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
Sphinxa [80]
3 years ago
7

Write the quadratic equation in general form. What is the value of b2 - 4ac? 1 = 2x2 + 5x?

Mathematics
1 answer:
lidiya [134]3 years ago
8 0
I hope this helps you

You might be interested in
The least common denominator of 3/4 and 1/6 is 24. true or false
Triss [41]

Answer:False


Step-by-step explanation:

4: 4, 8, 12

6: 6, 12

The least common denominator is 12.


3 0
3 years ago
Read 2 more answers
We know the following about the numbers a, b and c:
labwork [276]

Step-by-step explanation:

(a + b)² = 9

(b + c)² = 25

(a + c)² = 81

Taking the square root:

a + b = ±3

b + c = ±5

a + c = ±9

By adding these three equations together and dividing both sides by 2, we get the value of a + b + c.

Possible combinations for a + b + c such that the sum is greater than or equal to 1 are:

a + b + c = (-3 + 5 + 9)/2 = 11/2

a + b + c = (3 − 5 + 9)/2 = 7/2

a + b + c = (3 + 5 + 9)/2 = 17/2

3 0
3 years ago
The sum of two numbers is 54. The smaller number is 18 less than the larger number. What are the numbers?
igomit [66]

Answer:

The larger number is 37.  This makes the smaller number 56 - 37, which is 19.

Step-by-step explanation:

 

The first step is to pick variables for the two numbers.  Lets call the smaller number x and the larger number y.

Since the sum of the two numbers is 56, this means that x + y = 56.  Let's call this equation 1 and save it for later.

 

The next sentence says:

The smaller number is 18 less than the larger number.  So, 18 less than the larger number would be y - 18.  So, the smaller number must be equal to this, so

 

x = y - 18

 

Replace the x in equation 1 with y - 18

 

x + y = 56

(y-18) + y = 56   (replace x with y-18)

2y - 18 = 56        (add the y's)

2y = 74               (add 18 to both sides)

y = 37                 (divide both sides by 2)

 

So, the larger number is 37.  This makes the smaller number 56 - 37, which is 19.

 

Hope this helps!!  :)

8 0
3 years ago
A Local group claims that the police issue more than 60 speeding tickets a day in thire area. To prove their point, they randoml
MissTica

Answer:

The group's claim is not supported at 1% significance level.

Step-by-step explanation:

given that a local group claims that the police issue more than 60 speeding tickets a day in thire area

The data they collected for 2 weeks is given below:

70 48 41 68 69 55 70

57 60 83 32 60 72 58

\bar x = 60.2\\s = 12.9\\n=14

Std error of mean = \frac{12.9}{\sqrt{14} } \\=3.4477

H_0: \bar x=60\\H_a: \bar x >60

(Right tailed test at 1% significance level)

Mean difference = 0.10

Test statistic t with df 13 = mean difference/std error

= 0.029

p value = 0.4886

Since p >0.01, we accept null hypothesis

The group's claim is not supported at 1% significance level.

7 0
3 years ago
Please, show me how to find the limit.<br><br> lim θ sin θ<br> θ→π <br><br> Thank you!
Morgarella [4.7K]
Ignore the fact that it says limit because when sin (pi) is here it is not an Undefined Point, whatever value the calculator says is sin(pi) is the answer.
5 0
3 years ago
Other questions:
  • Frank deposited $100 into an account that earns 4% interest which is compounded 4 times per year. how much money will Frank have
    10·1 answer
  • medians am and cn of triangle abc intersect at point o. what part of the area of abc is the area of aon?
    7·1 answer
  • What is the area of this triangle?
    15·2 answers
  • The 6th term of an arithmetic progression is 35 and the 13th term is 77. find the 1st term
    10·1 answer
  • Please help me out with this!!!!!!
    8·2 answers
  • What is the y intercept of the quadratic function f(x)=(x-8)(x+3)
    5·1 answer
  • ...................................................................................,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,..........
    5·1 answer
  • A department store offered a 15% discount off the regular price of a shirt. The amount of the discount is $3. What is the regula
    10·2 answers
  • 5. Find x and UV if V is between<br> U and w, with UV = 3x + 7,<br> VW = 4x + 5 and UW = x + 96
    5·1 answer
  • K sooo, i have solve for x and the equation is 5x-7=3x+3 now move all constants to the to the other side of the equation 2x-7=3
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!