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
True [87]
3 years ago
12

Use the quadratic formula to solve the quadratic equation x2 − 8x − 4 = 0.

Mathematics
1 answer:
mixas84 [53]3 years ago
4 0
Hello here is a solution :
<span>x² − 8x − 4 = 0.
</span><span>quadratic equation   ax²+bx+c = 0  when :  a=1 and b= -8 and c = -4
discriminant : d = b²-4ac       d= (-8)²-4(1)(-4) =64+16 =70
x= (-b-rot(d))/2a          </span>x'= (-b+rot(d))/2a    .......conrinu
You might be interested in
_________________ please help!!!!!!!
jeka94

Answer:

The answer would be C)5

Step-by-step explanation:

The unknown triangle is half of the size of the original triangle, The right side measurement basically hints to the actual answer.

5 0
3 years ago
I need help thank you
balandron [24]

Answer:

Question 4 is B

7 0
3 years ago
The answer to this question
cestrela7 [59]

Answer: B

Step-by-step explanation:

I believe so but I’m not sure I remember having that exact question I forgot

8 0
3 years ago
Help on number 8? Helper gets points. Please show work :p.
Monica [59]

Student P:

They messed up in step 1 because they made the 7.75 positive instead of negative, which causes the entire solution to be wrong

Student Q:

They were correct up until step 3. They didn't take all the negatives out of the equation (ex. -(3.5+7.75+29.67)).

Complete set:

From the picture, it looks like the original problem was

-2.5(1.4+3.1)+6.9(-4.3)

Step 1: multiply

1.4(-2.5)+3.1(-2.5)+6.9(-4.3)

Step 2: subtract (add?) them all together

-3.5-7.75-29.67

Step 3 should equal -40.92

4 0
3 years ago
HELP WILL MARK BRAINLYEST WoW
Varvara68 [4.7K]

Answer:

the x-cordinate for p is -6

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Solve the inequality for v <br><br>56&gt;8v
    15·2 answers
  • I kinda sorta understand this but not completely
    13·1 answer
  • Find the distance between these points.
    8·2 answers
  • SAT verbal scores are normally
    5·1 answer
  • Keira has 3 1/8 pizzas. She splits it equally between her 5 friends. What fraction of the original pizzas does each friend get?
    15·1 answer
  • 3/5+1/2=?+?=?,or? ; please DONT explain the anwser and how to do it i would just like the anwser this is what this site is for
    8·1 answer
  • URGENT!!
    12·1 answer
  • 3.) Light travels at a speed of 1.25 x 107 miles per minute. Pluto's average distance from the
    11·1 answer
  • Determine whether each geometric transformation is a translation, a reflection, or a rotation.
    8·2 answers
  • danny bought a shirt that was first put on sale for 30% off that went on clearance for an additional 40% off. what is the markdo
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!