8/4

x = 2

y = 8x

y = 8*2

y = 16

Check:

y = 4x + 8

y = 4*2 + 8

16 = 8 + 8

A recipe calls for 3/2 cups of sugar to make 24 cookies. How many cups of sugar are needed to make 60 cookies?

Answers

Answer:

3.75 or 3 and 3/4

Step-by-step explanation:

3/2 Cups = 24 Cookies

    ?Cups      60=Cookies

Divide 60 by 24, which is 2.5

2.5x3/2 is 3.75 or, in fraction, 3 and 3/4

3 and 3/4 cups of sugar and needed to make 60 cookies

(a) An angle measures 51°. What is the measure of its complement?
(b) An angle measures 113°. What is the measure of its supplement?

Answers

Step-by-step explanation:

For a

Let the another angle be x then

x + 51° = 90° {being complementary angles }

x = 90° - 51°

x = 39°

For b

Let the another angle be x then

x + 113° = 180° {being supplementary angles }

x = 180° - 113°

x = 67°

Find the value of x

Please help me :)

Answers

Answer:

The answer should be 142 as triangles have a value of 180

Step-by-step explanation:


Describe a strategy to visualize and calculate=20% off
40.

Answers

Answer:

32

Step-by-step explanation:

First you're going to change 20% to a decimal which would be 0.20

Next, multiply .20 by 40

You should get 8

Subtract 8 from 40

You're answer is 32

PLEASE SHOW WORK ILL GIVE BRAINLIEST DUE TODAY!!!
14 + 18 ÷ 2 x 18 – 7 5) 60 – 9 x 8 ÷ 8 x 6





15 x 10 + 12 ÷ 3 + 9 6) (10 ÷ 5)3 + 100 – 9 x 11





8 x 4 + 9 – 9 + 18 7) 3 x 8 x 2 – 42 + 5

Answers

Answers:

14 + 18 ÷ 2 x 18 – 7 = 169

14 + 9 * 18 - 714 + 162 - 7169

60 – 9 x 8 ÷ 8 x 6 = 6

60 - 72 / 8 * 660 + -216/460 - 546

15 x 10 + 12 ÷ 3 + 9 = 163

150 + 12 / 3 + 9 150 + 4 + 9163

(10 ÷ 5)3 + 100 – 9 x 11 = 7

2 * 3 + 100 - 9 * 116 + 100 - 997

8 x 4 + 9 – 9 + 18 = 50

32 + 9 - 9 + 1841 - 9 + 1832 + 18 50

3 x 8 x 2 – 42 + 5 = 11

24 * 2 - 42 + 5 48 - 42 + 5 11

i hope this helps, good luck :)

Answer:

Step-by-step explanation:

14 + 18 ÷ 2 x 18 – 7 = 169

14 + 9 * 18 - 7

14 + 162 - 7

169

60 – 9 x 8 ÷ 8 x 6 = 6

60 - 72 / 8 * 6

60 + -216/4

60 - 54

6

15 x 10 + 12 ÷ 3 + 9 = 163

150 + 12 / 3 + 9

150 + 4 + 9

163

(10 ÷ 5)3 + 100 – 9 x 11 = 7

2 * 3 + 100 - 9 * 11

6 + 100 - 99

7

8 x 4 + 9 – 9 + 18 = 50

32 + 9 - 9 + 18

41 - 9 + 18

32 + 18

50

3 x 8 x 2 – 42 + 5 = 11

24 * 2 - 42 + 5

48 - 42 + 5

11

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