What is the value of the expression 3^4 – 4^3?
a.
17
b.
0
c.
–1
d.
69

The correct answer is A) 17

Why? Let's see ---

If an exponent means to multiply the base as many times as the exponent says, let's start with that.

3 x 3 x 3 x 3 = 81

4 x 4 x 4 = 64

Now we subtract each answer from each other -

81 - 64 = 17

↑   ↑   ↑  Hope this helps! :D

c. 27 units.

step-by-step explanation:

we are told that in circle a, ∠bae ≅ ∠dae.

we can see from our given diagram that in and ;

, as these are radii of our given circle.

therefore, by sas congruence postulate.

hence, side be will be equal to side de as corresponding parts of congruent triangles are congruent. so we can set an equation to find the value of x as:

now let us substitute x=17 in the expression for the length of be.

therefore, length of be will be 27 units and option c is the correct choice.

but which class are u may know that first