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
MAXImum [283]
3 years ago
8

6. If f(x) = -2r2 + x-5, what is f(3)?

Mathematics
1 answer:
ExtremeBDS [4]3 years ago
3 0

Answer:

Step-by-step explanation:

You might be interested in
Analyze the graph below and answer the question that follows. / What is the angle of rotation from RST to R'S'T' ? Assume that t
liberstina [14]

Answer:

C

Step-by-step explanation:

This could be either 90° counterclockwise or 270° clockwise but the latter is not an option so the answer is C.

6 0
3 years ago
A carnival charges two different prices for admissions. Adults cost $4 while children cost $1.50. If a total of $5050 was collec
GenaCL600 [577]

Answer:

Step-by-step explanation:

We have to have 2 different equations to solve this.  One equation will represent the number of tickets sold while the other represents the money collected when the tickets were sold.

We know that adult tickets + children tickets = 2200 tickets.

That's the "number of tickets" equation.  Let's call adult tickets "a" and children's tickets "c".  So a + c = 2200

Now if each adult costs $4, then the expression that represents that as a cost is 4a.  If there is 1 adult, the cost is $4(1) = $4; if there are 2 adults, the cost is $4(2) = $8; if there are 3 adults, the cost is $4(3) = $12, etc.

The same goes for the children's tickets.  If each child's ticket is $1.50, then the expression that represents the cost of a child's ticket is 1.5c (we don't need the 0 at the end; it doesn't change anything to drop it off).  The total money brought in from the cost of these tickets was $5050, so

4a + 1.5c = 5050

Let's solve the first equation for a.  If a + c = 2200, then a = 2200 - c.  Sub that into the second equation and solve it for c:

4(2200 - c) + 1.5c = 5050 and

8800 - 4c + 1.5c = 5050 and

-2.5c = -3750 so

c = 1500

That means that there were 1500 children's tickets sold.  If a + c = 2200, then a + 1500 = 2200 so

a = 2200 - 1500 so

a = 700

There were 1500 children's tickets sold and 700 adult tickets sold.

7 0
3 years ago
Martin's test scores are 84, 72, 94, 83, and 61. What is the range of the test scores?
sammy [17]

Answer:

33.

Step-by-step explanation:

In order to find range, you must subtract the largest amount given by the smallest amount. In this case, it would be 94-61=33.

5 0
3 years ago
The sides of a triangle measure 10 feet, 13 feet, and 17 feet.
yuradex [85]
A right triangles hypotenuse is the square root of both of the other side squared. The formula for this is a^2 + b^2= c^2, with c being the longest side. So 10 squared is 100, 13 squared is 169, but. 17 squared is 289. The sum of the other two sides are 269. So it doesn’t equal
3 0
1 year ago
Read 2 more answers
HElp ! Its A Math Problem! How Can I solve This Math Problem
svet-max [94.6K]

Answer:

Step-by-step explanation:

8 0
2 years ago
Other questions:
  • Find AB if BC = 4, BD = 5, and AD = 2.
    11·1 answer
  • Please give me some help with this question.
    15·1 answer
  • Find the x-intercepts of the parabola with vertex (1,1) and y-intercept (0,-3). Write your answer in this form (x of 1 , y of 1)
    7·1 answer
  • 10x -2y = 10 in slope intercept form
    5·1 answer
  • Show work and explain with formulas.
    6·1 answer
  • Pls pls pls pls pls pls pls pls HELP
    9·2 answers
  • Martha works on a farm. She can pick 122 pounds of strawberries a day. She gets
    5·1 answer
  • Need answer Immediately!!!!!!
    7·1 answer
  • Emilio drew a line that is modeled by the equation y-4=3(x-2) what is the slope of the line?
    11·1 answer
  • I really need help with this is u answer it correct i can give u the crown .
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!