Answer:
{4, - 1}
Step-by-step explanation:
Given
2y² - 6y - 8 = 0 ← in standard form
with a = 2, b = - 6, c = - 8
Using the quadratic formula to solve for y
y = ( - (- 6) ± ) / (2 × 2)
= ( 6 ± ) / 4
= ( 6 ± ) / 4
= ( 6 ± 10 ) / 4
x = = = 4
OR
x = = = - 1
Solution is { 4, - 1 }
Answer:
= 9.2 cm
Step-by-step explanation:
D = C ÷ π
= 29cm ÷ 3.14
= 9.2356
= 9.2 cm
Answer:
The outside edge is 44 ft longer than the inside edge.
Step-by-step explanation:
The outside edge has a 1000 ft radius. Because the curve makes a 180° turn, the length of the curve is half of the perimeter of a circle.
Perimeter of a circle:
Outside length of the curve is given by:
R=1000 ft
Then,
Inside length of the curve is given by:
r=R-14 ft
The difference between the two lengths is:
The outside edge is 44 ft longer than the inside edge.
40.9267 is the square root
100= 10^2.
The missing exponent is 2~