Answer:
15 ft
Step-by-step explanation:
Hi, the illustration for the problem is a right triangle with:
hypotenuse (C)= the length of the ladder = L
horizontal side(A) = distance from bottom of the ladder to the building = L - 6
vertical side(B) = distance from the top of the ladder to the bottom of the building = L - 3
So, we can use Pythagoras formula:
A2 +B2= C2
(L – 6 )² + (L-3)² = L²
L²-12L+36+L²-6L+9 =L²
L2 -18L+45 =0
APPLYING QUADRATIC FORMULA WE OBTAIN:
L =15 OR L=3
If L=3
Vertical side = L-3 = 0 (Length can´t be 0)
So L=15
Answer:
2 & a half bottles
Step-by-step explanation:
kami has 7 liters of water
Now,
each bottle holds 2.8 liters
∴she filled = 7/2.8 bottles
= 2.5 bottles
≈ 3 bottles
3(x+6) is the way to write this
Answer:
mean: 23 median: 29
Step-by-step explanation:
To find the mean (average) you have to add all numbers up and divide that number by how many numbers there are in the set. To find median, put all numbers in order from least to greatest, then cancel out one from each side until you get the number in the middle.