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
solmaris [256]
3 years ago
6

X(15-x)=50 quadratic equations

Mathematics
1 answer:
meriva3 years ago
3 0

Answer:

15x -  {x}^{2}  =50 \\  {x }^{2}  - 15x  + 50 = 0 \\  {x}^{2} - 10x - 5x + 50 = 0 \\ x(x - 10) - 2(x - 10) = 0 \\ (x - 2)(x - 10) = 0 \\ x = 2 \: and \: x = 10

You might be interested in
Arjun can type 40 words per minute.Dalia can type 55 words per minute.If Arjun and Dalia each type for 30 minutes,about how many
Citrus2011 [14]
♥ Solve:
(Arjun) 40*30=1200
(Dalia) 55*30=1650
Now subtract
1650-1200=450.
That means that Dalia will type 450 minutes more. 
Final answer: 450 

8 0
3 years ago
Read 2 more answers
Who is Pythagorean? when was he born? when did he die?
Rama09 [41]

Answer:

" Pythagoras established the first Pythagorean community in Crotone, Italy. Early Pythagorean communities spread throughout Magna Graecia. "

"was an ancient Ionian Greek philosopher and the eponymous founder of Pythagoreanism . " <---------- Credits to: Yahoo

He was born in about 570 BC on the Greek island of Samos

He died in 495 BC

4 0
3 years ago
Please help I will give out brainliest
Licemer1 [7]

Answer:

Step-by-step explanation:

Our function is : 3x²-3x-1

  • 3x²-3x+2=2
  • 3x²-3x-1+3=2
  • 3x²-3x-1= -1
  • the number that gives us -1 is 1 (from the graph)

so x is 1

  • 3x²-3x-1= x+1  ⇒3x²-4x-2 = 0
  • Δ(the dicriminant)= (-4)²-4*3*(-2)= 16+24 =40
  • two solution x and y
  • x= (4-√40)/6 and y= (4+√40)/6
  • x= -0.38 and y = 1.7
  • so the estimations are -0.38 and 1.7

6 0
3 years ago
What is the area of the trapezoid?
IRINA_888 [86]

Answer:

69.75 square inches

Step-by-step explanation:

Add the top and bottom lengths then divide by 2 before multiplying it with the height

1/2x(3+12.5)=7.75

7.75x9=69.75

4 0
3 years ago
Read 2 more answers
What is -3/4+2 3/4 O 3 1/2 O 3 3/4 O 2 1/2 O 2​
sveticcg [70]

Answer:

D. 2

Step-by-step explanation:

Common denominator is already presented which is 4.

-3/4 and 3/4 cancel each other out.

you can also convert to decimal form -3/4 + 2 3/4 is the same as:

-0.75 + 2.75 = 2.

3 0
2 years ago
Other questions:
  • Which statement is an axiom of Euclidean geometry? If two lines intersect, their intersection is a plane. If two planes intersec
    11·2 answers
  • I need help pleaseeeee Prove that: 12^13–12^12+12^11 is divisible by 7 and 19. BTW in format ______*7*19 :D
    15·1 answer
  • Fill in the missing number.<br> 24, 32, _<br> -, 48, 56
    8·1 answer
  • Pleaseeeeeeee help me on thissssss i need helpppppp
    14·1 answer
  • Maria has 6 ⅛ cups of flour, but only needs 4 ¼ cups for her recipe. How much will she have left​
    15·2 answers
  • Mary and Kyle together sold 225 candy bars for a fund raiser. Kyle sold twice as many candy bars as Mary.
    12·2 answers
  • F(x) = 5х – 3<br> f(5) =
    13·2 answers
  • How do we locate the solution of a systems of linear equation?
    15·1 answer
  • Sheza and Hadia had 12579 paper stars. Sheza gave 2214 paper stars to Hadia. Now Hadia had twice as many paper stars as Sheza. H
    10·1 answer
  • Suppose, instead, that Bruce used 6 full boxes of tiles plus an additional 2 tiles, and Felicia used 5 full boxes of tiles plus
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!