The degree is 4 because it is the largest exponent out of all the variables.
Answer:
complex number
Step-by-step explanation:
a + bi is the standard form of a complex number. a is the real part and b is the magnitude of the imaginary part.
Answer:
x =28
Step-by-step explanation:
Divide the numbers
Combine multiplied terms into a single fraction
Eliminate fraction denominators
Simplify
Divide both sides of the equation by the same term
Answers:
- Lateral Area = 108 square km
- Surface Area = 120 square km
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Explanation:
Think of the triangles as the floor and ceiling of this 3D room. The walls are the three rectangular sides.
We have a 9 by 4 wall with area 9*4 = 36 square km
We have a 9 by 3 wall with area 9*3 = 27 square km
We have a 9 by 5 wall with area 9*5 = 45 square km
The lateral area is 36+27+45 = 108
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The two triangles form the base faces of this prism.
Let's find the area of one of the triangles
area = 0.5*base*height = 0.5*3*4 = 6
One triangle has area 6, so both triangles in total have area 2*6 = 12 square km.
The total surface area is therefore 108+12 = 120 square km