Answer:
see below
Step-by-step explanation:
the pattern between the numbers is that you add;
4+1=5
5+2=7
7+3=10
10+4=14
14+5=<u>19</u>
<u>19</u>+6=<u>25</u>
hope this helps
The value of T is
OR 
Step-by-step explanation:
Assumption: find the values of t
1. Equation is
+20t+65
2. Identify values of a, b and c
3. Write the quadratic formula
t = 
4. Substitute the values of a, b and c in the formula
t = 
t = 
5. Solve to find the possible values of t
t = 
OR
Keywords: Quadratic
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Given that mean=56.1 and standard deviation=8.2, P(x>67.5) will be found as follows:
The z-score is given by:
z=(x-μ)/σ
thus the z-score will be given by:
z=(67.5-56.1)/8.2
z=11.4/8.2
z=1.39
thus
P(z=1.39)=0.9177
thus:
P(x>67.5)=1-P(z>0.9177)
=1-0.9177
=0.0823
Answer: A. 0.0823
The work inside parentheses cannot be carried out as shown, so the next approach to consider is multiplying the expressions inside the parentheses by -5 and 5 respectively:
-5 + 25x - 40x - 10 = -4x - 8x (Are you sure it's really "-4x - 8x"?)
Combining the x-terms:
-5 - 15x - 10 = -12x
Combining all like terms: -15 = 3x, so that x = -5 (answer)