Let's call your number n. Twice your number is 2n. The product of your number and twice your number (so n multiplied by 2n) is 128.
Set up an equation:
n × 2n = 128
2n² = 128
Divide both sides by 2:
n² = 64
Square root both sides to isolate n:
n = 8
The question asks for half your number, so just half 8:
8 ÷ 2 = 4.
Half your number is 4.
Answer:
On the oceans of the Earth, gravity and inertia work in opposition, causing tidal bulges on opposite sides of the planet. The moon's gravitational force pulls the ocean's waters toward it on the "near" side of the Earth (the side facing the moon), resulting in a bulge.
Explanation:
One would most likely find a glacier-carved lake in Patagonia
C is the answer both a and b