Answer:
correct ordered pair ( 4 , 1 ).
Step-by-step explanation:
Given : 3y=x-1 and x-2y=2.
To find : Use the elimination method to solve the system of equations.
Solution : We have given that
3y = x - 1 ------(1)
x - 2y = 2--------(2)
On subtracting x from both sides from equation 2.
-2y = -x + 2 --------(2)
Now adding equation 1 and 2
3y = x - 1 ------(1)
-2y = -x + 2 --------(2)
____________
y = 0 + 1
y = 1.
Now plug the value y = 1 in equation 1
3 (1) = x - 1.
3 = x - 1.
On adding both sides by 1
3 +1 = x
x = 4.
Pairs ( 4 , 1 )
Therefore, correct ordered pair ( 4 , 1 ).
A. x = 15
B. x = 6
C. x = 24
D. x = 12
Answer:
X=2×3=6
Step-by-step explanation:
Y=5, x=2×3=6
I hopethis helps
BRAINLIEST PLEASE
Answer:
B: 24ft^2
Step-by-step explanation:
Area of triangle = (base x height)/2
Step 1: form an equation
a = (12ft x 4ft)/2
Step 2: solve equation
a = 48ft^2 / 2
a = 24ft^2
*the base is the measurement for the bottom of a triangle while height is the measurement of the length from the bottom to the top of a triangle*
Answer:
d
Step-by-step explanation:
(B) Approximately normal with mean $206,274 and standard deviation $37,881
(C) Approximately normal with mean $206,274 and standard deviation $520
(D) Strongly right-skewed with mean $206,274 and standard deviation $3,788
(E) Strongly right-skewed with mean $206,274 and standard deviation $37,881
Approximately normal with mean is $206,274 and standard deviation is $3,788 and this can be determined by applying the central limit theorem.
Given :
According to the central limit theorem the approximately normal mean is $206274.
Now, to determine the approximately normal standard deviation, use the below formula:
---- (1)
where 's' is the approximately normal standard deviation, 'n' is the sample size, and is the standard deviation.
Now, put the known values in the equation (1).
s = 3788.1
So, the correct option is A).
For more information, refer to the link given below:
Answer:
(A) Approximately normal with mean $206,274 and standard deviation $3,788
Step-by-step explanation:
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean and standard deviation
, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean
and standard deviation
.
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
Population:
Right skewed
Mean $206,274
Standard deviation $37,881.
Sample:
By the Central Limit Theorem, approximately normal.
Mean $206,274
Standard deviation
So the correct answer is:
(A) Approximately normal with mean $206,274 and standard deviation $3,788
The operations referred to are likely
• raising to a power (the numerator of the exponent)
• taking a root (the denominator of the exponent)
• finding a reciprocal (because the exponent is negative)
They can be performed in any convenient order. It often works well to deal with small positive integers, so if one or more of these operations lets you proceed with a small positive integer for the remaining operations, that would be the one you'd perform first.
_____
A computer performing operations with a negative rational exponent may do so using logarithms. That is, the log of the base will be multiplied by the exponent, then the antilog found. The exponent itself will likely be treated as a floating point number, unless coding specifically indicates otherwise.
B. Rectangle
C. Trapezium
D. Parallelogram
Answer:
parallelogram
Step-by-step explanation:
parallelograms are parallel.