Answer:
The original area would be multiplied by the scale factor of 2² to get the new area.
Step-by-step explanation:
If you double the radius lets so lets do an example
(a=πr²) so
if x is the radius the area would be x²π
double the radius so 2x then the area would be
(2x)²π so 4x²π
4x²π/x²π= 4 so its 4 times greater or
D the last answer or The original area would be multiplied by the scale factor of 2² to get the new area.
Answer:
1) x = 15
Step-by-step explanation:
We use the Pythagorean thm for these questions. Where a and b are the legs (So order doesn't matter), and where c is the hypotenuse
1)
a² + b² = c²
9² + 12² = x²
81 + 144 = x²
x² = 225
You square root each side so you can get rid of the exponent on x.
x = 15
For this case we must solve the following equation:
Subtracting 2 from both sides of the equation we have:
Equal signs are added and the same sign is placed.
Multiplying by 4 on both sides of the equation we have:
Thus, the solution of the equation is
Answer:
10 cm would stay as a 10 cm
14cm would round down to a 10
Answer:
-20 3/4, -15 1/2, -14 3/4,
Step-by-step explanation: