Volume = 1/3 × pi × r^2 × h
= 1/3 × pi × 5^2 × 18
= 150pi
the answer is A
i am a mathematics teacher. if anything to ask please pm me
Answer:
11
Step-by-step explanation:
Multiply the parenthesis
2*x = 2x
2*5 = 10
2x-10 = 12
Because we subtract 10 to get 12, we add 10 to see the 2x
12+10 = 22
Now 2x = 22
2x=22
2x / 2 = 22 / 2
x=11
Answer:
C. 25
Step-by-step explanation:
16, 20, 25, 50. SAS Similarity Theorem states that if two sides in one triangle are proportional to two sides in another triangle and the included angle in both are congruent, then the two triangles are similar. Therefore, the value of x is 25.
9n = 3n-12
-3n= -3n
6n= -12
divide by 6 = -2 =n
to check.. 9 times -2 = -18 soo.. 3 times -2= -6-12= -18
so it is correct!!
hope it helps :)
Answer:
She should have used One-half (9.4) (11.9) to represent the area of a single triangle
Step-by-step explanation:
The pyramid is composed by 4 triangles and 1 square
area of the square: base² = 9.4²
area of each triangle = 1/2*base*height = 1/2*9.4*11.9
surface area of the pyramid = 4*area of each triangle + area of the square = 4*(1/2*9.4*11.9) + 9.4²
