Option B, (x+4)(x^2-4x+16)
Answer:
The result is about 70.9 degrees
Step-by-step explanation:
Easy for a calculator. If you're not using a calculator, it's much more tedious!
There is an inverse sine key on your calculator, but you may have to press a key (likely labeled 2nd or INV) first. The attached image shows a TI-83 display. To get the inverse sine, I first pressed the yellow 2nd key, then the sin key.
Check MODE first to make sure you're measuring angles in degrees (if that's what you want!). Some calculators display angle mode with a small letter at the top of the display, D, R, or G usually.
The left side of the equation produces just x.

Answer:
Hi there!
Your answer is:
x -15 < 75
Step-by-step explanation:
She has <$75
x -15 < 75
X represents the unknown value of her amazon gift card.
Hope this helps!
x = side length
Area of a square = x^2
Area of a cube = x^3
The squaring operation is directly tied to the geometric shape of a square. The naming is not a coincidence. The same can be said about the cubing exponent being connected to a 3D cube in geometry.
Notice how x^3 can be written as x^2*x. Buried inside the volume of a cube formula is the area of a square. We can effectively rewrite that second equation as
volume of a cube = (area of a square)*x
where x is the side length of the cube and square
This idea of tying together the volume and area like this will be helpful when setting up other volume formulas (eg: volume of a prism).