Answer:
160π cm²
Step-by-step explanation:
The area of the shaded region is
area of outer circle - area of inner circle
A = πr₁² - πr₂²
r₁ is the radius of the outer circle = 10 + 3 = 13 cm
r₂ is the radius of the inner circle = 3 cm
A = π × 13² - π × 3²
= π(169 - 9) = 160π cm² ≈ 502.65 cm² ( to 2 dec. places )
Answer:
x = 15
Step-by-step explanation:
1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 +13 + 14 + 15 = 120
The number x is a positive integer.
Answer:
5940
Step-by-step explanation:
495 x 12 = 5940
There are 9 toy trucks in each group.
27 divided by 3 is 9. Therefore when you divide the trucks up in EQUAL groups the answer has to be 9.
Answer:
29. A.
1. its between B and C I think I'm not totally sure just guess on it try your best.
30. B.