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
Lelechka [254]
3 years ago
13

What is the focus of the parabola given by the equation y = x2 − 2x − 3?

Biology
2 answers:
bogdanovich [222]3 years ago
5 0
For the equation y = a(x - h)^2 + k, the vertex is at (h, k), and the focus is at (h, k + 1/4a).
We first complete the square of the equation:
y = x^2 - 2x - 3
y = (x - 1)^2 - 4
Following this format, a = 1, h = 1, k = -4.
Then the vertex is at (1, -4), and the focus is at (1, -4 + 1/(4*1)) which is (1, -15/4).
Arte-miy333 [17]3 years ago
5 0

Answer:

E.) (1,-\frac{15}{4}

Explanation:

You might be interested in
This DNA molecule is replicating - write a complimentary strand to this template TAC GGG CAG CAT AAA ATC​
Firdavs [7]

Answer: The complimentary strand will read ATG CCC GTC GTA TTT TAG

Explanation:

The complimentary strand to the replicating DNA molecule is known as messenger RNA (mRNA).

The mRNA directs specific bases to pair the existing base on the replicating DNA strand:

- Adenine (A) pairs only with Thymine (T)

- Guanine (G) pairs only with Cytosine (C)

So, to obtain the complimentary strand of TAC GGG CAG CAT AAA ATC​, substitute each letter with its base pair.

Thus, the complimentary strand will read ATG CCC GTC GTA TTT TAG

3 0
3 years ago
Can someone help me with this question and explain why that answer is right?
bazaltina [42]
I think can be D or A
4 0
3 years ago
A new mutation arises in one person on the island of Kiribati (human population size 100,000). Assuming this particular mutation
tatuchka [14]

Answer:

0.999999 ≈ 1

Explanation:

In a population ( N ) there is the presence of 2N alleles in the population also chance of fixation can be expressed as ; 1/ 2N

Therefore the probability that the mutation will be lost due to genetic drift

= 2N - 1 / 2N ---- ( 1 )

given that ; N = 100,000

back to equation 1

P ( losing mutation due to genetic drift ) = ((2*100,000) - 1 )) / ( 2* 100,000 )

= ( 200,000 - 1 ) / 200,000

= 0.999999 ≈ 1

5 0
2 years ago
Which of the following is not true of passive transport?
Bezzdna [24]

Answer:

Its C I had the same question and got it right

6 0
3 years ago
Read 2 more answers
How often does necrotizing fasciitis evolve?<br><br><br> PLEASE HURRY!
Akimi4 [234]
Even with treatment, up to 1 in 3 people with necrotizing fasciitis die from the infection. Six out of every 10 people who get both necrotizing fasciitis and streptococcal toxic shock syndrome at the same time die from their infection
3 0
3 years ago
Other questions:
  • The graph below shows the light absorbance of two kinds of chlorophyll. mc007-1.jpg Which color of light does chlorophyll b abso
    5·1 answer
  • In the 1960s the theory of plate tectonics was further developed through advancement and the study of
    12·2 answers
  • Which of the following is not an accurate description of chemical reactions?
    7·1 answer
  • What Are animals that eat dead animals remains
    7·1 answer
  • How are the male penguin trying to attract gloria?
    5·2 answers
  • 3. The number of annual rings in trees growing in temperate climates corresponds to the age of the trees. Scientists use tree ri
    12·1 answer
  • What was the 1st life on Earth called
    11·1 answer
  • Punnet squares help Fill in the Punnett square for breeding a female chocolate lab (bbEE) with a male black lab (BbEE). bE bE bE
    12·2 answers
  • _______ occurs when the causative virus, which is strongly teratogenic, is transmitted to the fetus in utero; it can subsequentl
    14·1 answer
  • You ate a chicken sandwich with a lettuce salad. Explain how the end- products of the digestion of your meal are utilized in the
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!