Answer:
(2316 - pi * (r ^ 2))
Step-by-step explanation:
We have the following data:
L = 45 feet
W = 18 + 18 + 24 = 60 feet
Now we calculate the rectangular area:
A = Total area of PF = 45 * 60 = 2700 ft ^ 2
P = patio dimensions = 16 * 24
= 384 ft ^ 2
We will assume it as 'r'
FR Area = pi * (r ^ 2)
AT = A - P - FR
AT = 2700-384 - pi * (r ^ 2) =
AT = (2316 - pi * (r ^ 2))
Therefore, the number of square feet of grass to be purchased is 2316 - pi * (r ^ 2) where r is the radius of the FR.
Answer:
Only options, A and E give 625/n¹² on simplification. The other options do not apply.
(5n⁻³)⁴ = (625/n¹²)
(25n⁻⁶)² = (625/n¹²)
Step-by-step explanation:
625/n¹²
a) (5n⁻³)⁴
According to the law of indices, this becomes
(5⁴)(n⁻³)⁴ = 625(n⁻¹²) = 625/n¹²
This applies!
b) (5n⁻³)⁻⁴
According to the law of indices, this becomes
(5⁻⁴)(n⁻³)⁻⁴ = (n¹²)/625 = n¹²/625
Does Not apply!
c) (5n⁻⁴)³
This becomes
(5³)(n⁻⁴)³ = 125n⁻¹² = 125/n¹²
Does Not apply!
d) (25n⁻⁶)⁻²
This becomes
(25⁻²)(n⁻⁶)⁻² = n⁻¹²/625 = 1/(625n¹²)
Does Not apply!
e) (25n⁻⁶)²
This becomes
(25²)(n⁻⁶)² = 625n⁻¹² = 625/n¹²
This applies!
Answer:
look at the pic below
Step-by-step explanation:
Answer:
42 meters
Step-by-step explanation:
As ΔONM ≅ ΔXYW therefore, YW=NM=42
Step-by-step explanation:
cos^2(t)+sin^2(t)=1
4cos^2(t)/4 + 81sin^2(t)/81 =1
2^2(cos^2(t))/2^2 + 9^2(sin^2(t))/9^2=1
[2cos(t)]^2/2^2 +[ 9sin(t)]^2/9^2=1
since x^2/2^2 +y^2/9^2=1
X=2cos(t) ,y=9sin(t)
X(t)= 2cos(t) here r=2
y(t)=9sin(t)