Use the rules of exponents to simplify the expressions.
(-2) to the power of -5

(-2) to the power of -10

Using the negative exponent rule you move -2^-10 to the numerator and reverse the sign of the exponent to get:

(-2^-5 * -2^10) / -1

When you multiply the same number with different powers add the exponents.

Now you have -2^-5 + 10 / -1

Simplify: -2^5 / -1

Dividing a negative by a negative becomes positive:

Now you have 2^5, which equals 32.

x = 22.5

Step-by-step explanation:

→ Remember how many degrees the point to a radius is

90°

→ Set up an equation

x + 3x = 90

→ Simplify

4x = 90

→ Divide both sides by 4

x = 22.5