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
Dvinal [7]
3 years ago
12

PLEASE HELP!!!!!!!!BRAINLIEST PLUS 50 POINTS

Mathematics
1 answer:
docker41 [41]3 years ago
5 0

Use the quadratic formula to find:

x

=

1

±

√

85

5

Explanation:

5

x

2

−

10

x

−

12

is of the form  

a

x

2

+

b

x

+

c

with  

a

=

5

,  

b

=

−

10

and  

c

=

−

12

This has discriminant  

Δ

given by the formula:

Δ

=

b

2

−

4

a

c

=

(

−

10

)

2

−

(

4

×

5

×

−

12

)

=

100

+

240

=

340

=

2

2

⋅

85

This is positive, but not a perfect square, so the quadratic equation has a pair of irrational roots, given by the quadratic formula:

x

=

−

b

±

√

b

2

−

4

a

c

2

a

=

−

b

±

√

Δ

2

a

=

10

±

√

340

10

=

10

±

2

√

85

10

=

1

±

√

85

5

You might be interested in
Find the circumference and area of the circle. Use 3.14 or 22/7 for π.
Hoochie [10]

Answer:

  • circumference: 62.8 ft
  • area: 314 ft²

Step-by-step explanation:

The circumference is given by the formula ...

  C = πd

Using the given numbers, the circumference is ...

  C = (3.14)(20 ft) = 62.8 ft

__

The area is given by the formula ...

  A = πr² . . . . . where radius r is half the diameter

Using the given numbers, the area is ...

  A = 3.14(10 ft)² = 314 ft²

4 0
2 years ago
3.996 ➗ 1.2 = <br> plz help i need the answer
Artyom0805 [142]

Answer:

3.33

Step-by-step explanation:

hope this helps!!

3 0
2 years ago
Read 2 more answers
How many ways can the numbers 1-100 be arranged
ra1l [238]

Answer: 5 times

Step-by-step explanation:

6 0
2 years ago
Which is larger 4 yard or 13 foot?
kow [346]
As 1 yard is equal to 3 feet , so 4 yard will be 12 feet !

so 13 foot > 4 yards
4 0
3 years ago
59:26 What is the length of the hypotenuse, x, if (20, 21, x) is a Pythagorean triple? 22 29 41 42
Vikki [24]
If the legs are length a and b and hyptonuse is c then
a²+b²=c²

so
if the legs are 20 and 21 and the hypotnuse is x then
20²+21²=x²
400+441=x²
841=x²
29=x
4 0
3 years ago
Read 2 more answers
Other questions:
  • a rectangular prism has a height of 12 centimetres and a square base with sides measuring 5 centimetres, a pyramid with the same
    9·1 answer
  • Please Help!! 100 POINTS!!!
    14·2 answers
  • Please help, basic algebra. Find the value of x
    6·1 answer
  • HELP FAST
    12·2 answers
  • Solve: -1/2x + 2 = -x + 7
    11·1 answer
  • Help plz 100 points and brainly.
    6·2 answers
  • alex has 70% of her weekly paycheck automatically deposited into a savings account. this week, $35 is deposited. alex wants to k
    5·2 answers
  • Which is the graph of the cube root function f(x) = RootIndex 3 StartRoot x EndRoot?
    13·1 answer
  • A, B and C are coordinates on the line y = x − 7.
    13·1 answer
  • I don’t know if it’s maximum value or minimum value and the answer too
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!