Answer:
The answer is 10kg
Step-by-step explanation:
First use the formula weight=mass*acceleration of free fall(g), to find the g first and use back the formula to find the mass off the object.
Answer:
Option B) (7x+4)(7x+4) is correct
The product result in a perfect square trinomial is

Step-by-step explanation:
( using
)
( using
)


Therefore 
which is a perfect square trinomial
A trinomial is a perfect square trinomial if it can be factored into a binomial multiplied to itself. In a perfect square trinomial, two terms will be perfect squares.
Option B) (7x+4)(7x+4) is correct
The product result in a perfect square trinomial is

The two equal sides of isoscles triangle = x+2 cm
Since there are two sides, x+2 repeats twice
The third unequal side = x+6 cm
Perimeter of triangle = 385 cm
Sum of all three sides = perimeter of triangle
x + 2 + x + 2 + x + 6 = 385
3x + 10 = 385
3x = 385 - 10
3x = 375
x = 375/3
x = 125
So the two equal sides = x + 2 = 125 + 2 = 127
The third side = x + 6 = 125 + 6 = 131
Perimeter = 127 + 127 + 131 = 385
Hence proved
Answer:
x=32 y=35
Step-by-step explanation:
So percent means parts out of 100
x%=x/100
2 dimes=2 times 10 cents=20 cents
1 dollar=100 cents
20 cents out of 100 cents
20 cents/100 cents=20/100=20%