answer.
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
Burka [1]
2 years ago
5

Given the function f(x) = −5x2 − x + 20, find f(3).

Mathematics
2 answers:
Lera25 [3.4K]2 years ago
4 0

Answer: -28

given the function f(x) =-5x2 - x +20

find f(3)

lana66690 [7]2 years ago
3 0


f(x) = -5x^2 - x + 20;

f(3) = -5*3^2 - 3 + 20 = -5*9 - 3 + 20 = -45 - 3 + 20 = -28;

You might be interested in
An exterior angle of an isosceles triangle has measure 130°. Find two possible sets of measures for the angles of the triangle.
frozen [14]
(1) it can be both exterior of vertex or base. 180-130=50°
vertex is 50°:     base=(180-50)/2=65°
base is 50°:       vertex= 180-2*50=80°

vertex 50 base 65; vertex 80, base 50

(2)base=180-130=50°
vertex=180-2*50=80°

base 50 vertex 80
5 0
2 years ago
Anthony borrows $6.50 from a friend to pay for a sandwich and drink at lunch. Then he borrows $3.75 from his sister to pay a lib
Katen [24]

Money borrowed by Anthony from his friend for a sandwich and drink at lunch = $6.50

Money borrowed by Anthony from his sister to pay a library fine = $3.75

Hence, the equation to express Anthony's total debt that day will be =

Let T be the total debt , so the equations becomes,

6.50 + 3.75 = T

8 0
2 years ago
Read 3 more answers
The length of a rectangular rug is 4 feet less than twice its width. The perimeter of the rug is 40 feet. Write a system of equa
Brrunno [24]

Answer:

Step-by-step explanation:

L=2W-4

40=2L+2W

The first equation uses the information that the length of a rectangular rug is 4 feet less than twice its width.

The second equation is using your standard perimeter equation of 2L+2W=perimeter of a rectangle.

Hope this is helpful :)

6 0
2 years ago
If ce = 7x+4, find the value of x
Kryger [21]

Answer:

x = \frac{y}{7} - \frac{4}{7}

Step-by-step explanation:

Since it will be easier, just set "ce" as one term. Let ce = y

You are solving for the variable, x. Note the equal sign, what you do to one side, you do to the other.

Do the opposite of PEMDAS.

First, subtract 4 from both sides:

y = 7x + 4

y (-4) = 7x + 4 (-4)

y - 4 = 7x

Next, Divide 7 from both sides:

(y - 4)/7 = (7x)/7

(y - 4)/7 = x

x = (y/7) - (4/7)

Your value of x is \frac{y}{7} - \frac{4}{7}

~

4 0
2 years ago
Read 2 more answers
On a coordinate plane, a rectangle has points K prime (1, 3), L prime (2, 3), M prime (2, negative 3), N prime (1, negative 3).
Sidana [21]

Answer:

M(3,2) and N(3,1)

Step-by-step explanation

trust me

7 0
2 years ago
Other questions:
  • If a 100-lb. cake of ice is placed on a plane of which the inclination to the horizontal is 35, what force will be required to k
    10·1 answer
  • Factor
    13·2 answers
  • one of the world tallest roller coaster is in Blackpool, England. The maximum drop Is 65m over a horizontal distance of 65m in t
    9·1 answer
  • HELP PLEASE!! The cost to fill a car's tank with gas and get a car wash is a linear function of the capacity of the tank. The co
    5·2 answers
  • What type of triangle has side lengths of 4√5, √145 and 19?
    14·1 answer
  • What else would need to be congruent to show that STU is congruent to JKL by SAS? tysm! :)
    15·2 answers
  • Peter paid $79.80 for renting a tricycle for 6 hours. What was the rate per hour for renting the tricycle? (Input only numeric v
    13·2 answers
  • Sean and Mariana started drinking their slushies at the same time and tried to drink them as fast as they could.
    12·2 answers
  • In a car lot, the ratio of the number of new cars to the number of pre owned cars is 6 to 5. The total number of new and preowne
    11·1 answer
  • A supplier delivers an order for 20 electric toothbrushes to a store. By accident, three of the electric toothbrushes are defect
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!