It's 10 feet long and has a 30 foot perimeter
Step-by-step explanation:
ln(x) + ln(x + 25) = 0
ln(x(x + 25)) = 0
ln(x² + 25x) = 0
ln(x² + 25x) = ln(1) , x ≥ 0
x² + 25x = 1
x² + 25x + 625/4 = 1 + 625/4
(x + 25/2)² = 629/4
x + 25/2 = ±√(629/4)
x = ( -25 ±√629)/2
x = (-25 - √629)/2 atau ( -25 + √629)/2
(-25 - √629)/2 ≥ 0 NOT PROVED
(-25 + √629)/2 ≥ 0 PROVED
Solution → x = (-25 + √629)/2
Answer:Total amount contributed by principal = 4×128 = $512
Step-by-step explanation:
In 4 weeks, the school raised $2560 for a health and fitness awareness students collected donations in 5 days each week. Total number of days for which collection was made
= 5×4 = 20 days
The principal agreed to make one donation that was the same as the amount collected in a day each week. Let amount per day be x since all days are of equal amount, this means
A week = 5x
4weeks = 20x
20x = 2560
x = $128
The principal contributed $128 in each week
Total amount contributed by principal = 4×128 = $512
Answer:
x = 9.7
Step-by-step explanation:
Reference angle (θ) = 68°
Opposite = 24
Adjacent = x
Apply, the trigonometric function, TOA which is:
Plug in the values
Multiply both sides by x
Divide both sides by tan 68
x = 9.69662942
x = 9.7 (nearest tenth)