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
sammy [17]
2 years ago
10

Find the x intercepts of f(x) = –16x^2 + 22x + 3

Mathematics
1 answer:
Helga [31]2 years ago
4 0
That is where the line crosses the x axis or where y=0

0=-16x^2+22x+3
we gon do grouping
ac method
-16 times 3=-48

what 2 numbers multiply to get -48 and add to get 22
-2 and 24
0=-16x^2-2x+24x+3
group
0=(-16x^2-2x)+(24x+3)
undistribute
0=-2x(8x+1)+3(8x+1)
undistribute
0=(8x+1)(-2x+3)
set eaqual to 0

8x+1=0
8x=-1
x=-1/8

-2x+3=0
3=2x
3/2=x

x intercepts ate x=-1/8 and x=3/2
You might be interested in
Help worth 20 points due in 10 minutes
Black_prince [1.1K]

Answer:

answer is option A: 13m+8

5 0
2 years ago
Point A is located at (4, 1). Point B is located at (-3, 3). How did Point A move to Point B?
Marrrta [24]
I forgot but I used to know this one
6 0
2 years ago
Use calculus to find the area of the triangle with the vertices (0, 5), (2, -2), and (5, 1).
guajiro [1.7K]

The area of the triangle with the vertices (0, 5), (2, -2), and (5, 1) by using the calculus is  21 square unit.

We need to find the equation among all possible pairs and then integrate the equations from one co-ordinate to another co-ordinate

Equation of line passing through (0,5) and (2,-2) is

y-5 = [(-2-5)/(2-0)](x-0)

=>y-5 = (-7) /2x

=>y= (-7/2x)+5 -------(eq1)

Equation of line passing through (0,5) and (5,1) is

y-5 = [(1-5) / (5-0)](x-0)

=>y-5 = (-4/5)x

=>y = (-4/5)x+5-------(eq2)

Equation of line passing from (2,-2) and (5,1) is

y-(-2) = [[1 - (-2)] / (5-2)] / (x-2)

=>y+2=(3/3)(x-2)

=>y=x-4--------(eq3)

Now, we use definite integration to find the area between the different equation of line.

So, area enclosed between the equations is given by the

area =\int\limits^5_2[(-4/5)x+5 - (-7/2)x + 5)dx  + \int\limits^5_1[(-4/5)x+5 -(x-4)]dx

=>area=\int\limits^5_2(7/2-4/5)x dx + \int\limits^5_1((-9/5)x+9)dx

Using properties of integration,\int\limits x\, dx=x^{2}/2

=>area=\int\limits^5_2(27/10)x dx + \int\limits^5_1(-9/5)x+9)dx

=>area=([27/10)×[5² - 2²])/2 + [ (-9/5)×(5²-1²) ]/2 +9×(5-1)

=>area=(27/20)×(25-4) + (-9/5)×24+9×4

=>area = (27×21)/20 + (-216)/5+ 36

=>area=(567/20) - (216/5) + 36

=>area= [(567-261×4)+(36×20)]/20

=>area=[(567-864)+720]/20

=>area=423/20

=>area=21 square unit.

Hence, area of triangle is 21 square unit.

To know more about area of triangle, visit here:

brainly.com/question/19305981

#SPJ4

4 0
1 year ago
Need help with questions 32-33
velikii [3]
The answer for 32 is 6 and the answer for 33 is -3
4 0
2 years ago
Read 2 more answers
Can someone plz help me ?
Bingel [31]

Answer:

2

Step-by-step explanation:

not needed

7 0
3 years ago
Read 2 more answers
Other questions:
  • The following expression is an example of which property of real numbers?
    9·1 answer
  • A square tile has a side length of 10 cm what is the area of the tile
    10·2 answers
  • Does anyone know the answer 2=10-4y;2
    9·1 answer
  • What is 2000 converted into standard notation
    6·1 answer
  • I need help on this one plz and thank u
    15·1 answer
  • 3<br> x. 3x²+x-3=0<br> Find the zeros
    14·1 answer
  • Select the statement that makes this comparison correct: 0.45 ________ 0.39.
    11·2 answers
  • Solve for F ------- 2/3 + f = 1/5<br> A= 13/15<br> B= 7/15<br> C= - !3/15<br> D= - 7/15
    5·2 answers
  • 1) Find the ending balance after these transactions: Transactions: A. Your
    12·1 answer
  • Whats 3x7/18<br> Answer Please
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!