Answer:
4. A
8. D
9. B
Step-by-step explanation:
4. started with 10 points: +10
lost 20 points: -20
won 45 points: +45
10-20+45
8. 11-(-8)
=19
9. 100-(-50)-2
=150-2
=148
PLS GIVE BRAINLIEST
If E=[-1,0,1,2,3,4] and F=[3,4,5,6,7,8] what is E U F?
KatRina [158]

All elements from set E and from the set F. The same elements are only once.
Answer:
1.8 in.
Step-by-step explanation:
Hi there!
<u>1) Determine the radius of the base</u>
where r is the radius of the base and h is the height of the cone
Plug in the known values (h=4.2, V=3.6)

Isolate r; divide both sides by 4.2

Multiply both sides by 3

Divide both sides by π

Take the square root of both sides

<u>2) Determine the diameter</u>
Now that we have the radius, to find the diameter, multiply r by 2:

Therefore, the diameter is 1.8 in. when rounded to the nearest tenth.
I hope this helps!
Associative property, that's what Google said