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
8_murik_8 [283]
3 years ago
10

If -nx2 + tx + c = 0, what is x equal to?

Mathematics
1 answer:
Helen [10]3 years ago
5 0
f(x)=-nx^2+tx+c=0\\\\
\Delta=t^2-4\cdot(-n)\cdot c=t^2+4cn\\\\
1.\\
 \Delta0\\
\sqrt{\Delta}=\sqrt{t^2+4cn}\\
x_1=\frac{-t-\sqrt{t^2+4cn}}{2\cdot(-n)}=\frac{t+\sqrt{t^2+4cn}}{2n}\\
x_2=\frac{-t+\sqrt{t^2+4cn}}{2\cdot(-n)}=\frac{t-\sqrt{t^2+4cn}}{2n}\\
You might be interested in
Find the value of x​
damaskus [11]

Answer:

x=12

Step-by-step explanation:

First, note that the angles shown are vertical angles. In other words, the two equations are equivalent to each other.

Therefore, set the equations equal to each other and solve for x;

6x+7=8x-17

Add 17 to both sides:

6x+24=8x

Subtract 6x from both sides:

24=2x

Divide both sides by 2:

x=12

Therefore, the value of x is 12.

And we're done!

4 0
3 years ago
Read 2 more answers
What is the value of y?
Xelga [282]

Answer:

y = 54

Step-by-step explanation:

We know the sum of the angles of a triangle are 180

72+y+y = 180

Combine like terms

72 + 2y = 180

Subtract 72 from each side

72-72 +2y = 180-72

2y = 108

Divide each side by 2

2y/2 = 108/2

y = 54

7 0
3 years ago
A factory needs to produce 1,800 jars of peanut butter on a certain day.
finlep [7]

Answer:

d

Step-by-step explanation:

because in 2 they make 600 and 600 times 3 is 1,800 then do 2 times 3 witch is 6 so 6 hours after 10:30 is 3:30. I hope that makes sense <3

7 0
2 years ago
Which expression is equivalent to 7/2h - 3 (5h - 1/2)
poizon [28]

7/2h-3/2step-by-step

explicacion: 7/2h-3=37/2h5h

1/2= 3/2Expression made:37/2h 3/2

5 0
2 years ago
PLSSSSS HELP PLS QUICKLY PLS
masya89 [10]

Answer:

-64

Step-by-step explanation:

we should put -2 for j and -1 for k,

8 0
3 years ago
Read 2 more answers
Other questions:
  • The Willis Tower is 1450 feet tall. Jeff
    5·1 answer
  • Write each number. 100 less than 877
    9·1 answer
  • Mention 15 examples of vegetables​
    7·1 answer
  • I really need some geometry help!
    11·1 answer
  • A tower is 200 feet tall. To the nearest degree, find the angle of elevatio n from a point 50 feet from the base of the tower to
    11·1 answer
  • What is the missing step in solving the inequality 4(x – 3) + 4 &lt; 10 + 6x? 1. The distributive property: 4x – 12 + 4 &lt; 10
    7·2 answers
  • 25% of X<br> (a) 0.25x<br> (b) 0.25 / x<br> (c) 0.25 - x<br> (d) 0.25 + x
    10·2 answers
  • A dart is to be thrown at a target. The probability the dart will hit the target (yes or no) on a single attempt is 0.20. Each t
    11·1 answer
  • 15a &gt; 75. Substitute 5 for a. PLEASE HELP
    8·1 answer
  • AHHHHHHHHHHHH this is so hard
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!