Write an expression using the product of 7×63

Answer:

104.1

Step-by-step explanation:

Use SOH CAH TOA.

Sine = Opposite / Hypotenuse

Cosine = Adjacent / Hypotenuse

Tangent = Opposite / Adjacent

In this case, the hypotenuse is x, and the side opposite of the 22° angle is 39.  Since we have opposite and hypotenuse, we need to use sine.

sin 22° = 39 / x

x sin 22° = 39

x = 39 / sin 22°

x ≈ 104.1

c. 13/20 pizza because in all is key for addition, so 2/5 + 1/4 = 13/20 pizza

2/5 + 1/4 = 8/20 + 5/20 = 13/20

Answer: c) 13/20 pizza

Answer: 384 in²

Step-by-step explanation: Surface area is the sum of the areas of all of the faces of a three-dimensional figure.

So to find the surface area of a cube, it's important to understand that each face of a cube has the same area. So we can simply find the area of one face of a cube and multiply it by the number of faces which is 6.

To find the area of one face of a cube, we can use the formula for the area of a square.

Area = S²

Since the length of a side is 8 inches, we have (8 in.)² or 8 inches x 8 inches which gives us 64 in.².

Now, since there are 6 sides to a cube, we have (64 in.)² (6) which is equal to 384 inches².

Therefore, the surface area of the cube is 384 in².