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
mart [117]
3 years ago
11

Enter the correct answer in the box. Solve the quadratic equation by completing the square.

Mathematics
1 answer:
viktelen [127]3 years ago
3 0

Answer:

Interpreting as: X=a-sqrt b X=a+sqrt b

Input:

X = a - sqrt(b) X = a + sqrt(b)

Alternate forms:

{a = (sqrt(b) + 1) X, a = X - sqrt(b), b = 0 ∨ X = -1}

{a = (sqrt(b) + 1) X, a + sqrt(b) = X, sqrt(b) (X + 1) = 0}

You might be interested in
140 subtracted from the square of a number the result is three times the number find the negative solution
natima [27]

Answer:

Suppose~that~the~number~is~x.\\According~to~question,\\x^2-140=3x\\or, x^2-3x-140=0\\From~the~quadratic~formula,\\x = \frac{-(-3)+\sqrt{(-3)^2-4(1)(-140)} }{2(1)} ~and ~x= \frac{-(-3)-\sqrt{(-3)^2-4(1)(-140)} }{2(1)} \\or, x = \frac{3+\sqrt{9+560} }{2}~and~x=\frac{3-\sqrt{9+569} }{2}\\or, x = \frac{3+\sqrt{569} }{2}~and~x=\frac{3-\sqrt{569} }{2}\\So,~the~required~negative~number~is~\frac{3-\sqrt{569} }{2}.

5 0
3 years ago
Find the volume of this cone.
RSB [31]

Step-by-step explanation:

volume =  \frac{1}{3} \pi {r}^{2} h \\  =  \frac{1}{3}  \times 3 \times  {2.5}^{2}  \times 6 \\  = 37.5 \:  {cm}^{3}

7 0
3 years ago
Read 2 more answers
Please answer both questions right answers get ✨brainlest!✨
Marat540 [252]
Answer...to finding the volume of the rectangular prism.....27 3/8 because volume=Length multiplied by Height multiplied by width on cubes and rectangular prism

6 0
2 years ago
Read 2 more answers
A bag contains 40 marbles. There are 26 blue, 5 green,
BabaBlast [244]

Answer:

1/8

Step-by-step explanation:

5 green marbles

40 marbles in total

so 5/40

And that simplifies to 1/8

8 0
3 years ago
I don't understand how to do this question, I need help<br><br> Find the value of x in each diagram
Korvikt [17]

Answer:

A. x = 8.

B. x = 31.

C. x = 32.

Step-by-step explanation:

Here. the sum of the 2 parallel sides of the trapezoid = 2 * length of the middle line segment.

MN + RS = 2PQ

32+ x = 2*20

x =  40 - 32

x = 8.

MN + RS = 2PQ

20 + 42 = 2PQ

2x =  62

x = 31

MN + RS = 2PQ

22 + 42 = 2PQ

2x =  64

x = 32.

5 0
3 years ago
Other questions:
  • if a farmer has one square mile of land if he divides his land into square fields that are 1/4 mile long and 1/4 mile wide how m
    11·1 answer
  • Whats the table function for y=2x-5
    6·1 answer
  • What is the surface area in square inches of a cube with side lengths of 4 inches
    8·2 answers
  • What did Darwin and Lamarck have in common?
    11·2 answers
  • Find the unit rate: $3.60 for 3 pounds of apples. How much does it cost for 1 pound of apples?
    15·1 answer
  • Is the sequence Arithmetic or Geometric?<br> -2, 4.-8, 16, ...
    10·1 answer
  • Luna's bill for lunch at a restaurant was $11. She left a 20% tip. What was the amount of the tip?
    10·1 answer
  • Help me plz!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1
    14·1 answer
  • Help me with this plz guys ur my only hope
    7·1 answer
  • What type of number is 4over5​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!