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
Alexandra [31]
3 years ago
11

Find f(3) if f(x) = 2x^2+x

Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
4 0

Answer:

39

Step-by-step explanation:

plug in 3 for all of the x values

You might be interested in
PLS HELP ME solve the system of equations <br> all I need is to find x,y and z
ale4655 [162]

(x,y,z)=(-4,-2,-5)

I added some images for explanation

7 0
3 years ago
Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre
Len [333]

Answer:

In the operation, simplify

9-a² = (3-a)(3+a)

Factorize

4a²-4a-24-------------------divide each term by 4

a²-a-6-------------------------factorize

a²-3a+2a-6

a(a-3)+2(a-3)

(a+2)(a-3)

Factorize

a²-6a+9

a²-3a-3a+9

a(a-3)-3(a-3)

(a-3)(a-3)

Rewrite operation as

\frac{8}{(3-a)(3+a)} /\frac{(a+2)(a-3)}{(a-3)(a-3)}

Multiply by the recipricol

\frac{8}{(3-a)(3+a)} *\frac{(a-3)(a-3)}{(a+2)(a-3)}

cancel the similar terms

\frac{8}{(3-a)(3+a)} *\frac{(a-3)}{(a+2)}

6 0
3 years ago
An isosceles triangle has a perimeter of 36 inches. Its base is 2 1 /2 times longer than each of its legs. What are the lengths
tensa zangetsu [6.8K]

Answer:

8 in, 8 in and 20 in

Step-by-step explanation:

Let the equal sides of the isosceles triangle be x, then

The base = 2.5x

Sum the 3 sides and equate to the perimeter of 36

x + x + 2.5x = 36

4.5x = 36 ( divide both sides by 4.5 )

x = 8

Thus the 2 equal legs = 8 in

base = 2.5x = 2.5 × 8 = 20 in

7 0
3 years ago
PLz, Help fast! 100 points
dlinn [17]

Answer:

It can be the line of best fit because it closely fits the data points.

Step-by-step explanation:

The line is near the data points and goes down from left to right just like the data points.  It is just above or just below the data points.

3 0
3 years ago
Read 2 more answers
Line r and m are parallel. Find the value of x.
Evgesh-ka [11]

Answer:

Answer:

10x-3=7x+45 corresponding angle

10x-7x=45+3

3x=48

x=48/3=16

value of x is 16.

5 0
3 years ago
Other questions:
  • You decide you need a new computer. The cost of the computer is $768. However,
    9·1 answer
  • How would you integrate (2x-1)(6x+5)? is there a product rule for integration?
    10·1 answer
  • What best decribes the area of polygon
    9·1 answer
  • Please help me <br> What is 6(3/5x -2.3 ) equivalent to ?
    13·1 answer
  • Evaluate the given algebraic expression for x = 3 and y=3.<br> x^2y^2
    14·1 answer
  • 7x2 +11x-6/7x2 - 10x + 3
    6·2 answers
  • What is a function exponential
    15·2 answers
  • Which statements are true for the functions g(x) = x^2 and h(x) =-x^2? Check all that apply
    10·1 answer
  • 6 x 10^5 over 6 x 10^4 equals ??
    5·1 answer
  • What is the answer to 5+x/9=4
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!