Mathematics High School

The first two steps in the derivation of the quadratic formula by completing the square are shown below.
Which answer choice shows the correct next step?
Step 1: ax^2+bx+c =0
Step 2: ax^2+bx=-c

Answers

Answer 1

Answer: C

Step-by-step explanation:

Answer 2

Answer:

c

Step-by-step explanation:

Related Questions

Help me??? Pleaseeeeee!?

Answers

Answer:

all u got to dooooo is take two sets of pointssss and find the rate of change using the formula y1-y2 x1/x2

Step-by-step explanation:

A fund-raiser at the school raises $617.50. They sent $580.45 to local charities. What percent of the money went to charities?

Answers

Answer:

94% of the money went to charities.

Urgent, pls help me!!!​

Answers

Answer:

Radius: 2

Center: (-3, 1)


PLEASE HELPPPP I GIVE BRAINLIEST!!!

Answers

The answer is 1860.1

Jay is paid $12.50 per hour. Last week, his paycheck totaled $112.50. How many hours did he work? Write and solve an equation to represent the situation.

Answers

Answer:

9 hours

Step-by-step explanation:

If he earns 12.50 an hour...

112.50 ÷ 12.50 = 9 hours

Answer:

9 hours

Step-by-step explanation:

112.50 ÷ 12.50 = 9 or 9 hours

the crystal clear window washing company washed 1/5 of a high-rise building's window on monday, 1/4 on tuesday, and 3/8 on wednesday.
what percentage of the buildings windows were not washed after three days?

Answers

Answer:

the correct answer is 17.5%

Step-by-step explanation:

someone please help me ASAP!!!! I really need it

Answers

^ this guy is a scammer don’t click the link

The speed of a lion is 150% of the
speed of a deer. If a deer's speed is
16 miles per hour, find the speed of a
lion.

Answers

Answer:

the lions speed would be 24 mph

Answer:

200%

Step-by-step explanation:

20% of what number is 30? Which equation and solution represents each situation?

Answers

Answer:

150

Step-by-step explanation:

it would be 150. i’ll attach an image of the equation

HELP ASAP. I need this in NOW.

Answers

Answer:

B

Step-by-step explanation:

when x=1 y=3.9 when x=2 y=7.8 and so on

Students were asked how they travel to school. The graph shows the results of the survey. Based on the graph, how many students out of 300 students can be expected to walk or bike to school?

Answers

Answer:

we need the graph in order to find the answer.

Step-by-step explanation:

Given the function f(x) = 2 x + 61 - 4, for what values of x is f(x) = 6?

O x= -1, x = 11

Ox=-1, x = -11

O x= 14 = -26

O x= 26, x=-14

Answers

Answer:

[tex]x = -1[/tex] or [tex]x = -11[/tex]

Step-by-step explanation:

Given

[tex]f(x) = 2|x+6| - 4[/tex]

Required

Find x when

[tex]f(x) = 6[/tex]

Substitute 6 for f(x)

[tex]6 = 2|x+6| - 4[/tex]

Add 4 to both sides

[tex]4+6 = 2|x+6| - 4+4[/tex]

[tex]10 = 2|x+6|[/tex]

Divide both sides by 2

[tex]5 = |x + 6|[/tex]

Rewrite as:

[tex]|x + 6| = 5[/tex]

This can be split to:

[tex]x + 6 = 5[/tex] or [tex]-(x + 6)=5[/tex]

Solve for x in both cases

[tex]x = 5 - 6[/tex] or [tex]x + 6 = -5[/tex]

[tex]x = -1[/tex] or [tex]x = -6 - 5[/tex]

[tex]x = -1[/tex] or [tex]x = -11[/tex]

Answer:

i think it’s x= -1, x = -11

Step-by-step explanation:

Jax takes a bus from Washington DC to New York City. The trip takes 5 hrs. and 47 minutes. He arrives in New York City at 1:58 pm. what time did the bus leave Washington DC?

Answers

Answer:

8:11 a.m.

Step-by-step explanation:

We need top subtract 5:47 from 1:58 pm.

Since we cannot subtract 5 from 1, we add 12 to the 1:58 hours digit.

1 + 12 = 13

1 pm is 13 hours of the day.

13:58 - 5:47 = 8:11

Answer: 8:11 a.m.

*WILL GIVE BRAINLIEST*

The sum of the areas of all the faces of a 3D object is called:

A: area
B: surface area
C: volume
D: perimeter

Answers

Answer:

b

Step-by-step explanation:

Answer:

Surface area

Step-by-step explanation:

Area is the space taken up by one surface plane

Volume is the amount of space taken up by the entire object

Perimeter is the length of all the edges of the shape combined

A bag contains green tokens and black tokens. There are 24 green tokens in the bag. The ratio of green tokens to black tokens is 8 to 5. Find the number of black tokens in the bag.

Answers

I uploaded the answer to a file hosting. Here's link:

tinyurl.com/wpazsebu

What is the circumference of the circle shown below?

Answers

Answer:

A. 25.12 meters

..........

It is 50.24 you take the radius and multiply by two to get the diameter then you multiply that by pi-3.14 and you get the circumference

Hope this helps

equation - 2(x-2) + 3 (4x-1)=0​

Answers

Answer:

2(x-2) + 3 (4x-1) = 0​

x = 1/2

Find the geometric mean between 8 and 18. Write answer as a simplified radical. No Decimals!!!!

Answers

Answer: Therefore, the geometric mean of 8 and 18 is 12. Therefore, the geometric mean of 8 and 18 is 12.

Step-by-step explanation:

What are the domain and range of f(x) = 2|x – 4| + 3 ?

Answers

☁️ Answer ☁️

I think it's the second one.

Hope it helps.

Have a nice day hyung/noona!~ ￣▽￣❤️

Ratio 8 cups to 12 pints in simplest form

Answers

2:3 is the simplest form
2:3 i think is correct

can someone pls help me?? I’m so bad at math

Answers

Answer:

the first one is y=x-1/2 and the second one is y=-3x+1

Step-by-step explanation:

answer lol give brainleist

Answers

Answer:

16 bicycles and 21 tricycles

Step-by-step explanation:Both bicycles and tricycles have 1 set of handlebars. Bicycles have 2 wheels while tricycles have 3.

Using this information, set up a system of equations, where b is the number of bicycles and t is the number of tricycles:

b + t = 37

2b + 3t = 95

Solve by elimination by multiplying the top equation by -2:

-2b - 2t = -74

2b + 3t = 95

t = 21

Then, plug in 21 as t into one of the equations:

b + t = 37

b + 21 = 37

b = 16

So, there are 16 bicycles and 21 tricycles

How do I solve 1/2z=9 1/4?

Answers

Answer:

z = 9/2

Step-by-step explanation:

1/2z = 9 1/4?

z = 9/2

Explanation:

Simplify

9 x 1/4 → 9/4

Multiply 2 to both sides to cancel out the 2

1z = 9/4

Note: 1z is just z

Please help me with the question please ASAP ASAP

Answers

156

Especially since the shape is convex


Answer:

2340

Step-by-step explanation:

Since, the formula for finding sum of interior angles of a polygon is :

(n-2) × 180° [Where 'n' denotes number of sides]

Hence,

Sum of interior angles of a pentadecagon is ,

(15 - 2) × 180°

= 13 × 180°

= 2340°(Ans)

Please help me please please ASAP ASAP please ASAP

Answers

Answer:

46

Step-by-step explanation:

Take 8.

None of the equations work for 8.

Next, take 1.

None of the equations work for 1 either.

Third, take 15.

None of the equations work for 15 either.

Lastly, take 46.

The equations fit perfectly.

Hope that helps!

A pair of jeans is marked up 20% on the original price. The original price was $50. What is the sale price of the pair of jeans before sales tax?

Answers

Answer:

20% of $50 is $10. This means that the pair of jeans now cost $60 since it got marked up.

Step-by-step explanation:

Use a table to find (h-8)(h-9).

Answers

Well, I don’t see a table but your answer:

h^2-17x+72

Just use FOIL

Find the Selling Price.
Cost to store $90
Markup 100%
Selling Price:

Answers

Answer:

Selling Price= $180

Step-by-step explanation:

100%×90=90

90+90=180

What is the IQR (Inter Quartile Range
0, 21, 45, 3, 1, 5, 25

Answers

Answer:

Interquartile range = 24

Step-by-step explanation:

First we need to put the sequence in order from lowest to highest.

0, 1, 3, 5, 21, 25, 45

5 is the median and then from 5 to 0 we need to find the lowest interquartile in between it which is 1.

Highest interquartile from 5 to 45 finding the middle will be 25.

Interquartile range = highest interquartile - lowest quartile

25-1 = 24

75% of what number is 12

Answers

Answer:

16

Step-by-step explanation:

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