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
kirill [66]
2 years ago
14

Solve the following equation for x. 80x^2+92x-84=0

Mathematics
1 answer:
velikii [3]2 years ago
7 0

Answer;

x = 0.6 and x = -1.75

Step-by-step explanation:

80x2+92x−84=0

Use quadratic formula

x = (−b ±√(b2−4ac))/√2a

x = (-92 ± √(35344)) / 160

x = 95/160 and x = -280 / 160

x = 0.6 and x = -1.75

You might be interested in
A general contractor is constructing a building that requires a concrete foundation that is to be 20 feet by 12 feet and 4 inche
ikadub [295]

First we calculate the volume of the foundation:

Volume (V) = 20 ft * 12 ft * 4 in (1 ft / 12 in)

V = 80 ft^3

 

Since the cost is in cubic yard (yard^3) so convert:

V = 80 ft^3 * (1 yard^3 / 27 ft^3) = 2.963 yard^3

 

So the total cost is:

cost = ($125 / yard^3) * 2.963 yard^3

<span>cost = $370.37</span>

7 0
3 years ago
Read 2 more answers
A fruit company delivers its fruit in two types of boxes: large and small. A delivery of 5 large boxes and 6 small boxes has a t
Mekhanik [1.2K]

Answer:

Large Box = 18.5

Small Box = 15.75

Step-by-step explanation:

Let x = large box and y = small box

5x+6y=187

3x+2y=87

cancel out one equation

(5x+6y=187)•3=15x+18y=561

(3x+2y=87)•-5=15x+10y=435

 15x+18y=561

-15x-10y=-435

–––––––––––

 0+ 8y= 126

  8y÷8 =126÷8

y=15.75

Substitute y into either original equation

3x+2(15.75)=87

3x+ 31.5=87

3x+ 31.5-31.5=87-31.5

3x=55.5

3x÷3=55.5÷3

x=18.5

5 0
3 years ago
WILL MARK BRAINLIEST What is the equation of the line shown in this graph?
barxatty [35]

Answer:

-2

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Which expression is equivalent to (3x squared -7) The answer is (10x squared -4) - (7x squared +3)
WITCHER [35]

Answer:

(10x squared -4) - (7x squared +3)

3 0
3 years ago
Someone please help with these and explain your answer for both!!! I will give brainliest if correct!!!
goldenfox [79]

Answer:

C

Step-by-step explanation:

We have congruent angles in the middle and 2 sides are congruent as well which makes (Angle-Side-Side) which doesn't work for congruent triangles.

3 0
2 years ago
Read 2 more answers
Other questions:
  • Jennifer is shopping with her mother. They pay $2 per pound of tomatoes.
    6·1 answer
  • Edgar held a garage sale and sold a combined total of 15 toys and
    7·2 answers
  • A right pyramid that is 12 feet tall has a square base whose side length is 5 feet. What is its slant height, what is the length
    10·1 answer
  • What is the value of this expression? PLEASE HELP!!!!
    13·2 answers
  • Which pair of sets of tables represent a function that has linear (constant) rate of change?
    10·1 answer
  • Factor −1/4 out of −1/2x−5/4y.
    14·1 answer
  • Click and drag like terms onto each other to simplify fully<br> 7-1-6+4x
    14·1 answer
  • 3. Karen is making 14 different kinds
    5·1 answer
  • Which group of integers is in order from least to greatest?
    12·2 answers
  • Juan divided 1/2 jar of fish food into 7 equal parts. He feeds his fish one part each day.
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!