Putting the other player's king in check is always a good move. true
<h3>What is chess?</h3>
- The policies of chess allow a king to take an opponent's piece whilst in check, so long as that piece isn't always being defended.
- At the equal time, a king in the test is usually forced to move.
- The standard regulations of chess, a participant may not make any pass that places or leaves their king in the test.
- A player may additionally pass the king, seize the threatening piece, or block the check with some other piece.
- A king cannot look at the opposing king, considering this will vicinity the first king in check as well.
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Answer:
The volume of the solution with 20% acid is 27 gallons and the one with 10% acid is 18 gallons
Step-by-step explanation:
Myra needs to mix "x" gallons of the solution with 20% and "y" gallons of the solution with 10%. The volume of the final solution must be 45 gallons, therefore:
x + y = 45
The concentration of acid of the final solution is:
0.2*x + 0.1*y = 45*0.16
0.2*x + 0.1*y = 7.2
Therefore we have a system of equation:
x + y = 45
0.2*x + 0.1*y = 7.2
We need to multiply the first equation by -0.1:
-0.1*x -0.1*y = -4.5
0.2*x + 0.1*y = 7.2
We now sum both equation:
0.1*x = 2.7
x = 2.7/0.1 = 27 gallons
y = 45 - 27 = 18 gallons
Answer:
Step-by-step explanation:
Reference angle = 30°
Opposite side = x
Adjacent side = 2
Apply the tan trigonometric function, thus:
(tan 30 = 1/√3)
Rationalize
Yes it is, any decimal after the number one will be bigger than one
Answer:
x=2 , x=(-1)
Step-by-step explanation:
y=x^2+3----------1
y=x+5-------------2
1=2
x^2+3 = x+5
x^2-x-2=0
(x-2)(x+1)=0
x=2 , x=(-1)
