Answer:
Option C
width = 6 units; length = 10 units
The Length and Width of Rectangle is 10 units and 6 units respectively
Step-by-step explanation:
<u>For a </u>g<u>iven Rectan</u>g<u>le:</u>
Length (l) = x + 2 and
Width (w) = x - 2 and
Area = 60 square unit
Now,
<u>A </u><u>=</u><u> </u><u>LW</u>
A = (x + 2) × (x - 2)
60 = x² - 2x + 2x - 4
60 = x² - 4
x² - 4 = 60
Add 4 both side we get,
x² - 4 + 4 = 60 + 4
x² = 64
Square root both side
√x² = √64
x = 8
Here, we get the value of x is 8
Now,
L = x + 2
L = 8 + 2 = 10
W = x - 2
W = 8 - 2 = 6
Thus, The Length and Width of Rectangle is 10 units and 6 units respectively
<h3>
<u>FOR </u><u>VERIFICATION</u><u> </u><u>ONLY:</u><u>-</u></h3>
A = (x + 2) × (x - 2)
60 = (8 + 2) × (8 - 2)
60 = (10) × (6)
60 = 60
Here, L.H.S = R.H.S
Hence Proved!
<u>-TheUnknownScientist</u><u> 72</u>
Sarah had 3 cookies her friend asked her if she could have half of her total amount of cookies. How many cookies will Sarah give to her friend?
On the month of February, 2,940 books will be published. However, if February falls on a leap year which has 29 days, about 3,045 books will be published.
Answer:
21.27 years
Step-by-step explanation:
22800 = 9900(1.04^t)
22800/9900 = 1.04^t
76/33 = 1.04^t
ln(76/33) = t×ln(1.04)
t = 21.27