6 is 59 degrees
7 is 30 degrees
Answer:gd
Step-by-step explanation:
Vygfy
The for the matrix is
How to find inverse of a matrix ?
Only square matrices with an equal number of rows and columns, such as 2 *2, 3* 3, etc., allow us to find the inverse of the matrix. The adjoint of the provided matrix is divided by the determinant of the given matrix to produce the inverse matrix, to put it simply.
|A|=-5(4-3)+4(4-3)-5(4-4)
|A|=-5+4
|A|=-1
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Solution: Let x be the height of a student in Marta's class.
The mean height of 18 students in Marta's class is 60 inches
We know that:
Therefore, the total measure of all 18 student's heights is 1080 inches
V*t=S
V=3x10^8 m/s
S=7.5x10^6 m
t=S/V = 7.5x10^6 / 3x10^8 = 7500 000 / 300 000 000 = 0.025 s