Each piece = (4/5) yards
(4/5) yards * 3 feet = 2.4 feet each piece
which equals 2 feet 4.8 inches each
Answer: The determinant of the coefficient matrix is -15 and x = 3, y = 4, z = 1.
Step-by-step explanation: The given system of linear equations is :
We are given to find the determinant of the coefficient matrix and to find the values of x, y and z.
The determinant of the co-efficient matrix is given by
Now, from equations (ii) and (iii), we have
Substituting the value of y and z from equations (iv) and (v) in equation (i), we get
From equations (iv) and (v), we get
Thus, the determinant of the coefficient matrix is -15 and x = 3, y = 4, z = 1.
Answer:
406.4
Step-by-step explanation:
When rounding you only look at the number you're rounding and the one before it. In this case it would be the 4 and 3 after the decimal since we're rounding to the nearest cent. If the numbers before the one you're rounding are 0-4 then you leave the number the same. If the numbers are between 5-9 then you add one to the number. Since the number before 4 is between 0-4 you leave it as 4. But if it was between 5-9 then you'd change the 4 to 5.
Answer:
100.8 dollars
Step-by-step explanation:
126=1.25x
divide by 1.25
x=100.8
brainliest is appreciated
Answer: k=0 or k=−10
Step-by-step explanation: Let's solve your equation step-by-step.
3k(k+10)=0
Step 1: Simplify both sides of the equation.
3k2+30k=0
Step 2: Factor left side of equation.
3k(k+10)=0
Step 3: Set factors equal to 0.
3k=0 or k+10=0
k=0 or k=−10
