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
dusya [7]
3 years ago
5

PLEASE EXPLAIN: h(x) = sqrt(4-x^2), find the domain and range.

Mathematics
1 answer:
Elis [28]3 years ago
8 0
H(x), or the range of this function, must be y >= 0, as you can never get a negative when square rooting any number.

For the domain, x cannot exceed -2 or 2, as this would mean we'd be finding the square root of a negative number, which can't happen without getting in to imaginary numbers. Thus, the domain must be -2 <= x <= 2.
You might be interested in
Help Pls I need the answer to t<br><br><img src="https://tex.z-dn.net/?f=0%3D-16t%5E2%2B704t" id="TexFormula1" title="0=-16t^2+7
Xelga [282]

Answer:

t=0 or t=44

Step-by-step explanation:

There are a few methods to do this, the most obvious being the use of the quadratic formula.

However, a quick check with a calculator or even your mind will reveal that 704 is divisible by 16. Thus we can solve this through factoring.

-16t(t-44)=0

Using the zero factor principle:

-16t=0 and so t=0

t-44=0 and so t=44

And thus we get the solution.

7 0
3 years ago
Factor the following by completing the square w^4-22w^2+9
algol [13]

Answer:

(w² - 4w - 3) (w² + 4w - 3)

Step-by-step explanation:

w² + 4w³ - 3w² -4w³ - 16w² + 12w-3w² - 12w + 9

3 0
3 years ago
Fatima wants you to show her some numbers other than pie that are real but not rational what would you show her?
EastWind [94]
REAL BUT NOT RATIONAL :
square root of 2
the golden ratio : 1.618033.....non terminating
square root of 99
8 0
3 years ago
Brainlist queston plz help me plz Write the explicit formula for the arithmetic sequence with f(89) = -481.4 and f(126) = -677.5
larisa [96]

The answer is... Hope this helped

3 0
3 years ago
Im stuck on this question, plz help
denis-greek [22]

Answer:

Kindly check explanation

Step-by-step explanation:

Given the following :

40 metres covered in 6 seconds

Max speed attained after 6seconds

75 meters covered after 11 seconds

Average Speed for first 40 meters :

Speed = distance / time

Speed = 40m / 6s

Speed = 6.67m/s

To obtain the maximum speed :

Next (75 - 40) meters = 35 meters was covered in (11 - 6)seconds = 5 seconds

Speed at this point is maximum :

Hence, maximum speed = (35m / 5s) = 7m/s

Suppose, Manuel runs for an additional z seconds after reaching max speed :

Distance from starting line 6+z seconds after race started?

Distance after 6 seconds = 40 metres

Distance after z seconds = 7 * z

Total distance = (40 + 7z)

What is Manuel's distance from the starting line x seconds after the race started (provided x≥6x)?

Distance for first 6 seconds = 40 meters + distance covered after 6 seconds = (7 * (x-6))

40 + 7(x - 6)

3 0
3 years ago
Other questions:
  • A student determined that the area of the segment of shown above is Asegment = 137.71 ft2. The student's work is shown below. Ev
    7·1 answer
  • If the diameter of the circle is 11 inches, then the radius will be _____ inches.
    8·2 answers
  • What is the value 1/2 ×3+5.2y when x=2 and y=3
    7·2 answers
  • What is the solution of the inequality x+5&lt;533?
    13·1 answer
  • What is the volume of the cylinder? Express the answer in terms of .
    7·2 answers
  • Use the given nth term formula to compute the first five terms of the sequence.<br> an = 8n^2 − 4n
    14·1 answer
  • A 30 foot board is cut into two pieces.how long is each piece if the second piece is 3 feet longer than twice the first piece
    11·2 answers
  • What's an easy way to remember integers​
    15·2 answers
  • S(-4,-6) and T (-7,-3); Find R
    13·1 answer
  • Consider a triangle ABC like the one below. Suppose that a = 42, b=44, and c= 52. (The figure is not drawn to scale.) Solve the
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!