Can someone please tell me if Question 7 and 8 are right? Can you also pleas explain quickly how?
1 answer:
You might be interested in
The volume of the composite figure is the third option 385.17 cubic centimeters.
Step-by-step explanation:
Step 1:
The composite figure consists of a cone and a half-sphere on top.
We will have to calculate the volumes of the cone and the half-sphere separately and then add them to obtain the total volume.
Step 2:
The volume of a cone is determined by multiplying with π, the square of the radius (r²) and height (h). Here we substitute π as 3.1415.
The radius is 4 cm and the height is 15 cm.
The volume of the cone :
cubic cm.
Step 3:
The area of a half-sphere is half of a full sphere.
The volume of a sphere is given by multiplying with π and the cube of the radius (r³).
Here the radius is 4 cm. We take π as 3.1415.
The volume of a full sphere cubic cm.
The volume of the half-sphere cubic cm.
Step 4:
The total volume = The volume of the cone + The volume of the half sphere,
The total volume cub cm. This is closest to the third option 385.17 cubic centimeters.
Answer:
No, the given function is not an exponential function.
Step-by-step explanation:
The exponential function is defined as
.... (1)
Where a is initial value and b is growth factor.
From the given table it is noticed that the value of y decreased as the value of x increased by 1. The function is in the form of
.... (2)
The function (1) and (2) are not the same type of function.
The table represents the polynomial.
Therefore the required answer is no. The given function is not an exponential function.