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
Verdich [7]
3 years ago
13

PLEASE HELP I AM GIVING 15 POINTS INSTEAD OF FIVE FOR ANSWERING PLEASSSEEE HEEEEELLLP

Mathematics
1 answer:
mr_godi [17]3 years ago
5 0

Answer:

Third Choice:

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

Step-by-step explanation:

One line has

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

The next line's reason is that b/2a was subtracted from both sides.

The missing line is:

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

Then it simplifies to

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

You might be interested in
Which of the following is an example of natural selection?
SVETLANKA909090 [29]

Answer:

A) Hummingbirds drinking nectar from a plant.

Step-by-step explanation:

Here are some examples of natural selection: In a habitat there are red bugs and green bugs. The birds prefer the taste of the red bugs, so soon there are many green bugs and few red bugs. The green bugs reproduce and make more green bugs and eventually there are no more red bugs.

4 0
2 years ago
What is 7^{6} (seven to the sixth power) Please Help!
Jet001 [13]

Answer: 117,649

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Questions 2 & 4 please help me
Andreas93 [3]
2. He can break his strand of 10 blocks into 3 3 times 4. I think it is 74 blocks are needed.
4 0
3 years ago
Simplify the expression 3/4÷-5/6
Natalka [10]

Answer: the answer to this is 9/10

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
80 is 50% of what number
KonstantinChe [14]

Answer:

80 is 50% of 160.

Step-by-step explanation:

In order to find this, we take the whole number and divide by the percentage that it represents. This gives us the number we are looking for.

80/50%

80/.50

160

3 0
3 years ago
Read 2 more answers
Other questions:
  • Interest earned $837
    13·1 answer
  • A sample of marble has a volume of 6 cm3 and a density of 2.76 g/cm3. What is its mass?
    13·2 answers
  • A musician plans to perform 6 selections. in how many ways can she arrange the musical selections?
    12·2 answers
  • What is the total weight, in pounds, of 100 sharks that each weigh 5.015× 10 (to the 3rd power) pounds
    5·1 answer
  • Each year, roughly 10^6 computer programmers each make $10^5. How much money is this all together? Express your answer both as a
    11·1 answer
  • Describe how the effective rate of interest of a money market or CD account can be calculated
    9·1 answer
  • Explain please with details
    12·1 answer
  • Elisa bought a car for $12,000 ten years ago. It has depreciated at a rate of 9% per year since she bought it. Write an expressi
    12·1 answer
  • Which of the following equations is equivalent to 36 – 2 = 34? 34 ∙ 2 = 36 34 + 2 = 36 36 + 34 = 2 34 – 2 = 36
    5·1 answer
  • 7. Sid has a board that is 8 5/6
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!