Simplify for ez fast points!

-81

Step-by-step explanation:

-3 ^4

The negative is not included in the exponent

- (3)^4

- 3*3*3*3

-81

81

Step-by-step explanation:

(-3)^4

Expand the expression.

(-3) * (-3) * (-3) * (-3)

Multiply a pair.

9 * (-3) * (-3)

Multiply a pair.

(-27) * (-3)

Multiply a pair.

81.

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

maya’s expression will generate the wrong sum because she violated the commutative property.

step-by-step explanation: