Answer:
One leg - 15 inches
Second leg - 36 inches.
Step-by-step explanation:
One leg - x inches.
Second leg - (x + 21) inches.
Hypotenuse - 39 inches.
Using Pythagorean theorem
x² + (x + 21)² = 39²
x² + x² + 2*21x + 21² = 39²
2x² + 42x - 39² + 21² = 0
2x² + 42x - 1080 = 0
x² + 21x - 540 = 0
(x - 15)(x + 36) = 0
x = 15, x = - 36
We can use only positive value.
One leg - x inches = 15 inches
Second leg - (x + 21) inches = 15+21=36 inches.
Answer:
1.81436948 Kgs
Step-by-step explanation:
- Find the unit rate of kilograms and lbs (1lb - 0.45359237 Kgs)
- Multiply the unit rate by your number of pounds 4 x 0.45359237
- answer is 1.81436948 Kgs
Answer:
1 * 10^3
Step-by-step explanation:
1440 can be rounded off to the nearest hundred as 1400.
1440 can be rounded off to the nearest thousand as 1000.
1000 = 1 * 10^3
Answer:
630
Step-by-step explanation:
259 rounded to the nearest 10 is 260
372 rounded to the nearest 10 is 370
260+370=630
Hope this helps!
Answer:
(0 + 20x) > (80 + 10x)
Number of weeks > 8 weeks
Step-by-step explanation:
Given the following :
Initial Pilar = 80 ; when marisol started, marisol had 0 then,
Pilar adds 10 each week for x weeks
Marisol adds 20 each week for x weeks
Pilar:
Initial + Increment * number of weeks
80 + (10)x
Marisol :
0 + 20x
When marisol will be greater than pilar's function
Marisol > pilar
A.) (0 + 20x) > (80 + 10x)
20x > 80 + 10x
20x - 10x > 80
10x > 80
x > 8
The number of seashells in marisol collection will be greater Than seashells in pilar's collection after 8, weeks