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77julia77 [94]
3 years ago
8

Whats a “real” number between -1/10 and 0?

Mathematics
1 answer:
lesya [120]3 years ago
6 0
The correct answer is 1. hope this helps. please mark as brainliest.

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1.What is the shape of the graph of any quadratic function?
likoan [24]

Answer:

Inverted parabola

Two complex solution

Step-by-step explanation:

any quadratic equation can be expressed in terms of ax^2 + bx + c = 0

It has two solutions which can be found using formula X =( -b + \sqrt{b^2 -4ac} )/2a \\or  \ ( -b - \sqrt{b^2 -4ac} )/2a

We know that  for any value inside the square root function

if it is positive its solution will be real number

for example  \sqrt{9} we can have two real solution -3 and 3

if it is negative its solution will be complex number

for example  \sqrt{-9}we can have two complex solution

expressed in term of a + ib or a - ib

------------------------------------------------------------------------------------------

Given in the problem

we have  ax^2 - bx + c

so its solution will be

X =( -(-b) + \sqrt{b^2 -4ac} )/2a \\or  \ ( -(-b) - \sqrt{b^2 -4ac} )/2a\\\\X =( b + \sqrt{b^2 -4ac} )/2a \\or  \ ( b - \sqrt{b^2 -4ac} )/2a\\

Since in this expression it is given in problem statement that b^2 - 4ac < 0 which will be a negative number and for negative number, its square root is complex number.

also X has two values as given above it will have two solution

hence it will have two complex solution based on above discussion.

Also for any quadratic equation shape of its curve if plotted on coordinate plane is parabolic.

If it has complex solution then curve of such expression  will not pass through X axis

7 0
3 years ago
From 180 books to 150 books
Harman [31]

What's the rest?You only said, From 180 books to 150 books sooo you gotta put the rest or nobody will answer it.

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3 years ago
PLEASE HELP AND QUICK WITH SHOWING THE WORKPLEASE HELP AND QUICK WITH SHOWING THE WORKPLEASE HELP AND QUICK WITH SHOWING THE WOR
vladimir2022 [97]

Answer:

what?

Step-by-step explanation:

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Eveyln packed this box with 1 inch
ivanzaharov [21]

Answer:

where are the answer choices

Step-by-step explanation:

3 0
3 years ago
Your school's drama club charges $4 per student for admission to Our Town. The club borrowed $400 from parents to pay for costum
inna [77]

Answer:

125 students attend.

Step-by-step explanation:

We already know that the drama club made $500 (500 - 400 = 100)

divide 500 by 4 to find out how many students attend the play, and paid $4

500 ÷ 4 = 125

125 students attend.

6 0
3 years ago
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