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
Studentka2010 [4]
4 years ago
11

Please help me with 3&5!! Complete the square.

Mathematics
1 answer:
exis [7]4 years ago
6 0
I hope this helps you


1)


1.x^2+8x-6=0


D=8^2-4.1. (-6)


D=88


x1= -8+square root of 88/2.1


x2= -8- square root of 88/2.1


3)


x^2-10x-32=0


D=(-10)^2-4.1. (-32)=228


x1=10+square root of 288/2.1


x2=10- square root of 288/2.1


5)


x^2+4x+10=0


D=4^2-4.1.10= -24


x1=-4+2i.square root of6/2.1


x2= -4-2i.square root of 6/2.1


You might be interested in
Given sin B = .88 find angle B in radians. Round your answer to the nearest hundredth.
ELEN [110]

Use the inverse sine function on a calculator.


arcsin (0.88) = 1.08 radians

6 0
4 years ago
Find the area of the circle with the given radius or diameter. Use 3.14.
elena55 [62]

Answer:

Step-by-step explanation:

If the radius, r, is given, then the area of the circle is A = πr².

If the diameter, d, is given, then the circle area is A = π(d/2)², or A = πd² / 4.

4 0
3 years ago
Hi!! I need some help with those exercises can anybody help me please !! Thanks you
elena55 [62]

Answer:

Step-by-step explanation:

(a+b)^2=a^(2)+2ab+b^(2)

(a-b)^2=a^(2)-2ab+b^(2)

13)

(x+2)^(2)-(x-1)^2

x^(2)+4x+4-(x^(2)-2x+1)

x^(2)+4x+4-x^(2)+2x-1

6x+3

15)

(x+5)^(2)-(x+1)^2

x^(2)+10x+25-(x^(2)+2x+1)

x^(2)+10x+25-x^(2)-2x-1

8x+24

6 0
3 years ago
If |a| = |b| then does a = b?
kondor19780726 [428]

Answer:

yes, if |a|=|b| then a = b......

3 0
3 years ago
Which function is equivalent to y = 2(x – 4)^2 + 8?
Flura [38]

Answer:

B: y = 2x² - 16x + 40

Step-by-step explanation:

You can find this simply by expanding the given function:

y = 2(x - 4)² + 8

y = 2(x² - 8x + 16) + 8

y = 2x² - 16x + 32 + 8

y = 2x² - 16x + 40

8 0
3 years ago
Other questions:
  • the function g is a transformation of f if g has a y-intercept at -1 which of the following functions could represent g
    6·1 answer
  • Help please if very much appreciate it. ?
    12·2 answers
  • Solve the equation.
    15·1 answer
  • A delivery truck traveled ¼ of its route in 2 hours How long does it take to complete one route?
    6·2 answers
  • Joni has a box that has a mass of 67 dekagrams. She converts this to centigrams. Her work is shown below.
    10·1 answer
  • 1,615 ÷ 42 <br><br> Yea a divson prob its easy right I'm just timed two this is 1 minite so plz help
    13·2 answers
  • Geometry matching help
    10·1 answer
  • If you roll a die twice, what is the probability of getting a number greater than 3 on both rolls?
    8·2 answers
  • 15 POINTS!!!!!!! A population of bacteria increases by 30 every hour. Is this situation linear or exponential? A. Exponential, b
    12·1 answer
  • So i am confused about the triangle in the diagram​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!