12 1/3 x 4.5 = 55 1/2 feet
-200 + 55 1/2 = -144 1/2
the diver is at -144 1/2 feet
Answer:
x = -5
y = 20
Step-by-step explanation:
3x + y = 5
3x - 3x + y = 5 - 3x
y = 5 - 3x
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4x + 2y = 20
4x + 2(5 - 3x) = 20
4x + 2(5) + 2(-3x) = 20
4x + 10 - 6x = 20
10 - 2x = 20
10 - 10 - 2x = 20 - 10
-2x = 10
-2x ÷ -2 = 10 ÷ -2
x = -5
--------------------------------------------------------
y = 5 - 3x
y = 5 - 3(-5)
y = 5 + 15
y = 20
Answer:
As we have seen, there can be 0, 1, or 2 solutions to a quadratic equation, depending on whether the expression inside the square root sign, (b2 - 4ac), is positive, negative, or zero. This expression has a special name: the discriminant.
Step-by-step explanation:
Can an acute triangle be an
A. Isosceles
B. Obtuse
A because think of acute as (a)cute little triangle. The angles are smaller. An Obtuse triangle would mean theres a larger angle
Can a right triangle be an
A. Isosceles
B. Obtuse
A because a right triangle will always have a 90 degree angle. Obtuse would require and angle to be greater than 90.
Answer:
Step-by-step explanation:
So we have the equation:
Distribute the left and the right:
Simplify:
Combine on the right:
Subtract 4x from both sides. The right cancels:
Subtract 6 from both sides. The left cancels:
Divide both sides by 2:
Thus, the value of x is -4.
