O oposto de 2 é 1/2
o oposto de 8 é 1/8
chamando o oposto de 25 de x
x = 1/25
The equation of a circle:
(h, k) - a center
r - a radius
We have:
The center (-3, -4) → h = -3 and k = -4.
The radius is equal the distance between the center of the circle and the origin.
The formula of a distance between two points:
Substitute
therefore r = 5.
Answer:
The answer is C. 45. Here's the work to prove it: c = correct answer, i = incorrect answer;
-2(c + i = 50)
2c - 3i = 75
-2c - 2i = -100
-5i/-5 = -25/-5
i = 5
c + 5 - 5 = 50 - 5
c = 45
There are multiple equations that would fit this description, but one of them could be something like this:
Hope that helped =)
Answer:
0 ≤ u < 7 and 0 > u > - 7 and combining those two we get - 7 < u < 7.
Step-by-step explanation:
The given inequality is |u| - 2 < 5 ....... (1)
We have to solve this inequality.
Now, from the definition of f(x) = |x| we get, f(x) = x, when x ≥ 0 and
f(x) = -x when x < 0.
Hence, for u ≥ 0, the equation of inequality (1) becomes
u - 2 < 5
⇒ u < 7
Therefore, the solution is 0 ≤ u < 7 (Answer)
Again, for u < 0, the equation of inequality (1) becomes
- u - 2 < 5
⇒ u + 2 > - 5
⇒ u > - 7
Therefore, the solution becomes 0 > u > - 7 (Answer)
