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
Advocard [28]
4 years ago
14

What is the domain and range for the function f(x) = x2 + 4x - 21?

Mathematics
1 answer:
bezimeni [28]4 years ago
3 0

Answer:

Domain: (−∞,∞),{x|x∈R}

Range: [−25,∞),{y|y≥−25}



You might be interested in
A dealer sold a car to a man and made
fenix001 [56]

Answer:

<u>110.000</u>

<u></u>

Step-by-step explanation:

Selling at a loss of 5% means it was sold for 95% of its purchase value.

If 120.175 equals to 95% then 100%(the purchase value) is 126.500.

120.175/95*100 = 126.500 (plenty of other ways to calculate this, but this is one of the easiest)

So now we change to the dealer's perspective, he sold the car for 126.500 and for him that meant a 15% profit. If the purchase value is 100%, then the sale value is 115% (purchase value+15% profit)

Calculate the purchase value:

126.500/115*100 = 110.000

The dealer bought the car for 110.000, sold it for 126.500, so he made a profit of 16.500 (126.500-110.000) which is a 15% profit (15% of 110.000 is 16.500).

5 0
3 years ago
Traveling from Atlanta Georgia to Orlando Florida is about 550 miles Jen travel 338 miles yesterday and, the rest today write an
Semenov [28]
The answer is 212 because you subtract 550-338 equaling 212
4 0
3 years ago
A line passes through the point (2, -9) and has a slope of -9. Write an equation in point-slope form for this line.
Natali [406]

Answer:

y+9 = - 9x +18

Step-by-step explanation:

Line is passing through the point (2,\: - 9) =(x_1,\:y_1) and has slope (m) = - 9

General equation of line in point slope form is given as:

y-y_1 = m(x-x_1)

Therefore

y-(-9) = - 9(x-2)

y+9 = - 9x +18

This is the required equation of line in point slope form.

4 0
3 years ago
URGENT !!!!!! Please answer correctly !!!!! Will be marking Brianliest !!!!!!!!!!!!!
Ganezh [65]
(6,-7)
This is because if the midpoint to one endpoint goes right 1 and up 5, then the other endpoint will be left 1 and down 5
3 0
3 years ago
Convert 7 meters per minute to yards per hour round to the nearest 10
Aneli [31]
It should be 459.318.
5 0
3 years ago
Read 2 more answers
Other questions:
  • D. The sum of two numbers is 30 and the difference of these numbers is 6.
    12·1 answer
  • Can someone do this for me please???? i need it done fast!!
    14·1 answer
  • when the input to a function is -2, the out put is 4. Which statement about this function must be true
    12·1 answer
  • Solve the following system of equations by substitution and select the correct answer below:
    13·2 answers
  • The length of a rectangle is 3x-5 and the width of the rectangle is 2x+7. Find the perimeter.
    15·1 answer
  • Tyra's kitchen is 42 m wide and 6.3 m long. She is pasting a decorative border strip that costs $5.95 per meter around the top e
    7·1 answer
  • Could anyone help me? this is hard i dont understand
    13·1 answer
  • Ill give you brainliest if you answer this question!​
    15·1 answer
  • Add the given polynomial and show your solution.​
    10·1 answer
  • Mr. Romero is buying a cell phone that has a regular price of $649. The cell phone is on sale for 15% off the regular price. Wha
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!