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
lozanna [386]
3 years ago
6

Find the value of this expression if x = -9. x2 + 3 x +6

Mathematics
1 answer:
iren [92.7K]3 years ago
7 0

Answer:

Step-by-step explanation:

x² + 3 = (-9)² + 3          {  (-9)² = -9 *-9 = 81}

     = 81 + 3

       = 84

x + 6 = -9 + 6 = -3

You might be interested in
Two functions are combined resulting in the function j(x) = –3x2 + 5.
labwork [276]

Answer:

two quadratic functions combined by addition

a linear function and a quadratic function combined by addition

two linear functions combined by multiplication

Step-by-step explanation:

-3x² + 5

(-4x² + 4) + (x² + 1)

-3x² + 5

(-3x² - x) + (x + 5)

-3x² + 5

(sqrt(5) - sqrt(3)x)(sqrt(5) + sqrt(3)x)

7 0
3 years ago
What is the explicit formula for the sequence?
Aleksandr [31]

Answer:

a_{n} = n - 2

Step-by-step explanation:

Note the difference between consecutive terms is constant, that is

0 - (- 1) = 0 + 1 = 1

1 - 0 = 1

2 - 1 = 1

3 - 2 = 1

This indicates the sequence is arithmetic with n th term

a_{n} = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = - 1 and d = 1, thus

a_{n} = - 1 + n - 1 = n - 2

7 0
3 years ago
Use the distributive property to remove the parentheses.
nlexa [21]

Answer:

Step-by-step 12c^{3} -40c^{8}explanation:

8 0
3 years ago
Which of the following is the measurement of DQRS
Elis [28]
A rectangle is a quadrilateral that has two sets of parallel sides. Each side of the rectangle forms a 90 degrees with the other side. If diagonals are drawn, the lines will divide the angle into two having an angle 90 degrees. Therefore, 90 degrees is the answer hope its help you
3 0
3 years ago
Find the area of the following shape. You must show all work to receive credit
kirza4 [7]

Answer:

42 square units

Step-by-step explanation:

Draw segments - 5 to A, A to the point of intersection of Band C and from from the point of intersection of B, C upto 2. It will form a square with each side 8 units and four triangles.

Subtracting the area of 4 four triangles from the area of the square will give you the area of the required shape.

Area of the shape

=  {8}^{2}  -  \frac{1}{2}  \times 3 \times 6 - \frac{1}{2}  \times 5 \times 2 - \frac{1}{2}  \times 2 \times 3\\ - \frac{1}{2}  \times 2 \times 5 \\  \\  = 64 - 3 \times 3 - 5 \times 1  - 1\times 3 - 1 \times 5 \\  \\  = 64 - 9 - 5  - 3 - 5 \\  \\  = 64 - 22 \\  = 42 \:  {units}^{2}

3 0
3 years ago
Read 2 more answers
Other questions:
  • The graph of a function is shown:
    6·1 answer
  • Can someone help me please
    13·1 answer
  • A student says that a coordinate grid under a dilation with the center at the origin and scale factor 2 does not change the grid
    5·1 answer
  • How to work out problem 6 3/4 - 8 2/3
    13·2 answers
  • What is the solution of the following system
    9·1 answer
  • What is the perimeter, P, of a rectangle that has a length of x + 8 and a width of y-1?
    6·1 answer
  • In a diagram which of the following statements are false
    8·1 answer
  • Please help, see attachment
    7·1 answer
  • Need help solving this problem ​
    12·1 answer
  • How do you convert joules to kJ
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!