The answer would be 2/21 in fraction form and 0.095238 in decimal form.
7 x 6 over 9 x 49 ( Multiply numerator by numerator and same thing with denominator )
42 over 9 x 49 ( Simplify 7 x 6 to 42 )
42/441 ( Simplify 9 x 49 to 441 )
2/21 ( Simplify ).
-3x^2(6x^2 + 2x - 3) = -18x^4 - 6x^3 + 9x^2
This is a sequence because the points form a straight line. The expression is: t(n) = 30 + 2x, x is number of weeks. On her 18th birthday, that is 8 years after her 10th. that means 416 weeks have passed since her 10th birthday. Plug 416 into the equation to get: t(416) = 30 + 2(416) = $862. She will have $862 to Spend.
If by "long leg lengths" you mean the hypotenuse then the area is 116 sq. units. If you mean the bases of the triangles then the area is 170 sq. units.
If the length of 12 is the hypotenuse, we first must find the base of the triangles using the Pythagorean theorem:
10² + b² = 12²
100 + b² = 144
b² = 44
b = √44 = 6.6
This means we have two triangles and a rectangle. The area of the rectangle is 5(10) = 50 sq. units. The area of each triangle is 1/2(6.6)(10) = 33. Adding all 3 together we have:
50+33+33 = 116 sq. units.
If the 12 is the base, then we have the rectangle with the area of 5(10) = 50 and two triangles each with an area of 1/2(12)(10) = 60:
50+60+60 = 170 sq. units.
The term "cranium" describes your skull.