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
USPshnik [31]
3 years ago
14

a) The quadratic 3x^2-12x-11 can be written in the form 3(x+a)^2+b. Find the values of a and b. b) Given that the solutions of t

he equation 3x^2-12x-11=0 can be written as c ± √d, where c and d are rational numbers. Find the values of c and d answer for d as a fraction in it's simplest form
Mathematics
1 answer:
LenKa [72]3 years ago
5 0

Answer:

Step-by-step explanation:

a) 3x^2-12x-11=3*x^2-3*2*2*x+3*4-23=3*(x^2-2*2x+2^2)-23=3*(x-2)^2-23

so  a= -2 ,b= -23

b) x1=[12+V(12^2-4*3* -11)]/6=12/6+V(144+132)/6=2+2/6V69=2+1/3V69=

2+V69/9=2+V23/3

c=2, d= 23/3

You might be interested in
Juan is buying soda for a class party. he can go to the vending machine and buy 12-oz cans for $0.60 each, to the corner store a
rodikova [14]

Answer:

Best deal is corner store

Step-by-step explanation:

LCM is 480 oz

480 oz of the Vending Machine would be £24 (0.60 x (480/12))

480 oz of the Corner Store would be £22.80 (0.95 x (480/20))

480 oz of Grocery store would be £23.25 (1.55 x (480/32))

4 0
3 years ago
Find the diameter of the circle with the given circumference.use 3.14 for pi<br><br> C=23 cm
zvonat [6]

Answer:

7.324840764

Step-by-step explanation:

23/3.14=7.324840764

7 0
3 years ago
What is y+3=4(x-1) in Slope intercept form ?
mina [271]
Y+3=4(x-1)
Y+3=4x-4
-3 -3
Y=4x-7
3 0
3 years ago
What is the answer to∠X≅∠X
Galina-37 [17]

Answer: ∠A ≅ ∠A; reflexive property

Step-by-step explanation: found it online :)

6 0
3 years ago
Vicki is 5 years older than twice Ella's age, a.
Anettt [7]

Answer:

5+3a=29

Step-by-step explanation:

let Ella's age be 'a'

Vicki's age=5+2a

sum of their ages= 29

So, the equation is

  (5+2a)+a=29

       5+3a=29

<em>hope this helps!</em>

8 0
3 years ago
Read 2 more answers
Other questions:
  • Give me the answer that’s all
    7·2 answers
  • A medical researcher selects a random sample 1,000 adults and finds that 2% have this type of cancer. Each if the 1000 adults is
    8·1 answer
  • Mr. Ellison lost $3 per share on the Triple E Stock he purchased last year. He purchased 250 shares. Express Mr. Ellison's loss
    7·1 answer
  • What’s the answer to this?
    15·1 answer
  • noise in a quiet room is 500 times for as intense as the threshold of sound. what is the decibel measurement for the quiet room?
    9·1 answer
  • PLEASE HELP!!! Needed ASAP!
    14·1 answer
  • Instructions: Find the measurement of the diagonal indicated in the following parallelogram.
    5·1 answer
  • Solve 4x - 7y ( x = 6, y = -4 ) *​
    10·2 answers
  • Multiply 546.1 × 0.52 = ____
    15·1 answer
  • The edges of a box are 4 cm, 6 cm and 8 cm. Find the length
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!