2 years ago

Factor 54+27 using the GFC

1 answer:

4 0

You mean GCF Greastest Common Factor

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pentagon [3]

$\sum\limits_{i=3}^{10}(2i-9)=2(3)-9+2(4)-9+2(5)-9+2(6)-9+2(7)-9\\\\+2(8)-9+2(9)-9+2(10)-9\\\\=6-9+8-9+10-9+12-9+14-9+16-9+18-9+20-9\\\\=90-72=18$

6 0

2 years ago

Alex_Xolod [135]

Answer:

Step-by-step explanation:

Given expression is,

(2x - 1)² + 2(2x - 1) = (2x - 1)(2x + 1)

To prove this identity we will take the left hand side of the equation and will prove equal to the right side.

(2x - 1)² + 2(2x - 1) = (2x - 1)(2x + 1)

4x² - 4x + 1 + 4x - 2 = (2x - 1)(2x + 1)

4x² - 1 = (2x - 1)(2x + 1)

(2x - 1)(2x + 1) = (2x - 1)(2x + 1) [Since a² - b² = (a - b)(a + b)]

6 0

3 years ago

inysia [295]

Answer: 8

Step-by-step explanation: 8(15-4)/4^2-5 8(11)/16-5 88/11 = 8

3 0

2 years ago

zalisa [80]

1.) y-7=4(x+3)
2.) y+7=(x-1)
3.) y-3=6(x+8)

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2 years ago

skad [1K]

Answer:

U= 53-degrees because of the definition of a straight angle

V=74-degrees

Step-by-step explanation:

5 0

3 years ago