Answer:
4a^2-6b^2+12
Step-by-step explanation:
(a^2 - 2b^2 + 3) - (4b^2 - 5) + (3a^2 + 4)
distribute the negative sign to each term in the 2nd expression
a^2-2b^2+3-4b^2+5+3a^2+4
combine like terms
4a^2-6b^2+12
Answer:
First, we substitute k=-2 in the given expression and we calculate the numerical value.
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Answer:
The answer to your question is A = 441.50 km²
Step-by-step explanation:
Data
Big triangle Small triangle
base = 33 km base = 19 km
height = 40 km height = 23 km
Process
1.- Calculate the area of the big triangle
Area = base x height / 2
Substitution
Area = 33 x 40 / 2
= 1320 / 2
= 660 km²
2.- Calculate the area of the small triangle
Area = 19 x 23 / 2
= 437 / 2
= 218.5 km²
3.- Subtract the small area to the big area
Share area = 660 - 218.5
= 441.50 km²
Answer:
748 in^3.
Step-by-step explanation:
This consists of a triangular prism and a rectangular cuboid .
Volume of the prism = .1/2 * 8 *11 * 17 = 748 in^3
Volume of the cuboid = 5*8*17 = 680 in^3
Therefore the volume of the whole figure
= 680 + 748 = 1428 in^3.
Answer:
3/4 or 0.75
Step-by-step explanation:
I don’t get all the other stuff but 1/4 + 1/2 = 3/4
