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
lisov135 [29]
3 years ago
9

Given the function: f(x) = 2x2 - 3x + 8, find f(-2).

Mathematics
1 answer:
Vaselesa [24]3 years ago
5 0

Answer: 22

<u>Step-by-step explanation:</u>

f(x) = 2x² - 3x + 8

f(-2) = 2(-2)² - 3(-2) + 8

       = 2(4) + 6 + 8

       = 8 + 6 + 8

       = 22

You might be interested in
10. rhombus abcd has vertices at a(-2, 7), b(8, 7), c(2, -1), and d (-8, -1).
horrorfan [7]

Answer: 80

Step-by-step explanation:

We can use the formula A=\frac{d_{1}d_{2}}{2}, where d_{1}, d_{2} are the lengths of the diagonals.

By the distance formula,

AC=\sqrt{(-2-2)^{2}+(-1-7)^{2}}=\sqrt{16+64}=4\sqrt{5}\\BD=\sqrt{(-8-8)^{2}+(-1-7)^{2}}=\sqrt{256+64}=8\sqrt{5}

So, the area is \frac{(4\sqrt{5})(8\sqrt{5})}{2}=\boxed{80}

6 0
2 years ago
I need to know it ASAP
kotegsom [21]

Answer:

78

Step-by-step explanation:

You would look at the middle number of all the numbers to find the median.

Hope this helps!

6 0
3 years ago
Read 2 more answers
at the library, you find 9 books on a certain topic. the librarian tells you that 55% of the books on this topic have been signe
e-lub [12.9K]
Multiply 9 books by 55% by doing

9 x .55 = 4.95

We can't have 4.95 books, though so it rounds down to 4 because you can't just add another .05.
8 0
3 years ago
How do you rewrite 3x-9y=18 as a slop-intercept form?
Norma-Jean [14]
I believe it would be y=-1/3x-2
5 0
3 years ago
In the diagram, point M is the center of the circle. If m∠PMN = 134°, what is m∠PON?
denpristay [2]

Answer:

67

Step-by-step explanation:

its not a 90!!! tilt your screen.

8 0
2 years ago
Other questions:
  • 7(x+4)-2[x-3(5+x)]=⅔(x-6)​
    5·1 answer
  • Estimate the value of 98.5x13
    14·2 answers
  • Which of the equations below could be the equation of this parabola?
    8·1 answer
  • Solve the system of equations below by graphing both equations with a pencil and paper. What is the solution? y = x + 5 y = –2x
    7·2 answers
  • This is a true or false answer please help me**
    8·1 answer
  • What is the mean absolute deviation of the data set?
    7·2 answers
  • The scale on a map of Wisconsin states that 1 cm: 25 km, if the distance on the map between Madison and Milwaukee measures 5cm,
    8·1 answer
  • There are 20 chickens and 30 ate cows how many left over?
    12·2 answers
  • Going to my last resort, brainly
    7·1 answer
  • You rent an apartment that costs $1300 per month during the first year, but the rent
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!