Evaluate the expression x^4 when x=7

The expression is equal to 2,401.

Substitute 7 for x into the expression.

x⁴

7⁴

7 to the fourth power means that 7 is being multiplied by itself 4 times. Therefore:

7⁴=7×7×7×7

7×7×7×7=2,401

(2x + 16) + (x) = 180

step-by-step explanation:

given,

abcd is a quadrilateral inscribed in a circle

angle a is labeled x plus 16, (x + 16)

angle b is labeled x degrees, (x)

angle c is labeled 6x minus 4, (6x – 4)

angle d is labeled 2x plus 16, (2x + 16)

what equation can be used to solve for angle b?

we know that the sum of the opposite angles of a simple quadrilateral inscribed in a circle is 180 degrees.

angle b is opposite angle d

therefore, angle b + angle d = 180

(x) + (2x + 16) = 180 

same as (2x + 16) + (x) = 180