Simplify (5+1)^2-(12+3^2)÷3

2 answers:

7 0

Use BEDMAS
B: Brackets ()
E: Exponents ^,
D: Division ,
M: Multiplication,
A: Addition
S: Subtraction

Explanation
(6^2)-(15^2)*3
6^2= 36
15^2= 225
36 - 225 = -189
-189*3= -63

=-63

lara31 [8.8K]4 years ago

6 0

Answer:

Step-by-step explanation:

Use the order of operations to solve:

(5+1)^2 - (12+3^2) /3

= 6^2 - (12+9) /3

= 36 - 21 /3

= 36-7

= 29

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a. The volume is multiplied by 4

b. The volume is doubled

Explanation

a. The volume of a cone with radius r and height h is $\pi r^2 h/3$ . If the radius is doubled, the new volume will be $\pi (2r)^2h/3$ , which is equal to $4\pi r^2h/3$ . This means that the volume is multiplied by 4.

b. The volume of a cone with radius r and height h is $\pi r^2 h/3$ . If the height is doubled, the new volume will be $\pi r^2(2h)/3$ , which is equal to $2\pi r^2 h/3$ . This means that the volume is multiplied by 2.