Hello,

-(-5) is also known as just a plain positive 5. When two negatives are multiplied together, they make the number positive. So, the location of -(-5) on a number line would be on the number 5. I hope this helps!

May

8 0

3 years ago

Point B is a point of tangency. Find the radius r of OC.<br> А 9<br> B<br> r<br> n

insens350 [35]

Answer:

Radius, r, is 3.75

Step-by-step explanation:

From the given diagram,

AB = 9

AC = 6 + r

BC = r

Thus applying the Pythagoras theorem, we have;

$/AC/^{2}$ = $/AB/^{2}$ + $/BC/^{2}$

$(6 + r)^{2}$ = $9^{2}$ + $r^{2}$

36 + 12r + $r^{2}$ = 81 + $r^{2}$

collecting like terms,

12r = 81 - 36

12r = 45

r = $\frac{25}{12}$

= 3.75

r = 3.75

The radius is 3.75.

3 0

3 years ago

For which year would this model most likely be sufficient to make a prediction of the population? 1950 2005 2025 2050

lana66690 [7]

Answer:

2005

Step-by-step explanation:

hope this helps

3 0

3 years ago

Find the perimeter of a regular octagon whose side is "a" units

Zinaida [17]

Answer:

I think its 8a because in a regular octagon we have 8 sides.

4 0

3 years ago