Asked by Ashley

The area of a triangle varies jointly as its base and altitude. By what percent will the area change if the base is increased by 15% and the altitude decreased by 25%?
Answered by Zoey
The intensity of illumination at a given point is directly proportional to the intensity of the light source and inversely proportional to the square of the distance from the light source. If a desk is properly illuminated by a 74.0 w lamp 8.00 ft from the desk, what size lamp will be needed to provide the same lighting at a distance of 12.0 ft?
Answered by Anonymous
help me solve this
a = 2 (b+c) solve for c
Answered by ALYZA
The area of a triangle A varies jointly as the measures of its length of its base B and its altitude h. If a triangle with an area of 30 sq. cm. has a base of 12 cm and an altitude of 5 cm, find the area of a triangle with a base of 8 cm and an altitude of 4 cm
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