First of all, the two large rectangles at the side have sidelengths of 48 and 25. The total area of these are 2400cm^2. The front and back triangle have 2*1/2*14*24=336cm^2. Finally, the bottom face has area 14*48=672cm^2.
We sum these together to get 3408cm^2.
:)
By your definition of the binary '*' operator, 3*-2 = 3^2 - (-2)^3 = 9 - (-8) = 9 + 8 =17
Your answer is 17.
Draw a square with sidelength a.
Draw a square with sidelength b such that b
Area of one triangular face =bh/2 = 6*4/2=12cm^2.
Area of triangular faces = 24cm^2.
Area of one rectangular face = bh = 40cm^2.
Area of rectangular faces = 120cm^2.
Add them together. 144cm^2.
For the compound interest question, notice how it is compounded quarterly, which essentially means compounding by an extra $\frac{7}{8}$ percent per quarter. So just raise $100+\frac{7}{8}$ as a percent to the power of 20 (20 quarters becomes 5 years) and multiply that by the starting \$2500. So use the equation $2500*(1+0.035/4)^20$ to evaluate. That gives you an approximate of $2975.85$ dollars.
stonks go brrrr
Please post only one question per thread, but here goes.
For the trig question, then you notice that the hypotenuse of the right triangle is 200, and the height is 40. We then see the angle of elevation is just the sine of 40/200, or simplified: $sin(\frac{1}{5})$.