A) a bench --- C=2πr, if r=π, then C=2π²=19.74,
if you need to use π=3.14, then C=19.72 ft
cover ---- area =πr²=π³=31.01 ft²
if you need to use π=3.14, then A=30.96 ft²
B) R=2.5r
C=2πR, if R=2.5π, then C=2*2.5π²=5π²=49.35 ft
if you need to use π=3.14, then C=49.30 ft
how much longer = 49.35 -19.74=29.61 ft
Answer:
Y = 2
Step-by-step explanation:
set up: 9y - 2 = 6y + 4
solve for y to get y = 2
Proportion women /men = 2/7 = x/490 7x= 2· 490 :7
X = 2·70 = 140
Answer:
The answer to your question is speed = 81.5 mi/h
Step-by-step explanation:
Data
distance = 230 ft
time = 1.932 s
speed = ? mi/h
Process
1.- Convert the distance to mi
1 mile ----------------- 5280 ft
x ----------------- 230 ft
x = (230 x 1) / 5280
x = 0.044 mi
2.- Convert time to hours
1 h ------------------ 3600 s
x ------------------ 1.932 s
x = (1.932 x 1) / 3600
x = 0.00054 h
3.- Calculate the speed
speed = distance / time
-Substitution
speed = 0.044/ 0.00054
-Result
speed = 81.5 mi/h
Answer:
x, y, 4, 0
Step-by-step explanation:
To determine the inverse of the given function change f(x) to y switch <u><em>x</em></u> and y and solve for <u><em>y</em></u>.
f(x) = sqrt(x - 4)
y = sqrt(x - 4)
x = sqrt(y - 4)
x^2 = y - 4
x^2 + 4 = y
y = x^2 + 4
The domain of the inverse is the same as the range of the original function.
inverse f(x) = x^2 + 4
x^2 + 4 >= 4
x^2 >= 0
x >= 0
The resulting function can be written as inverse f(x) = x^4 + <u><em>4</em></u>, where x >= <u><em>0</em></u>.