nntt
nntt
10-08-2017
Mathematics
contestada
AB= 85m what is the length of CD
Respuesta :
Аноним
Аноним
10-08-2017
CD = x
BC = y
AB = 85
BD = BC+CD = y+x
tan(angle) = opposite/adjacent
tan(28) = BC/AB
tan(28) = y/85
85*tan(28) = y
y = 85*tan(28)
y = 45.1953016912257
tan(angle) = opposite/adjacent
tan(31) = BD/AB
tan(31) = (y+x)/85
tan(31) = (45.1953016912257+x)/85
85*tan(31) = 45.1953016912257+x
51.0731526173427 = 45.1953016912257+x
51.0731526173427-45.1953016912257 = 45.1953016912257+x-45.1953016912257
5.877850926117 = x
x = 5.877850926117
So
CD is roughly 5.877850926117 meters
Answer Link
VER TODAS LAS RESPUESTAS ( 17+ )
Otras preguntas
1. In a compound, chemical energy is contained in the (1 point) a. nuclei of the atoms. b. unbonded electrons. c. bonds. d. movement of the electrons. 2. W
Where is Buddhism widely practiced today? A. Area A B. Area B
what does the number next to isotopes signify?
what two numbers add up to -7 but multiply to -18
The term integration refers to the ability to A. employ different fonts in an e-mail. B. use a variety of search engines. C. select different graphics on
Which statement accurately describes the relationship between cytokinesis and mitosis? a. Mitosis includes interphase and cytokinesis. b. Cytokinesis precedes m
PLEASE HELP ME!!!!!!!!!!!A rectangular hole 4 cm wide and x cm long is cut in a rectangular sheet of metal 9 cm wide and y cm long. The length of the hole is 8
a 550 kg car accelerates from 15 m/s to 25 m/s in 15 s by applying a constant force. how large of a force is exerted? Please show work
Consider the following data set (14,17,37,45,51,52,53,56,56,57,60,63,65,67,89) what are the outliers?
What is the value of x? 3(x - 2) - 5x = 18
