Answer:
b
Step-by-step explanation:
These are the answers lol can I get brainliest
1. 3.81 = 3.8 because 8 is in the tenths place and you rounded it. 1 is less than 5 so the number stays the same.
2. 72.27 = 72.3 because 2 was in the tenths place and you rounded it by 7. 7 is more than 5 so the number changes to 3.
The number beside the number you want to round on the left must be equal or more than 5.
3. 167.79 = 167.8 4. 67.04 = 67 5. 1.356 = 1.36 6. 0.048 = 0.05
7. 8.333 = 8.33 8. 1.9973 = 2 9. 7.4 = 7 10. 171.68 = 172
11. 0.0018 = 0 12. 600.55 = 601
Answer:
188.5 cm^2
Step-by-step explanation:
a) Your volume is correct.
b) The curved surface area of the cone is called the lateral area.
Its formula is:
LA = (pi)rs,
where pi is 3.14159...
r = radius of the base
s = slant height of the cone
Here, r = 6 cm, and s = 10 cm
LA = (3.14159)(6 cm)(10 cm)
LA = 188.5 cm^2
we will check each options
option-A:
The modulus represents the distance between the complex number and the origin
we know that modulus is a kind of distance
For example: if we have to find modulus of x+iy
we get

that is also distance between (0,0) and (x,y)
so, this is TRUE
option-B:

It is also similar to Pythagoras theorem
so, this is also TRUE
option-C:
we got modulus formula

we know that value of sqrt can never be negative because it will always result in positive value
so, this is FALSE
option-D:

It is also similar to absolute value
so, this is TRUE