Answer:
c
Step-by-step explanation:
Answer:
see below
Step-by-step explanation:
8- 2x - 5- 13x = 6
Combine like terms
-15x+3=6
Subtract 3 from each side
-15x+3-3=6-3
-15x = 3
Divide each side by -15
x = 3/-15
x = -1/5
Check
8 - 2(-1/5) -5 -13(-1/5) = 6
8 + 2/5 -5 +13/5 = 6
3 + 15/5 = 6
3+3=6
6=6
Answer:
Hailstone remained in the cloud for 25 seconds.
Step-by-step explanation:
Radius of a hailstone varies directly with the duration for which it was in the cloud.
Let the radius of the hailstone is 'r' and it was in the cloud for 't' seconds.
r ∝ t
r = kt [ k is the proportionality constant]
If r = 0.5 inches and t = 10 seconds
Then, 0.5 = k × 10
k =
k = 0.05
Now we have to find the duration t for which hailstone was in the cloud having radius = 1.25 inches.
1.25 = 0.05 × t
t =
t = 25 second
Therefore, hailstone remained in the cloud for 25 seconds.
Without seeing the graph, it's impossible to tell. The same can be said if we don't know the function rule. However, we can rule out three non-answers.
Choice B is false because the interval [1,3] has f(x) below zero but the rest of the interval to the right of x = 3 has f(x) not below zero.
Choice C is false. The value x = -1 leads to f(x) = 0 which is not greater than 0
Choice D is false because the values 8 and 4 are positive
After eliminating B, C, & D, we are left with choice A as the answer.
You do 1.44 - 1.438 which the difference is .002