6. Can a cone be called a pyramid? A Yes, because they both have bases and vertex.
B. Yes, because a cone has a circular base.
C. No, because a cone has a curved surface while a pyramid has a triangular faces.
D. Maybe, because they are both solid figures
7. What is the difference between a plane and solid figure?
A. Plane figure is two dimensional while solid figure is three dimensional.
B. Plane figure has height while solid figure doesn't have.
C. Solid figures have circular bases while plane figure has polygonal base.
D. All Solid figures are made up of connected line segments while plane figures are not
Look at the two objects below. How do they differ?​

no not all of them.

step-by-step explanation:

some of them have a square base.

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places