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Cloud [144]
3 years ago
15

Find the width of rectangle if its area is (3x2 + 9xy + 6y2) square centimeters.

Mathematics
1 answer:
marin [14]3 years ago
5 0
I hope this helps you

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20. because 100/5=20cm2
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During the 1999 and 2000 baseball seasons, there was much speculation that the unusually large number of home runs that were hit
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What is the equation of the quadratic function with a vertex at (2,-25) and an x-intercept at (7,0)?
skelet666 [1.2K]

Answer:  f(x) = (x + 3)(x – 7)

Step-by-step explanation:  Use "standard form" of the function and insert values given: vertex (2,-25) intercept point (7,0)

f(x) = a(x-h)² + k   from vertex, h is 2   y is -25   from intercept,  x is 7  f(x) is 0

to find a,  0 = a(7-2)² +(-25)   0 = a(7-2)² -25  add 25 to both sides

25 = a(5)²  25 = 25a  25/25 = a  1=a  (seems useless but verifies implied "a"coefficient is 1)

f(x) = a(x-h)² + k solve to get the quadratic form

f(x) = (x-2)² -25     (x - 2)² is x² -4x +4

f(x) = x² -4x +4 -25  simplify

f(x) = x² -4x - 21   then factor

f(x) = (x + 3)(x - 7)

8 0
3 years ago
Please hurry!! I have less than 5 min!!<br> What is the area of this composite shape?
vladimir2022 [97]

Area of the composite shape = 292 yd²

Solution:

The shape is splitted into two rectangles.

The reference image of the answer is attached below.

Length of the top rectangle = 21 yd

Width of the top rectangle = 29 yd – 22 yd = 7 yd

Length of the side rectangle = 29 yd

Width of the side rectangle = 26 yd – 21 yd = 5 yd

Area of the figure = Area of the top rectangle + Area of the side rectangle

                              = (length × width) + (length × width)

                              = (21 × 7) + (29 × 5)

                              = 147 + 145

                              = 292

Area of the composite shape = 292 yd²

3 0
3 years ago
P(-2, -3) and Q(2, 7)
Zigmanuir [339]

Answer:

The slope is 10/4

Step-by-step explanation:

6 0
3 years ago
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