Answer:
Step-by-step explanation:
So we have the trinomial:
First, factor out a 2:
Now, factor within the parentheses.
To do so, we want to find two numbers. When multiplied, these two numbers must equal (a)(c) and when added, they must equal b
(a)(c) is 2(-5) or -10 and b is -3. So, we want two numbers that when multiplied together gives -10 and when added gives -3.
-5 and 2 works. Therefore:
Replace -3x with 2x and -5x:
Factor out a 2x for the first two terms. And factor out a negative 5 for the remaining two:
Grouping:
And we're done!
Answer:
8
Step-by-step explanation:
8. If the sum of five consecutive even integers is 110, what is the least of these integers? Explanation: 18 Since these numbers are "evenly spaced," their mean (average) is equal to their median (middle number).
F(x)=34x-84 ............................
Answer:
r = 100(
- 1 )
Step-by-step explanation:
Given
A = P(1 + 
) ← divide both sides by P
= 1 + ( subtract 1 from both sides )
- 1 = ( multiply both sides by 100 )
100 ( - 1) = r
Answer:
0.6443
Step-by-step explanation:
Given the that:
P(Z < 0.37) ; using a standard normal distribution :
The probability can be obtained using several methods :
Using a standard normal distribution table ;
P(Z < 0.37) = obtain the value at the intersection where 0.3 is on the vertical axis and 0.07 on the horizontal axis of the Z distribution table
Hence,
P(Z < 0.37) = 0.6443
