Answer:
12v6u-3
Step-by-step explanation:
-3 times -4 is positive 12
-3 times -2 is positive 6
-3 times positive 1 is negative 3
Area = Length x Width
Given that the area is 30 cm² and Length = 5 cm, find width:
30 = 5 x width
width = 30 ÷ 5 = 6cm
Answer: The width is 6 cm
Answer:
Reduction
Step-by-step explanation:
So, lets go over what we know:
The black rectnagle is the orginal shape.
The organe rectnalge is the new shape.
The organge rectangle is smaller than the black rectangle.
The rogane rectangle is a scaled image of the black rectangle.
So, enlargment is when a object has a scale factor that makes it bigger than the orgninal object.
Reduction, on the other hand, is when a object has a scale factor that makes it smaller than the orginal object.
As we can see, the organe rectnagle is much smaller than the black rectnalge.
So this must be reduction, since the organe rectangle has a small scale factor that causes the shape to shrink in size.
Hope this makes sense and helps you! :)
Answer:
y = 0.48(x - 0.5)² - 3
y = 0.48(x² - x - 6)
Step-by-step explanation:
From the graph the zeros are
x = {-2, 3}
The x coordinate of the vertex is the midpoint of the roots
x = (-2 + 3) / 2
x = 0.5
The y coordinate of the vertex is
y = -3
vertex = (0.5, -3)
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Merhod I - vertex
Vertex form is
y = a(x - h)² + k
plug in the vertex
y = a(x - 0.5)² - 3
to find a plug in either root
using x = 3
0 = a(3 - 0.5)² - 3
0 = a(2.5)² - 3
0 = 6.25a - 3
3 = 6.25a
a = 3/6.25
a = 0.48
y = 0.48(x - 0.5)² - 3
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Method II - roots
y = a(x + 2)(x - 3)
-3 = a(0.5 + 2)(0.5 - 3)
-3 = a(2.5)(-2.5)
-3 = -6.25a
3/6.25 = a
0.48 = a
y = 0.48(x + 2)(x - 3)
Expand
y = 0.48(x² - x - 6)
(r-s)/r=d would be the rule you use to find the discount when r= regular price and s equals sale price and d= discount
