Answer:
237
Step-by-step explanation:
Answer:
45°
Step-by-step explanation:
The hour hand makes a trip of 360° around the face of the clock in 12 hours, so in 4.5 hours will make an angle of ...
... (4.5/12)·360° = 135°
clockwise from straight up.
The minute hand makes that 360° turn in 1 hour, so in 30 minutes, it will be 180° clockwise from straight up.
The difference between the angles of the hands is ...
... 180° -135° = 45°
Recall that (a+b)²=a²+2ab+b²
100x²+120x+z
in this case, because100x²=(10x)², a=10x, z=b²
120=2*10*b
b=6
z=b²=36
the square is (10x+6)²
The independent variable would be x, as it depends on nothing to determine its value. The dependent variable is f(x), as it depends on x to determine its value. This means we plug -4 into x and solve the equation to find f(x).
f(x) = -5(-4) + -4/-2
f(x) = 20 + 2
f(x) = 22
So the answer is C.
Answer:
/ Solve equation [2] for the variable y
[2] 7y = 12x + 17
[2] y = 12x/7 + 17/7
// Plug this in for variable y in equation [1]
[1] 9x - 2•(12x/7+17/7) = -3
[1] 39x/7 = 13/7
[1] 39x = 13
// Solve equation [1] for the variable x
[1] 39x = 13
[1] x = 1/3
// By now we know this much :
x = 1/3
y = 12x/7+17/7
// Use the x value to solve for y
y = (12/7)(1/3)+17/7 = 3
Solution :
{x,y} = {1/3,3}
Step-by-step explanation: