We need to multiply Y by 3 since it says "3 times the number".
3Y; next we need to add 4 since it says 4 more.
3y+4; the reason I knew to put it in this order is because it said 4 more than 3 times, which means you add 4 after you multiply.
The expression is 3Y+4
Answer:

Step-by-step explanation:
From the question we are told that:
Sample size 
Mean 
Standard deviation 
Generally 99\% confidence from table is mathematically given by



Generally the equation for 99\% confidence level (CI) is mathematically given by


300=2×2×5×5×3
We observe that 2 and 5 are grouped in pairs and the 3 is left unpaired.
If we multiply 300 by the factor 3 then
300×3=2×2×5×5×3×3
900=2×2×5×5×3×3 which is a perfect square.
∴ Required number is 3
root of 900 =30
Answer:
First, let's find out the sum;
1.30 + 1.25 = 2.55, is rational, so A
Step-by-step explanation:
The reason being this is because, 2.55 is a terminating decimal meaning that the decimal place does not go on forever.
Answer:
Vertex form
Step-by-step explanation:
You convert to vertex form a(x - b)^2 + c . The coordinates of the maxm/minm will be (b, c).
For example find minimum value of x^2 + 5x - 6:-
x^2 + 5x - 6
= (x + 2.5)^2 - 6.25 - 6
= (x + 2.5)^2 - 12.25
The coordinates of minimumm will be (-2.5, -12.25) The values of the minimum of the function is -12.25