Answer:
the second statement is not true
Step-by-step explanation:
If x squared equals 100, it doesn't mean necessarily that x is positive ten, since you can get 100 also by squaring the value (-10):
(-10)
The second statement is ignoring the possibility of x being a negative ten which also gives 100 as answered when squared.
Answer:

Step-by-step explanation:
In the figure you can identify up to 3 straight triangles.
To solve the problem, write the Pythagorean theorem for each triangle.
<em>Triangle 1</em>

<em>Triangle 2</em>

<em>Triangle 3</em>

Now substitute equation 2 and equation 3 in equation 1 and solve for y.






substitute the value of y in the second equation and solve for z





Answer:
they would each get 1/4 of a cookie
Step-by-step explanation:
<span>if they already have 200 then the "must collect" 800 to reach 1000</span>