Answer: 1/3x(22-7)=5 so the answer is 22.
Answer:
D = -4
E = 2
Step-by-step explanation:
The procedure for completing the square method is given as:
x2 + bx + c = 0
x2 + bx = -c
x2 + bx + (b/2)2 = -c + (b/2)2
Aolving the LHS simultaneously,
(x + b)2 = -c + (b/2)2
Find the square root of both sides,
(x + b) = sqrt(-c + (b/2)2)
So for the equation, x2 - 8x + 12
x2 - 8x = -12
x2 - 8x + 16 = -12 + 16
(x - 4)2 = 4
So square root both sides,
(x - 4) = 2
Comparing this to the equation given,
(x - D) = E;
D = -4
E = 2
The first thing that you do when simplifying an expression with the variable’s values known is to distribute the values. EXAMPLE:
3(7x+9)+6(-16x-40); distribute:
21x+27-96x-240; combine like terms:
(21x+(-96x))+(27+(-240))——-> -75x-213; now plug in the values and solve: -75(6)-213=-663
Prob. of a system can be a failure is less than (1-0.9999) = 0.0001
<span>now probability that the system will be failure when it has x components is </span>
<span>(0.2)^x </span>
<span>so, (0.2)^x < 0.0001 </span>
<span>or, x*log0.2 < log0.0001 </span>
<span>or, x > log0.0001/log0.2 [the sign changes coz log 0.2 is negative] </span>
<span>or, x > 5.7227 </span>
<span>so, the no. of components (x) has to be 6</span>
Answer:
1. 5
2. 34
3. 48
4.70
Step-by-step explanation:
