Answer:
Step-by-step explanation:
Perimeter of a garden = 2(L+W)
Area of the gerden = LW
L is the length
W is the width
Given
Perimeter = 155ft
Area = 1400ft²
Substitute
1400 = LW
155 = 2L+2W
from 1;
W = 1400/L
Substitute into 2;
155 = 2L + 2(1400/L)
155 = 2L + 2800/L
155L = 2L² + 2800
2L²-155L + 2800 = 0
Factorize
L = 155±√155²-4(2)(2800)/4
L = 155±√24025-22400/4
L = 155±√1625/4
L = L = 155±40.31/4
L = 194.31/4
L = 48.82 feet and;
L = 155-40.31/4
L = 28.67ft
Hence the approximate length of the garden is at least 28.67 feet and at most 48.82 feet.
Answer:
Can you take a clearer photo please or just take a picture of the actual problem up closer ?
Step-by-step explanation:
Answer:
534. 75
Step-by-step explanation:
let the income of kellys sister be x
kellys income=x+15% of x
=23x over 20
x+23x/20=999. 75
or, x=465
kellys income=23×465/20
=534. 75
Answer:
The degree of (f × g × h)(x) is 7.
i.e option a ) 7
Step-by-step explanation:
Given:
To Find:
Degree of (f × g × h)(x) = ?
Solution:
For multiplication of given function we require
Law of indices:
Distributive Property:
(A + B)(C + D) = A (C + D) + B(C +D)
= AC + AD + BC +BD
Now,
Degree is highest power raised to the variable.
Therefore here highest power raised to the variable is 7
Therefore degree of (f × g × h)(x) is 7.