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
Lemur [1.5K]
3 years ago
6

The company charges $ a0 per hour What is the value of b2 - 4ac for the following equation? x(x + 8) = 9

Mathematics
1 answer:
Mila [183]3 years ago
6 0

Answer:

The value of b² - 4 a c = 100

Step-by-step explanation:

Given equation  x(x + 8) = 9

                  ⇒ x² + 8 x = 9

                 ⇒ x² + 8 x - 9 =0

        The standard form of quadratic equation

          a x ² + b x + c

 Here a = 1 , b = 8  , c = -9

<em> The value of b² - 4 a c  = ( 8)² - 4 (1)(-9) </em>

                                       = 64 + 36

                                       = 100

<u><em>Final answer:-</em></u>

The value of b² - 4 a c = 100

You might be interested in
True or false 8.25 is greater than 8.25 repeating
AURORKA [14]

Answer:

ture

Step-by-step explanation:

7 0
1 year ago
A car travels 200 miles using 8 gallons of gasoline. What's the unit rate in miles per gallon? Please write
inn [45]

Answer:

0.04

Step-by-step explanation:

what you would do is 8 divided by 200 and get 0.04

please mark me brainliest

4 0
3 years ago
Read 2 more answers
It costs y dollars to buy x cans of tomatoes. What is the constant of proportionality?
svlad2 [7]

Answer

1 and 0.89

Step-by-step explanation:

idrk tho

6 0
2 years ago
HELP ASAP PLEASE
dimaraw [331]

Answer:

Two different cars each depreciate to 60% of their respective original values. The first car depreciates at an annual rate

10%. The second car depreciates at an annual rate of 15%. What is the approximate difference in the ages of the two

cars?

Step-by-step explanation:

the answer is in the question

7 0
2 years ago
Giving BRAINLIEST for correct awnser! Factor the expression below.
melomori [17]

Answer:

C. 6a + 5b

Step-by-step explanation:

36a^2-25b^2

Rewriting as

(6a)^2 - (5b)^2

We know this is the difference of squares

(x^2 -y^2) = (x-y)(x+y)

(6a - 5b) (6a+5b)

6 0
3 years ago
Read 2 more answers
Other questions:
  • Which inequality represents this sentence?
    13·2 answers
  • What is an equivalent formula to B=A+C/D?
    11·1 answer
  • What is 8 over 30 equal to?????
    6·1 answer
  • The coordinate grid shows the plot of four equations. a coordinate plane is shown with four lines graphed. line a crosses the x
    15·2 answers
  • The diameter of each wheel of a bicycle is 27 inches. If you are traveling at a speed of 20 miles per hour on this bicycle, thro
    7·2 answers
  • Carry" it needed. Use the (27) 5 0 X 21​
    12·1 answer
  • Beth is making fruit salad. She adds 4 grapes for every 2 strawberries. If she uses 14 strawberries, how many grapes will she us
    6·2 answers
  • A market buys cashews for $15 per pound. They want to mark up the cashews 20%. What is the new price per pound?
    13·1 answer
  • Can someone please help me??? i really need it!!!
    14·1 answer
  • You would like to buy a necklace as a graduation gift for your brother.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!