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
Marina86 [1]
3 years ago
15

If f(x) = -2x^2 + 3 then f(-5) = ??

Mathematics
1 answer:
Sladkaya [172]3 years ago
5 0

F(-5)= -2x^2+3

-5*-5=25

25*-2=-50

F=-50+3

F=-47

You might be interested in
A rectangular plot of land that contains 1500 square meters will be fenced and divided into two equal portions by an additional
photoshop1234 [79]
Let the length be x and the width be w

The perimeter will be:
2x+3w=1500

thus
3w=(1500-2x)
w=(1500-2x)/3
w=500-2/3x

The area will be:
A=x*w
A=x(500-2/3x)
A=500x-(2/3)x²

The above is a quadratic equation; thus finding the axis of symmetry we will evaluate for the value of x that will give us maximum area.

Axis of symmetry:
x=-b/(2a)
from our equation:
a=(-2/3) and b=500
thus
x=-500/[2(-2/3)]
x=375
the length will be 375 m

The width will be 250 m

4 0
3 years ago
20186<br> What is the answer
Wewaii [24]

Answer:

is that a real eqasion??

Step-by-step explanation:

20186

7 0
3 years ago
Read 2 more answers
Anyone want to f riend me or cha t here
vovangra [49]

Answer:

yes

Step-by-step explanation:

yes I want ☺️☺️☺️☺️☺️☺️

7 0
3 years ago
Read 2 more answers
Raquel and Van live in two different cities. As part of a project, they each record the lowest prices for a gallon of gas at gas
Sphinxa [80]
The standard deviation shows the dispersion (how close) of the data. Therefore the correct statement is A:
<span>A- Raquel’s data are most likely closer to $3.42 than Van’s data are to $3.78.</span>
5 0
4 years ago
Read 2 more answers
Find the indicated side of the triangle.<br> 10<br> b<br> 45°<br> a<br> b =
Korvikt [17]

Answer:

Step-by-step explanation:

a = b

Pythagorean Theorem:

b = 10/√2

6 0
3 years ago
Other questions:
  • You're flying from Joint Base Lewis-McChord (JBLM) to an undisclosed location 125 km south and 135 km east. Mt. Rainier is locat
    12·1 answer
  • I need to evaluate <br><img src="https://tex.z-dn.net/?f=12%20%5Ctimes%20%283%20%2B%20%20%7B2%7D%5E%7B2%7D%20%29%20%5Cdiv%202%20
    10·2 answers
  • 10.77 times .08 plus 10.77
    7·2 answers
  • Which one is better.
    15·2 answers
  • A photographer records the amount he changes his shutter speed for each photo he takes. The changes are -1.5,1 1/8 ,3/5 and 1.4.
    6·1 answer
  • Solve this 6r+7=13+7r
    14·2 answers
  • The total cost c for p pounds of copper if each pound costs 3.57
    9·1 answer
  • What does m2+ m3= ???????????
    10·1 answer
  • Ayuda ¿10 y 12 son divisibles por?
    10·2 answers
  • ASAP PLEASE!!!!!!!!!!!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!