Answer:
Step-by-step explanation:
Let x be the angle
We are given that cosine x=0.6725
We have to find the value of x in degree
We have to nearest whole degree
Therefore, the angle
Answer:
Step-by-step explanation:
An average family of four (also living in Phoenix, AZ) uses 325,851÷365 gallons of water per day
then
An average family of four (also living in Phoenix, AZ) uses 892.74247 gallons of water per day
therefore
the number of families of four can one golf course provide water for :
80 000 000÷892.74247=89611.509
the number of families of four can one golf course provide water for :
[rounded to the nearest ten] 89610.
:)
Answer:
Step-by-step explanation:
Givens
This situation can be described by the following equation
Where indicates the number of families that could use the 80 million galons of water.
Let's solve for
Therefore, around 250 families can be provided with one golf course.
Answer: In order to begin figuring that out, we need to know how both of their plans work.
Answer:
a matrix with 1's in the main diagonal and zeros everywhere. The identity matrix of order 2×2 is: [1 0 0 1].
The 2x2 identity matrix is a square matrix with 1s on the main diagonal and 0s elsewhere. It serves as the multiplicative identity in matrix multiplication, leaving the original matrix unchanged when multiplied.
In mathematics, the 2x2 identity matrix, denoted by the symbol I or Id, is a square matrix containing elements that make it act as the multiplicative identity in matrix multiplication. Specifically, a 2x2 identity matrix is written as:
I = [1, 0; 0, 1]
Here, the numbers 1 are positioned on the main diagonal from the top-left to bottom-right (also termed as principal diagonal). The other elements, outside the main diagonal, are 0. This particular configuration results in special properties such as, when any matrix is multiplied by the identity matrix, the original matrix is unchanged. So, if we have a 2x2 matrix A, then multiplying by the identity gives AI = IA = A.
Learn more about 2x2 Identity Matrix here:
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a. y=50+3x
y=100-2x
b. x+3y=9
-3x+2y=8
Thanks for helping
(will give brainliest <3)