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
ivanzaharov [21]
2 years ago
6

Can somebody help me solve this problem .

Mathematics
2 answers:
aleksandrvk [35]2 years ago
7 0

Answer:

b = 40

Step-by-step explanation:

You want your discriminant to be zero because then you have exactly one solution.

Solve b²-4ac = 0

=>

b² - 4·400 = 0

b = ±√1600

so b=±40

but f(-20) also has to be 0

so b=40 remains as the solution

padilas [110]2 years ago
5 0

Answer:

b = 40

Step-by-step explanation:

If x = - 20 is a zero of f(x) then f(- 20) = 0 , that is

(- 20)² - 20b + 400 = 0

400 - 20b + 400 = 0

800 - 20b = 0 ( subtract 800 from both sides )

- 20b = - 800 ( divide both sides by - 20 )

b = 40

You might be interested in
What is the measure of ZRMN?
Volgvan
Yes! Yup your right! Congrats yup!
3 0
2 years ago
How do you graph the trigonometric function y= -sin(2x)+1?
Naddik [55]

Answer:

Graph the trigonometric function using the amplitude, period, phase shift, and vertical shift.

Amplitude:  1

Period:  π

Phase Shift: 0  ( 0  to the right)

Vertical Shift: 1

4 0
3 years ago
A shuttle bus makes 4 round trips between two shopping centers each day the bus holds 24 people if the bus is full on each one w
QveST [7]
48 is your answer:):);)
7 0
3 years ago
Help i need help please
lubasha [3.4K]

Answer: C

Step-by-step explanation:

On the big triangle, the length from the origin to point A is three blocks. On the new triangle it is only one block. And it is getting smaller, so it is a fraction.

1/3 over the y axis.

7 0
2 years ago
A square has an area of 121 in^2 what is the length of the sides
Gelneren [198K]

Answer:

11in

Step-by-step explanation:

\sqrt[]{121} =11 Then you add the units.

6 0
3 years ago
Other questions:
  • Please help me !!!!!!!!
    12·1 answer
  • Whats another way to write 300 70 5/10 8/100?
    8·1 answer
  • The circle below represents one whole.<br><br>What percent is represented by the shaded area?​
    12·2 answers
  • Solve 2y - 3 = 4y + 6<br> y<br> DONE
    13·1 answer
  • Take away the parentheses using distributive property.<br> −2(3v − 2x -1)
    10·1 answer
  • NEED HELP ASAP PLEASE<br><br> Y+1=3/4(x+3) <br><br> What is this equation in standard form?
    5·1 answer
  • find the missing value so that the line passing through the points has the given slope (x,-4) and (2, 8); m=-3
    14·1 answer
  • Find FL - will mark brainliest
    12·2 answers
  • Tristan is building a triangular roof for his treehouse. He already has two pieces of lumber that measure 6 feet long. Select al
    13·2 answers
  • *
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!