1) a 15 foot flagpole casts an 11 foot shadow. at the exact same time a 28 foot tree casts a shadow. which proportion would correctly find the length of the tree's shadow? a) x 28 = 11 15 b) x 28 = 15 11 c) 28 x = 11 15 d) x 15 = 11 28

D

The model involves similar triangles with the ratios of corresponding sides being equal

let x be the length of the tree's shadow, then

= ( cross- multiply )

15x = 11 × 28

13

step-by-step explanation:

169-1=168

168-3=165

165-5=160

160-7=153

153-9=144

144-11=133

133-13=120

120-15=105

105-17=88

88-19=69

69-21=48

48-23=25

25-25=0

since it took 13times to completely subtract it hence its square root is 13

  or  

sin y = 7/q

7 is the opposite side length, q is the hypotenuse

tan y = 7/r

7 is the opposite side length, r is the adjacent side length

using sohcahtoa ^^^^

cos y = adjacent/hypotenuse

cos y = r/q