Answer:
32 seconds
Step-by-step explanation:
For some number of seconds (s), Tess's essay length (t) will be ...
t = 42 +1.3s
and Margo's essay length (m) will be ...
m = 122 -1.2s
We will have t > m when ...
t > m
42 +1.3s > 122 -1.2s
2.5s > 80 . . . . . . . . add 1.2s-42
s > 32 . . . . . . . . . . . divide by 2.5
After 32 seconds, Tess's essay will exceed Margo's in length.
Answer: B and D
Step-by-step explanation:
Adding the 2 equations will eliminate x because -4x + 4x = 0
so we get
-14y = 28
y = -2
plug this into the second euqtion:-
4x + 14(-2) = -28
4x - 28 = -28
x = 0
answer is x = 0 , y = -2
Answer:
{4H, 4T}
Step-by-step explanation:
The list that contains only the outcomes where the number cube is more than 3 is given below:
Sample space is
= {1,2,3,4}
The results more than 3 is
S = {3}
After this, the sample space i.e. C when the coin is fippled is
C = {H, T}
Here H denotes the Head
T denotes Tail
So, the outcomes would be
= {4} + {H,T}
= {4H, 4T}
2^3 * 2^-5 = 2^(3 + (-5) = 2^(3 - 5) = 2^-2
