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
taurus [48]
3 years ago
10

The function y = x2 – 4x + 7 approximates the height, y, of a bird, and its horizontal distance, x, as it flies from one fence

post to another. All distances are in feet. Complete the square to find and interpret the extreme value (vertex).
Select two answers: one extreme value and one interpretation.



A. Minimum at (4, 7)
B. When the bird is 4 feet away from the first fence post, it reaches its minimum height of 7 feet.
C. When the bird is 2 feet away from the first fence post, it reaches its minimum height of 3 feet.
D. Minimum at (2, 3)
Mathematics
2 answers:
Salsk061 [2.6K]3 years ago
7 0
From the function y=x^2-4x+7
to complete the square we proceed as follows:
The vertex form is given by:
y=(x-h)^2+k
where (h,k) is the vertex:
thus from the function we shall have:
y=x^2-4x+7
c=(b/2a)²
c=(4/2)²=4
thus adding an subtracting 4 in the expression:
y=x^2-4x+4-4+7
y=(x-2)^2+3
thus the vertex will be:
(2,3)

The answer is:
<span>D. Minimum at (2, 3)</span>
iVinArrow [24]3 years ago
5 0

D and C is also the right answer..

You might be interested in
I NEED HELP PLEASE !!!
murzikaleks [220]

Answer:

The answer is 1.

Step-by-step explanation:

8 0
3 years ago
Can someone explain this for me??<br> 4 (c+2) &lt; 4c + 10
faust18 [17]

Answer:

The inequality would be true

Step-by-step explanation:

4(c+2) < 4c + 10

Distribute the 4 on the left

4c + 8 < 4c + 10

Subtract 4c from both sides

8 < 10

8 < 10 is true

7 0
3 years ago
Joe takes out a loan for $19,000. He will pay the loan back monthly. The interest rate is 7.6% per year and the length of the lo
Y_Kistochka [10]
I believe it should be 8,000
6 0
2 years ago
Help Me Please (30 Points) + Brainliset Answer
Pani-rosa [81]
Each of 4 friends has 2 balloons
4 x 2 = 8

herself has one

so 8 + 1 = 9

answer: Total 9  balloons
8 0
3 years ago
Read 2 more answers
What's (7x/2-5x+3)+(2x/2+4x-6)
Anika [276]
I'm assuming that when you wrote "(7x/2-5x+3)+(2x/2+4x-6)," you actually meant "<span>(7x^2-5x+3)+(2x^2+4x-6).  Correct me if I'm wrong here.

</span><span>+(7x^2-5x+3)
</span><span>+(2x/2+4x-6)
-------------------
=9x^2 - x - 3 (answer) </span>
5 0
3 years ago
Other questions:
  • ok so I need help on this question. How would you evaluate this expression, -8x + 5 -2x - 4 + 5x when x=2. How would you write t
    5·1 answer
  • How do you subtract a positive fraction from a negative fraction?
    6·1 answer
  • What is the maximum and minimum value of the correlation coefficient? 1 and -1 2 and 3 0 and -1 0 and 1 2 and -2
    9·1 answer
  • Evan is landscaping his backyard. The yard is shaped like a rectangle and measures 80 feet by 70 feet. He wants to spread topsoi
    9·1 answer
  • Which property of equality would be used to solve the equation -3x = 252?
    14·1 answer
  • The numbber 14 is less than the number of hours nathans volleyball team trains in a week which of the follwoing inequalities rep
    11·1 answer
  • Hellppppppppppppppppppppppppp
    13·1 answer
  • There is a circle with a diameter of 3. Round to nearest tenth!
    5·1 answer
  • Name the point or points from the coordinate grid which fit each description.
    13·1 answer
  • Soccer players are expected to congratulate and shake hands with the opponent team, even when their team loses the game. This be
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!