What are the solutions of x2 + 10x + 16 = 0?
2 answers:
Answer:
x= -2 and x= -8
Step-by-step explanation:
Given:
Solution:
1) equation in standard form is
therefore, is in standard form.
2) factors of the polynomial of the given equation is :
3) zero product property sate that if a.b=0 then either a=0 or b=0
applying this property,
⇒either (x+2)=0 or (x+8)=0
⇒either x= -2 or x= -8
4) solving the equation we get, x= -2 and x= -8
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Answer: 0.025
Step-by-step explanation:
Given : A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between the interval [48.0 minutes, 58.0 minutes].
The probability density function :-
Now, the probability that a given class period runs between 50.25 and 50.5 minutes is given by :-
Hence, the probability that a given class period runs between 50.25 and 50.5 minutes =0.025
Similarly , the probability of selecting a class that runs between 50.25 and 50.5 minutes = 0.025
<h2>Hello!</h2>
The answer is: 50% (0.5)
<h2>Why?</h2>Exponential growth equations are use to predict the growth (in function of time) using proportional information.
We can calculate the exponential growth using the following formula:
Where,
S, is the starting value
r, is the growth rate
t, is the time
So, we are given the function:
Where,
f(t), is the function,
3, is the starting value (lb)
0.5 (50%) is the growth rate
nt, is the time elapsed.
Hence,
From the given function, we know that the growth rate is equal to 0.5, and it's equal to 50%.
We can turn the growth rate given in real numbers to percent value by multiplying by 100
So, the growth rate is 50%.
Have a nice day!