Answer:
20
Step-by-step explanation:
Pythagorean Theorem: a^2 + b^2 = c^2
21^2 + b^2 = 29^2
441 + b^2 = 841
Subtract 441 on both sides to get b^2 = 400
Take the square root of both sides to get b = 20
Answer:
The cyclist will have traveled 72 kilometers with-in 3 hours.
Step-by-step explanation:
1 mile (s) = 1.60934 kilometer(s)
15 miles = 24.1402// 24 kilometers
by 3 hours:
45 miles = 72/72.4205 kilometers
Answer:
x=-1
Step-by-step explanation:
-2x-3=x
add 2x to both sides
-3=3x
divide both sides by 3
-1=x
cb^2 + ab^2 = ca^2 pythagorean theorem
cb^2 +6^2 = 12^2
cb^2 +36 = 144
cb^2 = 108
cb = sqrt (108)
sin D = opp /hyp
sin D =bc/cd
sin 55 = sqrt(108)/cd
cd = sqrt(108)/sin 55
cd=12.687
cd = 12.7 to three significant figures
Answer:
The equation below can be used to find the length of a foot or forearm when you know one or the other. (length of the foot) = 0.860 • (length of the forearm) + 3.302 If you let y = length of the foot and x = length of the forearm, this equation can be simplified to y = 0.860x + 3.302.
Step-by-step explanation:
