I cannot see the mass of the moon, can you comment the two masses so I can explain?
Answer:
Step-by-step explanation:
The width is 220 feet.
100 yards = 300 feet
300 x 2 = 600
1040-600 = 440
Since you have 2 equal sides representing the width 440/2 = 220
Check it by adding all sides to get perimeter:
220+220+300+300= 1040
Answer:
width = 2 cm
Step-by-step explanation:
are of rectangle is equal to length times width
x is the width, then length is 3x + 4
so x(3x + 4) = 20
3x^2 + 4x = 20
3x^2 + 4x - 20 = 0
The formula to solve a quadratic equation of the form ax^2 + bx + c = 0 is equal to x = [-b +/-√(b^2 - 4ac)]/2a
so a = 3
b = 4
c = -20
substitute in the formula
x = [-4 +/-√(4^2 - 4(3)(-20))]/2(3)
x = [-4 +/- √(16 + 240)]/6
x = [-4 +/- 16]/6
x1 = (-4 + 16)/6 = 2
x2 = (-4 - 16)/6 = -20/6
since the width can't be a negative number, x2 is not the right answer
so x = 2
<span>-10=xy+z
-10 - z = xy Divide both sides by y
(-10 -z) / y = x
x = -(z+10)/y
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