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Katen [24]
3 years ago
5

Write as a product: a2+b2–2ab –25

Mathematics
1 answer:
kozerog [31]3 years ago
3 0

Answer:  -a2 - 2ab - b2 + 25  =

 -1 • (a2 + 2ab + b2 - 25)

Final result :

 -a2 - 2ab - b2 + 25

Step-by-step explanation:

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A trapezoid pyramid has a base area of 128 square centimeters. If it’s volume is 10,240 cubic centimeters, what is the height of
White raven [17]

Answer:

The height of the pyramid is 1.875\ cm

Step-by-step explanation:

we know that

The volume of the trapezoid pyramid is equal to

V=Bh

where

B is the area of the trapezoid base

h is the height of the pyramid

we have

B=128\ cm^{2}

V=240\ cm^{3}

substitute and solve for h

240=(128)h

h=240/(128)=1.875\ cm

3 0
3 years ago
Circle e has a radius of 40 inches with m arc ABC=324 degrees. Find the exact length of arc ABC.
creativ13 [48]
The formula to find the Length of the arc = (2r) (θ / 360°)
Substituting the values
Length of the arc = (2) (40) (324° / 360°)
By further calculation
= (80) (0.9)
So we get
= (80) (3.14) (0.9)
= 226.08 cm.
Therefore, the length of the arc is 226.08 cm.

Hope this helps
8 0
2 years ago
SImplify to standard form (a+bi)<br> (12-9i)²
olga2289 [7]

Answer:

Hello,

Step-by-step explanation:

<u />

<u>Formula used (a+b)^2=a²+2ab+b²</u>

(12-9i)^2=3^2*(4-3i)^2\\\\=9*(16-9-24i)\\\\=9*(7-24i)\\\\=63-216i\\

5 0
3 years ago
Des makes 4 trays of granola bars.each tray holds 8 bars how many granola bars dose des make? Choose a strategy to solve.use num
iris [78.8K]
The answer is 32.  You have four trays each have 8 bars so multiply 8 and 4.

8*4=32

6 0
3 years ago
What are the domain and range of f(x) =4^x-8
Nutka1998 [239]
The domain in this equation is -7<x<infinty and the range is negative infinty<y<1.5
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3 years ago
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