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9th grade algebra. help if you can! ?
A circle ha a radius of 3x^7y^3cm. the area of a circle can be found using A=πr^2. What is the area of this circle in square centimeters?
2 Answers
- llafferLv 71 month agoFavorite Answer
You are given the following:
r = 3x⁷y³ cm
And:
A = πr²
To find the area in terms of x and y, substitute and simplify:
A = π(3x⁷y³)²
To square that, you square each factor separately. When getting the exponent of an exponent it's the same as multiplying exponents. So this becomes:
A = π(9x¹⁴y⁶)
And put into some form of a standard form:
A = 9x¹⁴y⁶π cm²
- ?Lv 71 month ago
A circle has a radius of 3x^7y^3 cm.
The area of this circle in square centimeters:A = πr^2 = 9 π x^14 y^6 cm^3
