The surface area of the cube can be found by using the expression 6s to the second power. What is the surface are of a cube with the side length of 1/3 ft. Rewrite the expression replace the letter with a number use order of operations and evaluate

in simplified version   it would be x ≤-4

step-by-step explanation:

multiply each term in x ≤-4 by -1

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

m∠cdf = 43° , m∠gdf = 114°, m∠gde = 23°, m∠edh = 23° , m∠cdh = 157°

step-by-step explanation:

since, it is given that de bisects the angle gdh ⇒ de divides the angle gdh into two equal angles.

⇒ m∠gde = m∠edh

⇒ 8·x   - 1 = 6·x + 5

⇒ x = 3

so, m∠gde = 8·x - 1 = 23°

and m∠edh = 23°

now, it is given ∠cde is an straight angle so, m∠cde = 180°

⇒ m∠cdf + m∠fdg + m∠gde = 180°

⇒ 43° + m∠fdg + 23° = 180°

⇒ m∠fdg = 114°

again, m∠cde = m∠cdh + m∠edh = 180°

m∠cdh + 23° = 180°

⇒ m∠cdh = 157°