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
PSYCHO15rus [73]
2 years ago
13

F(x)=-x^2-4 for x= -3

Mathematics
1 answer:
san4es73 [151]2 years ago
6 0

Answer:

  • 5

Step-by-step explanation:

<u>Given:</u>

  • f(x)=-x²-4

<u>Substitute x= -3:</u>

  • f(-3) = (-3)² - 4 = 9 - 4 = 5
You might be interested in
The diameter of Circle Q terminates on the circumference of the circle at (3,0) and (3,-7) . Write the equation of the circle in
Deffense [45]

Step-by-step explanation:

The center of a circle with 2 end points of a di diameter is the midpoint of the two endpoints.

The formula needed to find the minpoints is

(x,y) = (x2 + x1)/2, (y2 + y1)/2

x2 = 3

x1 = 3

y2 = 0

y1 = -7

midpoint = (3 + 3)/2, (0 - 7)/2

midp[oint = 3,-3.5

The midpoint is the center of the circle. Observe that the signs get changed when entering the values for (x,y)

So far what you have is (x - 3)^2 + (y + 3.5)^2 = r^2

To determine r^2 you need only take the distance from the center to oneof the endpoints.

r^2 = (3 - 3)^2 + (3.5 - 0)^2

r^2 = 3.5^2

r^2 = 12.25

Answer: (x - 3)^2 + (y + 3.5)^2 = 12.25

6 0
2 years ago
Need help with what the answer to this question is
levacccp [35]
The answer is C
C has units of Markers / Markers on the left and Money over an unknown which represents money.

None of the others (D) is incorrect, because we've already chosen C.

A is not because.you have the wrong amount of money divided by the larger number of makers. 

B does not work because the right is markers divided by money. The left had side will have money divided by markers. It won't work. The safest way to  these questions up is to keep the knows on the left and put the unknown on the left with the number it is associated with.
Let's see why the others don't work.

5 0
3 years ago
Assume that two figures on a flat surface, A and B, are similar.
lawyer [7]
A.     ratio of areas = 2^2 /5^2 = 4/25

B    14^2 : 1 = 196:1

C.  ratio of perimeters would be  sqrt81 = 9 times
5 0
3 years ago
The sum of two consecutive integers is 77. Find the integers.
SIZIF [17.4K]

Answer:

38 and 39

Step-by-step explanation:

Since the two integers are consecutive, then one is one larger than the other. Therefore, lets call them x and x+1. We can now set up the following equation:

x+(x+1)=77

2x+1=77

2x=76

x=38

x+1=39

Hope this helps!

5 0
3 years ago
Read 2 more answers
Determine the direction that this parabola<br> opens:<br> y = -5x2 - 10x - 13
Pie

Answer:

sorry cant :(

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • What is 0.03÷558 ? With the steps
    15·1 answer
  • Need help finding D=___
    13·1 answer
  • Marlon asks a friend to think of a number from 5 to 11. What is the probability that Marlon’s friend will think of the number 9?
    15·1 answer
  • explain how to use the missing pieces strategy to compare two fractions include a diagram with your explanation
    9·1 answer
  • Factor each expression 32+16x
    9·2 answers
  • Lauren spent 3/5 of her money on a refrigerator. The refrigerator cost $756. How much money did she have left?
    7·1 answer
  • Plz plz plz help me quickly I’ll give brainlist!!!!!!!!!!plz!!!!
    14·1 answer
  • Which expression is equivalent to 2(3x + 4y + x)?
    5·1 answer
  • Help pls :) 10 points
    12·1 answer
  • Im so tired i cannot right now lol<br>so help pls ​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!