The Cold War 1945-<span>The Cold War 1945-1970</span>
Answer:
John is 31
Ella is 25
Step-by-step explanation:
Let sister's age be x, then John's age is (x + 6). So from sentence 2,
(3x) - 2(x + 6) = 13
3x - 2x - 12 = 13
x = 13 + 12 = 25
and x + 6 = 31
Answer:
[2.1, 3]
Step-by-step explanation:
Given the height of the ball modelled by the equation;
h(t) =-4.9t^2+25t+6
Required
Domain for 36.9m
To get that we are to find the value of the input variable which is the time t when h(t) = 36.9
Substitute
36.9 = -4.9t^2+25t+6
multiply through by -10
-369 = 49t²-250t-60
49t²-250t-60 + 369 = 0
49t²-250t+309 = 0
Find the domain of t
49t²-147t-103t+309 = 0
49t(t-3)-103(t-3) = 0
(49t-103)(t-3) = 0
49t - 103 = 0 and t-3 = 0
49t = 103 and t = 3
t = 103/49 and t = 3
t = 2.1 and t = 3
Hence the reasonable domain for 36.9m is [2.1, 3]
False.
2/3 does not equal 5/6
10/5 is 2
15/5 is 3
that's how I simplified the left
the right is already in lowest form
All you have to do for each question is do (population times growth, the answer of that times 25 plus the original population and that’s 2025 population.
