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
mario62 [17]
3 years ago
8

1.) What is the vertex of the quadratic function y=x^2-4x-1

Mathematics
1 answer:
Serjik [45]3 years ago
4 0
1.  Solve by differentiation (Derivative = 0 at the vertex)

dy/dx= 2x-4

0=2x-4

0=2(x-2)

x=2

when x=2 y=-5

therefore vertex (2,-5)

You might be interested in
What is the green dashed line called?
lisov135 [29]

Answer:

axis of symetry

Step-by-step explanation:

Beast_Building on yt

6 0
3 years ago
Solve for x
Anon25 [30]

Answer:

3. x = y - 3

Step-by-step explanation:

You want to move all numbers on the same side of x to the other side with y. Whenever doing this, we have to reverse the operation. In this problem, we have + 3 with x. So we will need to subtract 3 from both sides.

x + 3 = y

x = y - 3

6 0
3 years ago
Estimate 864/54 by first rounding each number so that it has only 1 nonzero digit.
KiRa [710]

Answer:

18

Step-by-step explanation:

6 0
2 years ago
What is subjective?? (Science)
natita [175]

Answer:

Hypotheses are always made by one individual or by a limited group of scientists, and are therefore subjective—based on the prior experience and processes of reason employed by those individuals, rather than solely on objective external process. 

According to this view, human attitude is associated with human sciences; but as far as natural science is concerned there is no scope for any subjective elements. Scientific knowledge is purely objective, and it is an objective description of the real structure of the world.

Step-by-step explanation:

Pertaining to or characteristic of an individual; personal; individual: a subjective evaluation.

Phrase collocation :

  1. subjective idealism
  2. subjective test
  3. subjective brightness

Bilingual example Used as an adjective (adj.) :

  1. Whatever is subjective in you, is the truth.
  2. The answer is not easy and, in this case, it is largely subjective .
  3. Marxism is not true and is not science, but so what? The hermeneuticians tell us that nothing is objectively true, and therefore that all views and propositions are subjective.
  4. His arguments were never subjective.
  5. He took a subjective view of the problem.
  6. Grading of oral tests is quite subjective.
4 0
3 years ago
A machine has 11 identical components which function independently. the probability that a component will fail is 0.2. the machi
Feliz [49]
The probability of 3 failures or less is about 0.83886, so that is the probability the machine will be working.

8 0
3 years ago
Other questions:
  • find the measure of the vertex anlge of an isosceles triangle if the measure of one base angle is 36°
    14·1 answer
  • A number is equal to twice a smaller number plus 3. The same number is equal to twice the sum of the smaller number and 1. How m
    8·2 answers
  • Which system of equations can be used to find the roots of the equation 4x^2=x^3+2x?
    11·2 answers
  • A color called “shocking pink” is made by mixing red paint with white paint. The ratio of red to white is 2 to 7. How much red p
    8·1 answer
  • One last question, I really need help
    12·2 answers
  • How do i solve this problem?
    9·1 answer
  • Help please will give brainiest
    10·1 answer
  • Darius buys a bottle of a chemical solution that contains 70% percent alcohol. The bottle contains 500 milliliters of solution.
    7·1 answer
  • Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
    13·2 answers
  • Which numbers are perfect squares? Check all that apply. 02 016 018 032 0 044 094 100​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!