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
Len [333]
2 years ago
6

Find the nature of the roots of the roots of the equation (x-705)(x-795)+800(x-750)(x-835)=0.

Mathematics
1 answer:
alexandr402 [8]2 years ago
5 0

Answer:

B

Step-by-step explanation:

If you are allowed to use a graphing calculator, this can solve a lot of time. Graphing y = (x - 705)(x - 795) + 800(x - 750)(x - 835) gets us a parabola with x-intercepts of 749.97 and 834.924.

These roots are real and distinct, or choice B.

If you aren't allowed to use a graphing calculator, you can expand and combine like terms to get 801x^2 − 1269500x + 501560475. Looking at the discriminant, we see that (−1269500)^2 - 4*801*501560475 = 4630488100 is greater than 0 and not a perfect square, so it is real and distinct, or choice B.

I hope that helps!

You might be interested in
Please help I really need help
Cerrena [4.2K]
3.05 - take the 7 highest & lowest #s then take the average of the final two numbers (3.0 & 3.1)
4 0
3 years ago
Brian wants to build a ramp that leads to a storeroom 5 meters above the ground. He wants the ramp to be 10 meters long. What sh
Illusion [34]
The angle of elevation should be 15 degrees because u would add 5+10 you would get that answer
3 0
4 years ago
Read 2 more answers
A number, one-fourth of that number, and one-third of that number are added. The result is 38. What is the original number?​
Hatshy [7]

Answer:

24

Step-by-step explanation:

Let 12x represent the original number.

One fourth of that number can be represented by 3x, and one third of the number can be represented by 4x.

Create an equation that sets this equal to 38, and solve for x:

12x + 3x + 4x = 38

19x = 38

x = 2

The original number is represented by 12x, so plug in 2 as x:

12(2)

= 24

So, the original number is 24.

3 0
3 years ago
I don’t understand what to solve.
White raven [17]
Well since it gives you 2 gas stations it wants you to compare prices

Als gas station will be A
At-one will be B

since station A has $3.259/ gallon I assume
and B has $3.199/ gallon

just subtract them

so 3.259 -3.199 = 0.06

gas is less at station B noticeably costs less so thats your first answer

for the next one if you bought gallon of gas at the cheaper station you'd be saving $0.06/gallon since we got the difference from subtracting them.
3 0
4 years ago
AABC is dilated by a factor of 1/2 to produce AA'B'C',
Len [333]

Answer:

your answer will be C. B´C=8. m ZA=28

Step-by-step explanation:

hope it helps have a nice day

8 0
3 years ago
Read 2 more answers
Other questions:
  • Conditional probabilities
    11·1 answer
  • Simplify the expression (24÷3 )×5-6+2×7-3
    8·2 answers
  • Monica came home from trick or treating on Halloween night and had 36 pieces of candy in her bag. Each day she eats 2 pieces of
    15·2 answers
  • The ordered pair (a,b) gives the location of point P on the coordinate plane. The value of a is positive.
    12·2 answers
  • Find area of shaded version
    5·1 answer
  • Okay HELP i have to questions in one problem.
    5·1 answer
  • I need help with these questions please.
    9·1 answer
  • A registered dietitian is assisting a patient with hypertension to create a diet with a minimal amount of sodium. The recommende
    15·2 answers
  • Gabby is Mines >:) !
    13·1 answer
  • Answer the math question record subtraction with renaming show your work <br> 6-3 2/5
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!