<span>−<span>1/<span><span>(<span>y+1</span>)</span><span>(<span>y<span>−1</span></span>) is the answer</span></span></span></span>
Answer:
d
Step-by-step explanation:
3 shirts that each costs s dollars would be 3s
jeans is $30, pair of shoes is $50, add $30+$50 and you'll end up with $80
so, an expression in the simplest form that represents the total cost would be:
d. 3s+80
First we define a variable:
x: length of the shortest side of the triangle.
Then, using the Pythagorean theorem we have:
(x + 8) ^ 2 = x ^ 2 + (x + 7) ^ 2
Rewriting we have:
x ^ 2 + 16x + 64 = x ^ 2 + x ^ 2 + 14x + 49
Clearing x we have:
64 - 49 = 2x ^ 2 - x ^ 2 + 14x - 16x
64 - 49 = 2x ^ 2 - x ^ 2 + 14x - 16x
15 = x ^ 2 - 2x
x ^ 2 - 2x - 15 = 0
The roots of the polynomial are:
x = -3
x = 5
We discard the negative root because it is a dimension.
Then, the perimeter is:
P = (x + 7) + (x + 8) + x
P = (5 + 7) + (5 + 8) + 5
P = 30
Answer:
the perimeter of the triangle is:
P = 30
6,300kg=6,300,000g
6,300,000/0.0007=9,000,000,000 grains of sand
Answer:
25cm
Step-by-step explanation:
first find the perimeter of the dmaller triangle. perimeter=add all sides
3+5+7=15cm
15cm=⅜
? = ⅝ (cross multiply)
15cm×⅝×8/3=25cm
perimeter of the larger triangle is 25cm