$(x+3)^{\frac{1}{2} } -1=x\\(x+3)^{\frac{1}{2} } =x+1\\squaring\\x+3=x^2+2x+1\\\\x^{2} +2x-x+1-3=0\\x^2+x-2=0\\x^2+2x-x-2=0\\x(x+2)-1(x+2)=0\\(x+2)(x-1)=0\\x=-2,1$

8 0

3 years ago

Mary is doing research on bird migration. Last week she counted 12 migration birds in her yard. This week she counted 10. What w

Maksim231197 [3]

16.67% decrease in birds per weeks

3 0

3 years ago

Suppose that an object whose is 10th weighs 50 N find the weight of an object whose is 6 kg

Nady [450]

Weight is another term for the force from mass multiplied by acceleration due to gravity, the equation being expressed as $f = ma$ , being force, mass, and acceleration respectively.

We already have 2 parts of the equation, $50 = 10a$

Acceleration due to gravity on the planet is $5 m/s^2$

Plug it into the equation $f = ma$

$f=6kg$ x $5m/s^2$

Weight or force from gravity is 60N.

8 0

3 years ago