Answer:
X=-2/5,7
Step-by-step explanation:
5x² – 33x - 14 = 0
5x^2-(35-2)x-14=0
5x^2-35x+2x-14=0
5x(x-7)+2(x-7)=0
(5x+2)(x-7)=0
X=-2/5,7
so the value of X is -2/5,7
Answer:
56.42 minutes
Step-by-step explanation:
The initial sample= y0 = 800
After 13 minutes , amount = 320
Y= y0e-kt
320 = 800e-k(13)
320/800 = e-k13
0.4 = e-k13
In0.4 = -k13
-0.91629= -k13
0.07048= k
Y = 800e-0.07048t
Minutes when the bacterial present will be 15
15 = 800e-0.07048t
15/800= e-0.07048t
0.01875 = e-0.07048t
In 0.01875 = -0.07048t
-3.97656 = -0.07048t
-3.97656/-0.07048= t
56.42 = t
56.42 minutes
Answer:
Step-by-step explanation:
1. Expand by distributing sum groups.
2. Expand by distributing terms.
3.Expand by distributing terms.
4. Remove parentheses.
5. Collect like terms.
6. Simplify.
Thus. the answer is,
Answer:
less than
Step-by-step explanation:
the square root of 2 is 4 and 5/4 is 1.25
