(c)*(d)=8*30+8*4=8*34,=>
c=8
d=34
a+b>a-b, =>a+b=d, a-b=c; =>
{a+b=34
{a-b=8, =>a=b+8 ;
(b+8)+b=34
2b=34-8
b=13
a=13+8=21
Answer: a=21; b=13; c=8; d=34.
Answer:
1.4005
c−
0.89
Step-by-step explanation:
all you have to do is combine the terms with the same variable or non variable.
The probability of getting a positive number is 1/2 = 0.50 = 50% since half of the values are larger than 0. The standard normal distribution is symmetric about the center mu = 0.
Answer:
Step-by-step explanation:
It seem the constant of variation is k = 1/3.
<u>The equation is:</u>
<u>Let's verify the values in the table:</u>
- 1 = 3*1/3 ⇒ 1 = 1, correct
- 2 = 6*1/3 ⇒ 2 = 2, correct
- 6 = 9*1/3 ⇒ 6 = 3, incorrect
- 4 = 12*1/3 ⇒ 4 = 4, correct