What are the answers for 31, 32, and 33? 28. The scale for a blueprint is 1:50nc

Question

What are the answers for 31, 32, and 33?

28. The scale for a blueprint is 1:50nch 31. Find AX. (5 pts) What is the length on the blueprint for a bathroom wall that is 150 inches long? (3 pts) 29. A star-shaped garden has the dimensions shown. A scale drawing of the garden has the dimension shown. Find to the nearest hundredth of an i 32. To find the height of a billboard, a student nch. (3 pts) 2.25 in. x in. placed a mirror on the ground 13 meters from its base. The student was 14.5 meters from the billboard before being able to see the top of the billboard in the mirror. If the student's eye level is approximately 1.8 meters, how tall is the billboard? (5 pts) 33. A landscaper is making a scale drawing of a rectangular courtyard. The courtyard is 10 yards by 13 yards. If the landscaper uses a scale of 1 in :4 ft, what should be the length and width of the drawing? (5 pts) 30. Find DE. (5 pts) 0x 2 21 25 C 12x 2 2

Explanation / Answer

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31. We know that in the similar triangles we have

25/(25+3x) = 4x/(4x+12)
100x+300 = 100x+12x^2
12x^2 = 300
x^2 = 25
x = +/-5
x=5, because x has to be +ive

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