Answer:
D) 3cm/s
Step-by-step explanation:
Speed (or velocity) is calculated with d/t (distance/time). From the multiple-choice options, we know the unit is cm/s, which makes it super convenient.
Now, using the equation and seeing that 27cm is the distance and 9s is the time, 27/9 =3.
Therefore, the answer is D, 3cm/s.
Hope that helps!
Answer:
As , it is possible to reject null hypotesis. It means that the local mean height is less tha 0.7 m with a 5% level of significance.
Step-by-step explanation:
1. Relevant data:
2. Hypotesis testing
3. Find the rejection area
From the one tail standard normal chart, whe have Z-value for is 1.56
Then rejection area is left 1.56 in normal curve.
4. Find the test statistic:
5. Hypotesis Testing
As , it is possible to reject null hypotesis. It means that the local mean height is less tha 0.7 m with a 5% level of significance.
The answer choice which is true about the sum of the two polynomials as described in the task content is Choice B; The sum is a binomial with a degree of 3.
<h3>Which answer choice represents the statement which is true about the sum of the two polynomials?</h3>
It follows from the task content that the polynomials in discuss whose sum is to be determined are; 6s²t - 2st² and 4s²t - 3st².
On this note, it follows upon addition by means of collecting like terms that;
6s²t + 4s²t - 2st² -3st²
= 10s²t - 5st².
It therefore follows from the resulting polynomial that; it is a binomial as it has 2 terms with a degree of 3.
Remarks:
a.) The sum is a binomial with a degree of 2.
b.) The sum is a binomial with a degree of 3.
c.) The sum is a trinomial with a degree of 2.
d.) The sum is a trinomial with a degree of 3.
Read more on polynomials;
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Answer:
its the third one down also you do compasscharters to lol
Step-by-step explanation: