Step-by-step explanation:
something went very wrong with the problem description.
the area of a triangle is
base × height / 2
so, we know the area, and we know the height.
therefore
470 = base × 20 / 2 = base × 10
base = 470/10 = 47 mm
Answer:

Step-by-step explanation:
This is where knowing the exponent rules come into play. The negative exponent applies for both 6 and 2.
The negative exponent rule is basically reciprocal of x. So, if x is the numerator, it gets moved to the denominator, and vise versa. Also, the power of a power applies here too with the implied 1st power.

Answer:

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Answer: the scale factor is 4.5, and the length of the small rectangles missing side is 2. The area of the smaller rectangle is 6 square centimeters.
Step-by-step explanation:
I found the scale factor then applied it to the missing numbers to get the answer.