First, find c:
C is a supplementary angle, therefore, calculate x+113=180
180-113=x
X=67
Now, knowing that all of the angles of a triangle add up to 180, calculate for B.
72+b+67=180
139+b=180
B=180-139
B=41
I think it is the tens because the first is ten thousand, second is thousand, third is hundreds and last is units ones
Answer:
The second and third answers are correct.
Step-by-step explanation:
This is a upwards opening parabola. It has no maximum. It has a minimum at ( 1,-4).
The first answers is incorrect.
A function is increasing when it goes up. It is increasing from 1 to the right or when x>1 . It is also increasing from - infinity to 1 so x <1
The second answer is correct.
The y intercept is where it crosses the y axis. This is at the point x = -2
The third answer is correct.
All points on a graph are solutions to the function. If the function is set equal to zero, then this has two real zeros.
The fourth answer is false.
A constant rate of change means that it is linear. This is a parabola. A parabola increases as x^2 not x, so it is not a constant rate of change
The fifth answer is not correct.
The range is the values that y can take.This says y must be less than or equal to -4. That is not true. y≥ -4.
The sixth answer is not correct.
Answer: C. 461
Step-by-step explanation:
We know that the formula to find the sample size is given by :-
, where = Population standard deviation from prior study.
E = margin of error.
z* = Critical value.
As per given , we have
E= 15
Significance level :
Critical value (Two tailed)=
Now , Required sample size =
[Round to next integer]
Hence, the required sample size to be taken is 461.
Correct answer = C. 461
Answer:
280
Step-by-step explanation:
1514-1234 = 280