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
svp [43]
3 years ago
6

If f(x)=3x^2-9 and g(x)=x^2+1 find (f+g)(x)

Mathematics
1 answer:
givi [52]3 years ago
5 0

Answer:

4x^2 -8

Step-by-step explanation:

f(x)=3x^2-9

g(x)=x^2+1

(f+g)(x)=3x^2-9 +x^2+1

Combine like terms

           = 4x^2 -8

You might be interested in
How can you use the Distributive Property to solve multistep equations?
Ad libitum [116K]

Answer:

just distibute the propertys to other propertys

Step-by-step explanation

3 0
3 years ago
If x = 0 and y< 0 where is the point (x, y) located with
maria [59]

Answer:

on the negative y- axis

7 0
3 years ago
What decmal of an hour is a second​
aleksandr82 [10.1K]

Answer:

0.000126. Hint:There are 60 seconds in a minute and 60 minutes in an hour. Therefore on multiplying all the values we get the number of seconds in an hour. Hence we can divide one second by the total number of seconds in an hour to get the desired decimal value.

Step-by-step explanation:

Please give me brainlist

6 0
3 years ago
Read 2 more answers
Name an inscribed angle
Vladimir79 [104]

Answer:

BHF

Step-by-step explanation:

Definition of inscribed

6 0
3 years ago
A rectangular parking lot has a perimeter of 820 ft. The area of the parking lot measures 42,000 ft2. What is a dimension of the
dalvyx [7]

To solve the problem we must know about quadratic equations.

<h2>Quadratic Equation</h2>

A quadratic equation is an equation that can be written in the form of

ax²+bx+c.

Where a is the leading coefficient, and

c is the constant.

The breadth of the rectangle is 200 ft, while the length is 210 ft.

<h2>Explanation</h2>

Given to us

  • Area of the parking lot = 42,000 ft²
  • Perimeter of the parking lot = 820 ft

<h3>Area of the parking lot</h3>

Area of the parking lot = Area of the rectangle

42,000 ft² = Length x Breadth

Solving for L,

42,000 = L \times B\\\\&#10;L = \dfrac{42,000}{B}

<h3>Perimeter of the parking lot</h3>

Perimeter of the parking lot = Perimeter of the rectangle

820 ft. = 2(Length + Breadth)

820 ft. = 2(L+ B)

2(L+ B) = 820\\\\&#10;(L+B) = \dfrac{820}{2}\\\\&#10;(L+B) = 410

Substituting the value of L,

(L+B) = 410\\\\&#10;(\dfrac{42,000}{B}) +B = 410\\\\&#10;42000 + B^2 = 410B\\\\&#10;B^2 -410B +42000 = 0

<h3>Quadratic Expression</h3>

Solving the quadratic Expression,

B^2 -410B +42000 = 0\\\\&#10;(B-210)(B-200)=0

Equation the factors against zero,

B-210=0

B = 210

B-200=0

B = 200

Hence, the breadth of the rectangle is 200ft, while the length is 210 ft.

Learn more about Quadratic Expression:

brainly.com/question/10025464

4 0
3 years ago
Other questions:
  • The links of the legs of a right triangle are 9 cm and 12 cm what is the length of a hypo hypotenuse
    6·2 answers
  • To find out how fast a tree grows, you can measure its trunk. A giant red oak's diameter was 248 inches in 1965. The tree's diam
    15·2 answers
  • If
    9·1 answer
  • Please someone help..<br><br> ill give brainliest if ur answer is correct
    11·2 answers
  • Solve the equation show your work <br><br> 5d=17.1
    10·2 answers
  • Square root of 90 rounded to the nearest hundredth
    14·2 answers
  • What is the value of "a"?<br> ill give brainliest to whoever answers this question correctly
    6·2 answers
  • This is an example of a random sample: Surveying people in the library about whether they like to read books.
    10·2 answers
  • Aditya's dog routinely eats Aditya's leftovers, which vary seasonally. As a result, his weight fluctuates throughout
    7·1 answer
  • What is the measure of angle x?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!