Solve 3x^2 - 20x - 7 =0
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So make it (3x+1)(x-7)
X equals 7 and -1/3
9x-20x-7=0
-11x-7=0
-7 -7
_______
-11x 0
_____
11 11
your answer is 0
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Irina predicted that she would sell 75 books, but she actually sold 95 books. Which expression would find the percent error? Use the table below to help answer the question.
Calc Help Please!!! Urgent!!
PLEASE HELP I ONLY HAVE ONE HOUR PLEASE HELP PLEASE
Answers
Answer:
The answer is 2.5 hours. That's how long it would take the train to travel 270 kilometers.
mark me brainliest!
b. 150°
c. 180°
d. 360°
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180(n-2)
Where n is the number of sides. Therefore
180(1)
=180
So the interior angles add up to 180 degrees in a triangle.
commonly referred to as a "triangle" ... is 180 degrees.
It doesn't matter whether the polygon is regular or not.
Any three sides make three angles that total 180 degrees.
Answers
Answer:
2950
Step-by-step explanation:
10(250+45)
10(295)
2950
Answers
Answers
Equation given in the question represents a circle.
Therefore, there will be infinite lines of symmetry.
Line of symmetry of a figure:
- Line of symmetry of a figure is the line over which half of the figure overlaps the other half.
Given in the question,
- Graph represented by the equation → x² + y² = 9
Equation given in the question is in the form of
Since, general equation of a circle is given by,
Therefore, given equation represents a circle.
By definition, a circle has infinite lines of symmetry passing through the center.
Therefore, given equation will have infinite lines of symmetry.
Learn more about the lines of symmetry here,
Answer:
It has infinitely many line of symmetry. All diameters are line of symmetry.
Step-by-step explanation:
Given: Equation is x² + y² = 9
To find: line of symmetry of given equation
Given equation is the equation of circle.
x² + y² = 9
re write,
(x-0)² + (y-0)² = 3²
by comparing given equation with standard equation of circle ,
(x-h)² + (y-k)² = r²
we get, h = 0 , k = 0 , r = 3
⇒ Centre of circle = ( 0 , 0 ) and radius of circle = 3 unit
Since It is a circle. so it has Infinitely many line of symmetry
Also, All diameters of this circle are line of symmetry for this circle.
Some equation of line of symmetry,
x-axis : y = 0
y-axis : x = 0
Answers
Answer:
x > 1
Step-by-step explanation:
To find an equivalent inequality for -x < -1, you can multiply both sides of the inequality by -1. When you multiply or divide both sides of an inequality by a negative number, you need to reverse the direction of the inequality sign. Here's how it works:
Starting inequality: -x < -1
Now, multiply both sides by -1 (remember to reverse the inequality sign):
-x * (-1) > -1 * (-1)
This simplifies to:
x > 1
So, the equivalent inequality is:
x > 1