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
Vesnalui [34]
3 years ago
5

Select the correct answer. Solve the equation using the method of completing the square. 2r2 + 16r - 8 = 0​

Mathematics
2 answers:
adoni [48]3 years ago
8 0

Answer:

r=-4+2\sqrt{5}, r=-4-2\sqrt{5}

hram777 [196]3 years ago
8 0
Did you try using photo math or math away
You might be interested in
1234567891011121314151617181920 +2019181716151413121110987654321 quick what is it.​
vekshin1

Answer:

3.2537496e+30

Step-by-step explanation:

3 0
3 years ago
The height in feet above the water of a diver can be modeled by ℎ() = −16*2 − 16 + 192, where t is the time in seconds after the
Maurinko [17]

h(t) is the height of the diver in feet above the water

Now it asks about the time at which diver reaches the water

When diver reaches the water , the height of diver from water should be zero

So we plug h(t) =0

So

-16t^2 -16 t +192 =0

divide whole equation by -16

t^2 +t -12 =0

we can now factor the quadratic equation

So we get

(t+4)(t-3) =0

plug each factor equal to zero and solve for t

t+4 =0 and t-3 =0

So t=-4 and t=3

Now time cannot be negative , So t=3

So time = 3 seconds

It takes 3 seconds for the diver to reach the water

3 0
3 years ago
Do this and you’ll get 25 points
MrRissso [65]

Answer:

1

Step-by-step explanation:

m= (y-y1)/(x-x1)

Points are  (-10, -20) and (1, -9)

m= (-20+9)/(-10-1)= (-11)/(-11)= 1

m=1 to replace ? mark

6 0
3 years ago
Read 2 more answers
Explain the attribute that makes a square a special rectangle
g100num [7]
Every square is a rectangle because it is a quadrilateral with all four right angle (a rectangle is not a square)
3 0
3 years ago
Read 2 more answers
1.Describe a qualitative observation<br> 2.Describe a quantitative observation
kipiarov [429]
1) There are 6 dogs total in the picture.

2) Only 3 dogs are tan colored.
3 0
3 years ago
Read 2 more answers
Other questions:
  • What are the roots of y = x2 – 3x – 10?
    5·1 answer
  • Under GAAP-based costing, what assumption justifies allocating organization-level manufacturing overhead among products?
    9·1 answer
  • Enter the correct answer in the box.<br> The graph shows function j, a transformation of x^1/2 .
    15·1 answer
  • . Simplify the expression. 4 + 18 ÷ 2 – 1
    6·1 answer
  • Is there an ordered pair that is a solution to BOTH of
    14·1 answer
  • Your friend says "Multiplying a number by 5 is a 500% increase" Describe and correct the error in your friend's reasoning.
    12·1 answer
  • -2+n=-8(1-8n)+6 solve for n.
    11·1 answer
  • Chris Evans drives 300 miles per week in his Honda Civic that gets 22 miles per gallon of gas. He
    12·1 answer
  • BOT
    8·1 answer
  • 3. Twelve people work together: four of them are managers and eight of them are office workers. Two people are chosen at random
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!