Answer:
This is a circle with centre (6,-7) and radius 4.
Step-by-step explanation:
The equation of a circle has the following format:
In which r is the radius(half the diameter) and the centre is the point
In this question:
So
The radius is the positive value.
So this is a circle with centre (6,-7) and radius 4.
Answer:
A = 70 units²
Step-by-step explanation:
Since all 4 sides are congruent then figure is a rhombus
The area (A) of a rhombus is calculated as
A = × d₁ × d₂ ( d₁ and d₂ are the diagonals )
Here d₁ = 7 + 7 = 14 and d₂ = 5 + 5 = 10 , then
A = × 14 × 10 = 7 × 10 = 70 units²
Answer:
-1/19 = x
Step-by-step explanation:
(x - 1)/x = 20
Multiply each side by x
(x - 1)/x *x = 20*x
x-1 = 20x
Subtract x from each side
x-1-x = 20x-x
-1 = 19x
Divide each side by 19
-1/19 = x
Answer:
$80
Step-by-step explanation:
40 increase 100% =
40 × (1 + 100%) = 40 × (1 + 1) = 80
Answer:
5 1/2
Step-by-step explanation:
10.50 per hour
1 3/4 +2 1/3 = 4 1/12
4 1/12 + 1 5/12 = 5 1/2