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
iogann1982 [59]
3 years ago
14

Hi I really need help on this I will give 60 points MAY YOU PLEASE HELP ME!!!

Mathematics
1 answer:
kolezko [41]3 years ago
3 0

Try this explanation:

1. if to simplify the equation into the form ax²+bx+c=0 then to calculate 'D' ⇒ x²-8x-20=0; D=16+20=36. The value of D is greater 0, it means the given equation has two solutions.

2. Wrong step and correct way are shown in the picture in the attachment.

3. Description of the solution: the points with x=1;3 are the intersection points of the function y=x²-4x+3 and Ox-axis.

PS. all the details are in the attachment.

You might be interested in
Austin is baking apple pies and apple cakes. Each pie takes three times the number of apples as each cake. He plans to make 2 pi
Setler79 [48]
The answer is A cause the X represents the number of apples used in 1 cake and the 3 represents how much more apples it takes for the pie than the cake .
7 0
3 years ago
A number that's greater than 40 whose prime factorisation contains 3 prime number that don't repeat
katovenus [111]
42. Because you divide into 6 and 7. 6 is divided into 3 and 2. So, 2 times 3 times 7.
3 0
3 years ago
0.83 is 10 times as much as
densk [106]

Answer:

0.83 is 10 times as much as 0.083

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
A small college has 800 students, 10% of which are left-handed. Suppose they take an SRS of 8 students.
Margarita [4]

Answer:

(8/2)(0.10)^2(0.90)^6

Step-by-step explanation:

Khan

3 0
3 years ago
Completely factor each of the given polynomials. If a polynomial cannot be factored, write "not factorable."
Art [367]
4x^2+23x+15=0
Δ=23^2-4*4*15=529-240=289

x1= (-23+17)/8=-6/8= -3/4
x2= (-23-17)/8=-5

4x^2+23x+15= 4(x+3/4)(x+5)=(4x+3)(x+5)
6 0
2 years ago
Other questions:
  • Jamal is going to borrow $25,000 from his credit union to buy a used car. The APR is 7% and the length of the loan is 5 years. W
    14·1 answer
  • Find the LCM of 24,36
    15·1 answer
  • Roy drives a sedan that gets mileage of 30 miles per gallon. If fuel consumption is represented by g and mileage by m, which fun
    12·1 answer
  • PLEASE help me what’s the answers!!!!???
    14·1 answer
  • What is the simplified form of (15x^5/24y^8) divided by (4x^2/8y^4)
    7·1 answer
  • Finding X in triangle
    9·1 answer
  • What is the value of x?<br> 76+71=124
    15·2 answers
  • Point C' is the image of C (-4,-2)under a reflection across the y-axis.
    10·1 answer
  • Try This one out and I’ll give you brainliest no links or I will report you Thank you
    12·2 answers
  • Please help!!! it will mean alot :/
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!