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
asambeis [7]
2 years ago
10

Help please! using quadratic formula round ti nearest hundred ​

Mathematics
1 answer:
Lera25 [3.4K]2 years ago
3 0

Answer:

x = 0.19 or x = -0.76

Step-by-step explanation:

Equation: 7²-4x = 2

reordering the equation,

7x²-4x-2 = 0

Applying,

x = [-b±√(b²-4ac)]/2a..................... Equation 1

From the question,

Given: a = 7, b = -4, c = -2

Substitute these values into equation 1

x = [-4±√(-4²-(2×7×-2)]/(2×7)

x = [-4±√(16+28)]/14

x = (-4±√44)/14

Either

x = (-4+√44)/14

x = (-4+6.63)/14

x = 2.63/14

x = 0.19

or

x = (-4-√44)/14

x = (-4-6.63)/14

x = -10.63/14

x = -0.76

You might be interested in
Please help
Lera25 [3.4K]

Answer:0+&N*=98n

Step-by-step explanation:

7 0
3 years ago
Simplify 12,176 divided by 24
Harrizon [31]
12,176/24 = 1522/3 or 507 1/3
6 0
3 years ago
What is the y intercept of this graph of this graph
kompoz [17]

Answer:

i cant entirely see the image well, but the<u> y intercept</u> should be the line that passes through the line on the graph that goes <u>up and down</u>

<u>Step-by-step explanation:</u>

i hope this helps :))

8 0
2 years ago
What is the slope of the line that
kherson [118]

Answer:

The value of the slope is 6

Step-by-step explanation:

To get the slope of the line, we are going to make use of the slope equation

Mathematically, we have this as;

m = (y2-y1)/(x2-x1)

where (x1,y1) = (1,2) and (x2,y2) = (2,8)

Substituting these values;

m = (8-2)/(2-1) = 6/1 = 6

4 0
2 years ago
Nick's boss called to ask if he could cover another employee's shift on Friday night. However, Nick said that he was busy becaus
earnstyle [38]

Answer: $25

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • Jane has 5 nickels.John has 3 dimes.Jane says she has a greater amount of money.With the information given,is she correct?
    11·1 answer
  • Whats 12 over 5 to a mixed number
    7·1 answer
  • ,,,,,,,,,,,,,,,,,i want the answer
    11·2 answers
  • A Blue Viper can travel 18 2/5 miles on 4/5
    13·1 answer
  • A wooden bench was originally priced at $50 but went on sale for 20% off. If Presley bought the wooden bench and paid a 5% sales
    5·2 answers
  • What is his total interest?
    13·2 answers
  • Find 20%of 30%of 180
    12·1 answer
  • (-3x+5)(2x+4) in standard form step by step
    10·2 answers
  • john likes to walk the steps of the department he works for during lunch break. There are s steps in his department. Today John
    14·1 answer
  • Which function represents a reflection of f(x) = 5(0.8)x across the x-axis?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!