Answer:
36ml
Step-by-step explanation:
volume = A×h
here A = base area
A = 4cm × 3cm = 12cm²
h= 3cm
volume = A× h= 12cm²× 3cm = 36cm³
36cm³ can hold 36 ml of water.
First step : 3x=6+18
Second step: 3x=24
Answer : X=8
Answer:
10
2/5÷4/3= 10. helpful answer
Answer:
0.78
Step-by-step explanation:
We have the next probability distribution:
X P(X)
0 0.2
1 0.3
2 0.5
As we can see when we add all the probabilites the result is 1. Now calculating the mean we have:

The standard deviation is:

Then using the data that we have:

Then the standard deviation is 0.78
Answer:
72°
Step-by-step explanation:
The required angle of rotation can be found by considering the regular polygon to be inscribed in a circle. Each of its 10 vertices will be separated by a central angle of 360°/10 = 36°. So, the vertices a8 and a4 will be separated by a central angle of (8 -4)(36°) = 144°.
The angle a4-a1-a8 is an inscribed angle, so will have half the measure of the central angle intercepting the a4-a8 arc. The desired angle of rotation to map a4 to a8 is ...
α = 144°/2 = 72°