Answer:
b
Step-by-step explanation:
plz vote my answer the brainiest as i am trying to lvl up, hope this helps!
Answer:
The answer is 15 days I hope this helps!
Answer:
x=0,1,±2
Step-by-step explanation:
x^3(x^2-5)=-4x
x^2(x^2-5)=-4
Take x^2=a, we have
a*(a-5)=-4, a^2-5a+4=0, (a-1)(a-4)=0, a=1,4
x^2=0, 1, 4. x=0,1,±2
we can conclude that the measure of a negative angle coterminal with 4л/3 is B = -2л/3
<h3>How to find the coterminal angle?</h3>
For a given angle A, we define the family of coterminal angles as:
B = A + n*2л
Where n is an integer number.
In this case, we want to find a negative coterminal angle to A = (4л/3), then we can replace it in the above formula to get:
B = 4л/3 + n*2л
Now we just need to find a value of n such that B is negative, if we select n = -1, then:
B = 4л/3 - 2л = 4л/3 - 6л/3 = -2л/3
Then we can conclude that the measure of a negative angle coterminal with 4л/3 is B = -2л/3.
If you want to learn more about coterminal angles:
brainly.com/question/3286526
#SPJ1
Using sampling concepts, it is found that convenient sampling was used by the researcher to find the volunteers to participate.
<h3>How are samples classified?</h3>
Samples may be classified as:
- Convenient: Drawn from a conveniently available pool.
- Random: All the options into a hat and drawn some of them.
- Systematic: Every kth element is taken.
- Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.
- Stratified: Also divides the population into groups. Then, a equal proportion of each group is surveyed.
In this problem, the first 100 male and first 100 female students sampled are the ones who volunteer to participate, and volunteering is associated with convenient sampling.
More can be learned about sampling concepts at brainly.com/question/25122507