Answer:
Angle D is 45 degrees. The side length is 9 in.
Step-by-step explanation:
In a rotation, side lengths and angles do not change.
It moves 2.00666666667 every 1 1/5 hours
Answer:
The equation 
has roots –2 and 1/5.
Hence, the option 'a' is the correct answer.
Step-by-step explanation:
Checking the equation
putting x = -2 in the equation
L.H.S=R.H.S
putting x = 1/5 in the equation
L.H.S=R.H.S
As putting x = -2 and x = 1/5 satisfy the equation.
Therefore, the equation has roots –2 and 1/5.
Hence, the option 'a' is the correct answer.
Answer:
x = 5
Step-by-step explanation:
4x + 2y + z = 24
2x - 3y - z = 2
5x + y + 2z = 21
-----------------
Eliminate z
Add the 1st and 2nd eqn
4x + 2y + z = 24
2x - 3y - z = 2
----------------
6x - 1y = 26 eqn A
Multiply the 2nd eqn by 2, then add the 3rd.
4x - 6y -2z = 4
5x + y + 2z = 21
----------------
9x - 5y = 25 eqn B
---------------
Now you have 2 eqns in 2 unknowns, not 3.
Multiply eqn A by 5 and subtract eqn B.
30x - 5y = 130 eqn A times 5
9x - 5y = 25 eqn B
-------------
21x = 105
x = 5
Answer:
lmk if u want a more detailed explanation but since it's urgent here's the answer.
Step-by-step explanation:
