Answer:
4050 cm²
Step-by-step explanation:
This is a question of scale factors:
The radius of the larger circle is 9× that of the smaller circle;
This is the linear scale factor of the enlargement of the smaller to larger circle;
The scale factor of the area pertains to 2 dimensions so the scale factor will be the square of the linear scale factor, which is:
9² = 81
The area of the larger circle is found by the area of the smaller circle multiplied by this number:
50 × 81 = 4050
Basically just substitute t+2 for every x
f(t+2)=3(t+2)+9
f(t+2)=3t+6+9
f(t+2)=3t+15
Idk where the square roots are supposed to come from tho
Half of 40 = 0.5 x 40 = 20 .
One fourth of 20 is smaller than 20.
You don't even have to calculate it.
Answer:
100+90+7
200+20
Step-by-step explanation:
609 hours is how long it takes so add seven minutes to that and the totall time is 609 hours 7 minutes
