1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ArbitrLikvidat [17]
3 years ago
11

A portion of the Quadratic Formula proof is shown. Fill in the missing statement.

Mathematics
1 answer:
Zielflug [23.3K]3 years ago
4 0

Answer:

Option A.

Step-by-step explanation:

we have

x+\frac{b}{2a} =\pm\sqrt{\frac{b^2-4ac}{4a^2}}

Simplify the right side of the equation

we know that

\pm\sqrt{\frac{b^2-4ac}{4a^2}}=\pm\frac{\sqrt{b^2-4ac}}{\sqrt{4a^2}}=\pm\frac{\sqrt{b^2-4ac}}{2a}

so

The expression is

x+\frac{b}{2a}=\pm\frac{\sqrt{b^2-4ac}}{2a}

therefore

x plus b over 2 times a equals plus or minus the square root of b squared minus 4 times a times c, all over 2 times a

You might be interested in
Martina is 3 inches less then twice as tall as her little brother.
scoundrel [369]

The equation to this would be:

2t - 3 = Martina's height

Hope this help's you! Happy thanksgiving, here's a turkey!

5 0
3 years ago
What does -4x+7=11 equal ?
viktelen [127]
-7 to make 4 so -4x=4 x=-1

The answer is x=-1

Hope this helps:)
6 0
3 years ago
Read 2 more answers
Collin is building a deck on the back of his house. He has enough lumber for the deck to be 144 square feet. The length should b
joja [24]
Width = x
length = x+10

Area of deck = 144 square feet

Area = length * width

144 = x(x+10)

Solving for x in a quadratic:

x²+10x = 144
x²+10x-144 = 0

Factor:
(x+18)(x-8) = 0

Solving for x:
x = 8, x = -18

Dimensions cannot be negative, therefore x = 8, only.

Length = x + 10
Length = 18

Width = 8
4 0
3 years ago
330,000 write using Scientific Notation.
Greeley [361]
330,000=3.3*100,000=3.3*10^{5}

the first number must be between 1 and 10 (here is 3.3)
the power (here is 5) is an integer exponent of 10 that indicates how many places the decimal point must be moved to make equation true

Greetings, 
n00nst00p :)
3 0
3 years ago
Read 2 more answers
I need help with this question!
ki77a [65]

Answer:

A

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • PLEASE HELP!!! Compare the two groups of data. Which BEST describes the data? A) the spread of data for boys is 2 centimeters gr
    7·2 answers
  • PLEASE PLEASE PLEASE PLEASE PLEASE HELP! ANSWER WORTH 25 POINTS! I need answers ASAP!
    6·1 answer
  • 1
    12·1 answer
  • Write an equation in point-slope form of the line having the given slope that contains the given point.
    15·1 answer
  • a small inflatable pool holds 10 gallons of water. a tiny leak causes the amount of water in the pool to change by -0.05 gallon
    12·2 answers
  • Please help solve<br> |-6y+3|=4|y-2|
    12·1 answer
  • Three inches of snow fell on Monday and 5 inches fell on Wednesday. Which number is the additive inverse of the amount of snow t
    11·1 answer
  • HELP !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    13·1 answer
  • You borrowed $4500.00 at 9.5% for 6 years, what amount would you pay in interest? ​
    11·1 answer
  • Solve for d.<br> 41 = 12 d _ 7<br> d
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!