Step-by-step explanation:
1 pound is 16 ounces
2 pounds are 16 x2 which is 32 ounces
she needs 20 ounces
32 -20 is 12
she will have 12 ounces left
The best method that will work for any quadratic equation is to use the quadratic formula: x = (-b±√(b² - 4ac))/2a, this will work for any quadratic of the form ax² + bx + c = 0.
As for the last equation in the attachment, that is a cubic equation, these are much trickier to solve and as such the formula is much longer and very complicated. Therefore it is easier to see if it can be broken down into a linear term and a quadratic. This can be done by substituting integer values of x into the equation to see if it holds true. If both sides of the equation are equal for a given value of x then the equation ax³ + bx² + cx + d can be rewritten as (Ax + B)(px² + qx + r). This can then be put into the quadratic formula mentioned above.
Answer:
the perimeter is simply 2L + 2W
So lengthy 8.3
2(8.3) + 2(w) =22.4
16.6=2(w) =22.4
2(w) = 5.8
w = 5.8 divide by 2
The width is 2.9
The equation of the circle is may be expressed as,
(x - h)² + (y - k)² = r²
where h and k are the abscissa and ordinates of its center, respectively, and r is radius. Substituting the given values to the equation above,
(x - 5)² + (y - 3)² = 4²
Simplifying further the equation gives,
x² + y² - 10x - 6y + 18
Answer:
the answer is 24
Step-by-step explanation:
times 4 by 7 to get 24 because we only need the botom of the prism so if their 1 inch by 1 inch then how many times can it fit in seven only seven times so times that by how long it is witch is four then you would get 24
