Answer:
Circumference: 64π
Ratio: 1 : 4
Measure of ∠xoy: π/2
Step-by-step explanation:
We are given an arc length of 16π. Since it's in terms of pi, we use the formula
S = rФ where r is the radius, and Ф is the measure of the angle in radians (in terms of pi)
We are given S = 16π and r = 32, plug those in and find Ф
16π = 32Ф
16π/32 = Ф
π/2 = Ф
This is the measure of the central angle.
The angle is π/2 radians. There are 2π radians in the circumference, so the circumference is 4 times the arc length created by the central angle. (There are 4 halves in 2) so the ratio of the arc length tothe circumference is 1 : 4
The formula for circumference is C = 2πr, where r is the radius, so we hace
C = 2π(32) = 64π
The answer is 1400 because he got 400$ on the third to last week, 500$ on the second to last week, and 500$ on the last week. that adds up to 1400$
<span>cy+3=6d-2y
cy + 2y = 6d - 3
(c + 2)y = 6d - 3
y = (6d - 3)/(c + 2)</span>
Answer:
0.884
Step-by-step explanation:
You first do the exponents, do the foil, combine like terms and In the end your result will be 0.884.
Answer: 67.500 ft²
Explanation:
1) Name the dimensions using variables:
y: length of the rectangular field
x: widht of the rectangular field
2) Model the amount of fence used by the two equal pastures:
two sides and one internal fence: 2x + x = 3x
two lengths: 2y
⇒ 3x + 2y = 1800 ← linear feet of fence
y = 1800 / 2 - 3x/2 ← solving for y
y = 900 - 3x/2
3) Area of each pasture
A = x(y/2) ← half ot xy
A = x (900 - 3x/2) ← replacing y with 900 - 3x/2
A = 900x - 3x² / 2 ← using distributive property
4) Maximum area ⇒ A' = 0
A' = 900 - 3x ← derivative of the polynomial 900x - 3x² / 2
900 - 3x = 0
⇒ 3x = 900
⇒ x = 900/3
⇒ x = 300
4) Determine y
y = 900 - 3x/ 2 = 900 - 3(300)/2 = 900 - 450 = 450
5) Area of each pasture
A = xy/2 = 300 × 450 /2 = 67500 ← final answer