Answer:
66
Step-by-step explanation:
the shape is a trapezium, and the formula for a trapezium is 1/2 times height (a+b) where a and b is the uneven sides and h is the height. all together it is 1/2 times 6 (8+4)
P(a or b)= p(a)+p(b)-p(a and b)
0.7=0.6+p(b)-0.3
p(b)=0.4
p(a or b)= p(a)+p(b)-p(a and b)
=0.6+0.4-0.3
=0.7
Mean= (5+6+5+6+9)/5= 7.2 coins
Explanation: The mean is the average of a data set. Add the numbers from the data set and divide by how many numbers.
Answer:
True
Step-by-step explanation:
Kilo means 1,000 so kilometers means 1,000 meters. If you don't know prefixes it might be kind of confusing because centimeters doesn't mean 100 meters so I'll leave something here.
Kilometers = 1000 meters
1 meter = 10 decimeters
1 decimeter = 10 centimeters
1 centimeter = 10 millimeters
If I have time later I'll attach a visual that could help.
Answer:
1332 i think
Step-by-step explanation:
287+379=666
666*2=1332