Answer:
4 2/3 cm
Step-by-step explanation:
When we have area, it is the related to the scale factor by the scale factor squared
Area large/ area of small = 49/9
Take the square root
sqrt(49/9) = 7/3
The scale factor is 7/3 large to small
The small side is 2 cm
large 7 x cm
-------- = ------ = -----------
small 3 2 cm
Using cross products
7*2 = 3x
Divide by 3
14/3 = 3x/3
14/3 = the large side
( x - 5 )( x + 2 )
= x² + 2x - 5x - 10
= x² - 3x - 10
D. 1/5^15
When an exponent is negative you need to get the reciprocal to make it positive.
319/1000= 0.319
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