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
Ber [7]
3 years ago
8

F(x)=-x^2-5 find the range

Mathematics
1 answer:
lina2011 [118]3 years ago
4 0

x =  \frac{ - b}{2a}  \\  =   \frac{0}{2(1)}  = 0 \\ f(0) = (0)^{2}  - 5 \\  = 0 - 5 =  - 5
The vertex is at (0,-5), therefore the range goes from (-infinity, - 5]
You might be interested in
A cylinder is sliced horizontally, parallel to its base, and vertically. Which of the following could represent cross sections o
Misha Larkins [42]

C- CIRCLE AND RECTANGLE!

(~ ̄³ ̄)~( ˘ ³˘)♥

5 0
3 years ago
Read 2 more answers
Find the vertex, focus, directrix, and focal width of the parabola. negative 1 divided by 40 x squared equals y
Galina-37 [17]

Answer:

2, 8, 90, 160

that is the focal, vertex l, direction

5 0
3 years ago
Does anyone understand 1 or 2? Please answer
telo118 [61]

Answer:

See below

Step-by-step explanation:

You need to create an equation that will give you the results with the correct units of measurement that they are asking for.  In the first question, they are asking you to give the answer in seconds.  So when you set up your equation, seconds have to be on the top.  The way to think of this is to actually reword the statement they give you by saying in 1 second, light travels 3 x 10 to the 8th power which is 3 with 8 zeros after it.  Then it's easier to set up the equation as below.  The distance from the Sun to Mars is 230,000,000,000 meters which is the same as saying 2300 x 10 to the 8th power.  Notice I counted 8 of the zeros and used that in the exponent but left the rest as part of the original number.  This will make it easier since you are dealing with two number that have exponents raised to the same power of 8.

   1 sec          2300 x 10⁸ m

--------------  X  --------------------  =

 3 x 10⁸ m             1

When you look at this equation it looks difficult but since both the top number and bottom number are exponents raised to the same power, they cancel each other out.  So you can drop the exponent all together and just divide the top number by the bottom number  2300 ÷ 3 which equals 766 seconds.

The second question needs you to take the distant the Sun is from Earth and subtract that from the distance from the Sun to Mars.  By subtracting those two, it will tell you how far Mars is from the Earth.  You can change the numbers a little bit to make it easier on you.  Again you want the exponent for both numbers to be the same to make it easier.  When you subtract two number with the exact same exponent, you can just subtract the number and then use that same exponent as part of your answer.

The distance between the Sun and Mars is 23 with 10 zeros after it.  So that is the same as writing 23 x 10¹⁰.  The distance from the Sun to Earth is said to be 1.5 x 10¹¹ but that is a different exponent.  So if you move the decimal on this number one place to the right, it will be 15 x 10¹⁰.  Now you can easily subtract those numbers without worrying about the exponent since they are the same.

23-15 =8  but now you have to put the exponent back on.  So your answer ends up being

8 x 10¹⁰  or 8 with 10 zeros or 80,000,000,000 meters.

8 0
2 years ago
. what is the difference between these 16 degrees farenheit and -15 degrees farenheit
Ivahew [28]

Answer:

The answer 1 degrees Fahrenheit because you have to subtract 16-15. I subtracted 16-15 instead of putting the negative sign

7 0
3 years ago
A hot air balloon is at elevation of 650 feet. After it descends 120 feet, what is the elevation of the balloon?
SVETLANKA909090 [29]

Answer:

530

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Other questions:
  • With this one I need help with "" please
    11·1 answer
  • Point H is the incenter of triangle ABC. Find BD. a. 7.5<br> b. 8.5<br> c. 9.2<br> d. 9.7
    6·2 answers
  • Need answer ASAP PLS
    13·2 answers
  • <img src="https://tex.z-dn.net/?f=%20%7B40a%7D%5E%7B2%7D%20%20%2B%2020a%20-%2030%20%3D%20%28%20-%201%29%28%20%20%7B15a%7D%5E%7B3
    10·1 answer
  • Answer for brainliest!
    14·2 answers
  • James walked 15 blocks. she stopped at the store 3/5 of the way into her walk. how many blocks did she walk to the store? ​
    5·2 answers
  • Solve this problem: <br> 5X +8 = 53
    7·2 answers
  • Equation C: a = 4b + 5 Equation D: a = 6b − 2 What value of a can be substituted into equation D to solve the system of equation
    14·2 answers
  • What is the greatest decimal in hundredths that can be rounded to 14.5? What is the least​
    5·1 answer
  • Find the value of X round to the nearest 10th law of cosines.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!