Simplify the following expression.
1 answer:
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Answer:
Option E ⇒ <u>x = 19</u>
Step-by-step explanation:
See the attached figure.
TRAP is an isosceles trapezoid
The shown angles are supplementary angles
So, the sum of (5x+9) and (4x) is 180
So, 5x+9 + 4x = 180
solve for x
9x + 9 = 180
9x = 180-9 = 171
x = 171/9 = 19
The answer is <u>option E</u>
The surface area of the cube is 64 cm².
<h3 /><h3>What is volume?</h3>Volume is the amount of space that is enclosed within a container.
To calculate the surface area of the cube, we use the relation below.
Formula:
- A = 6V
............ Equation 1
Where:
- A = Surface area of the cube
- V = Volume of the cube.
From the question,
Given:
- V = 35 cm³
Substitute this value into equation 1
- A = 6(35)
- A = 6(10.6999)
- A = 64.2
- A = 64 cm²
Hence, The surface area of the cube is 64 cm².
Learn more about volume here: brainly.com/question/1972490