Step-by-step explanation:
2x-9y+7x+20
9x - 9y +20
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Answer:
<h2>(-∞ , -3/2)∪(3 , +∞)</h2>
Step-by-step explanation:
Here we have to solve this inequality 2x² - 3x - 9 > 0 for x.
In order to solve this inequality we need to factorize the expression at first:
2x² - 3x - 9 = 2x² - 3x - 3x + 3x - 9
= 2x² + 3x - (6x + 9)
= x(2x + 3) - 3(2x + 3)
= (2x + 3)(x - 3)
check the attached picture
conclusion:
the set of values of x for which y>9 is :
(-∞ , -3/2)∪(3 , +∞)
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:)
Part A:
f(x) = 20x
Part B:
6 gallons
Centre of circle = (-2, -3)
Equation of the circle:
( x - ( -2) )² + ( y - (-3) )² = (√2/4)²
(x + 2)² + (y + 3)² = 1/8 (Answer D)
Answer:
Step-by-step explanation:
Given: The radius is 6 cm
To find the area + circumference we need to use 2 formulas:
Area: pi* radius^2
Circumference: 2*pi*r
First we can do the area
I will use "pi" for pi instead of 3.14
pi * 6^2
= 36 pi
The area is 36 pi
Next, circumference
2 * pi *r
2*pi*6
= 12 pi
So the area is 36 pi, and the circumference is 12 pi
