A comlemetery angle is a angel or angles that add up to 90 degrees. They make a right angle. A supplemetry angle is a agle or agles that add up to 180 degrees and make a strate line.

6 0

3 years ago

Factor completely: 9x3 + 9x2y - 4x - 4y

belka [17]

$9x^3 + 9x^2y - 4x - 4y$

$= 9x^2(x + y) -4(x + y)$

$= (x +y)(9x^2-4)$

$= (x +y)(3x - 2)(3x + 2)$

3 0

3 years ago

Read 2 more answers

Please help me with question number 2

7nadin3 [17]

Answer:

this is easy u need just to put values in the formula

Step-by-step explanation:

putting values in the formula

T =

$2\pi \sqrt{l \div g}$

T =2×3.14√0.65÷9.8

T= 6.28√0.066

T=6.28×0.25

T=1.617s answer

7 0

3 years ago

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zheka24 [161]

Answer:

the answer is the third option

Step-by-step explanation:

6 0

3 years ago