Answer:
Option D
Step-by-step explanation:
The given equation is 9x + 12y = 48.
When we simplify this equation by dividing through by 3, we obtain:
The slope-intercept form is
The slope is
and the y-intercept is 3.
An equation that forms a pair of linear equations with 9x + 12y = 48 such that the system has no solution must have a slope of
and a y-intercept not equal to 3.
That should obviously be the last option.
D) 6x +8y=32
The slope-intercept form is:
Let the side of the square base be x, and the height of the box be h.
<span>The material of the base is x^2, and the material of the four sides is 4xh. </span>
<span>4000 = hx^2 </span>
<span>h = 4000/x^2 </span>
<span>The total material is </span>
<span>M = x^2 + 4x(4000/x^2) = x^2 + 16000/x </span>
<span>Take the first derivative of M and set equal to 0. </span>
<span>M' = 2x - 16000/x^2 = 0 </span>
<span>Multiply by x^2: </span>
<span>2x^3 = 16000 </span>
<span>x^3 = 8000 </span>
<span>x = 20; h = 10; M = 1200</span>
477900 there you go use a calculator next time ;)
Answer:
Step-by-step explanation:
The answer is 570 because if you multiply 38 times 15 = 570 so it is 570. Thank you for answering to hope this helps you if you need more help contact me!
Step-by-step explanation:
the answer is
1) £30
2) £ 270
