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
coldgirl [10]
4 years ago
13

If f(x)=3x^2-2x+5, find (-2)

Mathematics
1 answer:
WITCHER [35]4 years ago
8 0
The answer is 21...3x^2=12 -2×=4 and add 5
You might be interested in
Solve the equations.<br> a. (x − 2)^2 = 9<br> b. 3(x − 2)^2 = 9<br> c. 6 = 24(x + 1)^2
seropon [69]

Answer: a) x = 5 or -1 b) x = √3+2

c) x = -1/2 or -3/2

Step-by-step explanation:

a) (x − 2)² = 9

First step is to take the square root of both sides to eliminate the square

√ (x − 2)² = √9

x-2 = +-3

x = +3+2

x = 5 and;

x = -3+2

x = -1

x = 5 or -1

b) 3(x-2)² = 9

First we divide both sides by 3 to get;

(x-2)² = 9/3

(x-2)² = 3

Second step is to take the square root of both sides to eliminate the square

√(x-2)² = √3

x-2 = √3

x = √3+2

c) 6 = 24(x+1)²

Dividing both sides by 24, we have

6/24 = (x+1)²

1/4 = (x+1)²

Taking the square root of both sides we have

√1/4 = √(x+1)²

= +-1/2 = x+1

x = +1/2-1 = -1/2 and;

x = -1/2-1 = -3/2

x = -1/2 or -3/2

4 0
3 years ago
In rectangle nice, the base is 2x and the height is x+1. the perimeter is 53 feet. find the height
mihalych1998 [28]
The perimeter equation for a rectangle is two times the base plus two times the height.
2B + 2H=P

Plug in the known values and solve for x.
2(2x) + 2(x+1)=53
4x+2x+2=53
6x=51
x=8.5

Now that we know what x is, put it back into the formula for the height of the rectangle to find the final answer.
H= x+1
H=8.5+1
H=9.5 ft
4 0
3 years ago
What is the area of this shape?
m_a_m_a [10]

Step-by-step explanation:

idk the answer but find the area of a circle with the radius of 45 m and then find the area of the rectangle then add them together.

5 0
3 years ago
On a coordinate graph,which of the following is true of Quadrant 3?
Nonamiya [84]
D. The x and y values are both negative

5 0
3 years ago
Which transformations could have occurred to map ABC
antoniya [11.8K]
A translation and dilation
5 0
3 years ago
Other questions:
  • A bookbook can be classified as either non dash fictionnon-fiction or fictionfiction. Suppose that 9494​% of booksbooks are clas
    7·1 answer
  • What is the volume of the right triangular prism
    10·1 answer
  • Find the area if length is 4x, width is 9 and x is 1/3
    7·1 answer
  • I need to complete the equation of the line through (3 -1) and (4 7). I am really stumped on this topic, please explain the proc
    7·1 answer
  • In her last four games of golf, Maria has had scores of 76, 73, 70, and 67.
    7·1 answer
  • Phone company a sells 1200 minutes for 132$ epr month and phome company b sells 2000 minutes for 260$ per month.which company is
    5·1 answer
  • Identify the scale factor when we scale up from Figure S to T. Just write the number.
    14·1 answer
  • At midnight, the temperature in a city was 5 degrees Celsius. The temperature was dropping at a steady rate of 2 degrees Celsius
    6·1 answer
  • James is 8 years old. Last year, his father was 4 times as old as he was. In how many years' time will their combined age be 51?
    11·1 answer
  • If he drank 80% of his water on his entire hike. How much did he drink? (Remember he brought 3 liters of water.)
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!