Quadratic formula: (-b +/- sqrt(b^2 - 4ac)) / 2a
a = 10
b = -1
c = 9
1 +/- sqrt((-1)^2 - 4(10)(9)) / 2(10)
1 +/- sqrt(1 - 360) / 20
x = 1 +/- sqrt(359i) / 20
Hope this helps!
They are both right triangles so we can use the Pythagorean
theorem to solve.
6. B = sqrt(15^2-9^2)
B = 12 mm
7. B = sqrt(26^2-10^2)
B = 24 Cm
Answer:
21x + 12
Step-by-step explanation:
correct me of i am wrong
Answer:
- 1.33 per pound
- 6.65 for 5 pounds
Step-by-step explanation:
To find cost per pound, divide cost by pounds.
3.99/(3 lb) = 1.33/lb . . . . cost per pound
The cost of 5 pounds will be found by multiplying that by 5:
(1.33/lb)(5 lb) = 6.65 . . . cost of 5 pounds
Answer: $48.93
Step-by-step explanation: 789.18 x 0.062
