Answer:
Step-by-step explanation:
<u>Standard form:</u>
<u>Slope intercept form:</u>
<u>Point slope form:</u>
<u>Use the given points and find the slope:</u>
- m = (y₂ - y₁) / (x₂ - x₁)
- m = (1 - 4) / (- 1 - 1) = - 3/ - 2 = 3/2 = 1.5
<u>Point-slope form:</u>
<u>Conv</u><u>ert this to slope-intercept form:</u>
- y - 4 = 1.5(x - 1)
- y = 4 + 1.5(x - 1)
- y = 4 + 1.5x - 1.5
- y = 1.5x + 2.5
<u>Convert this into standard form:</u>
- y = 1.5x + 2.5
- 2y = 3x + 5
- 3x - 2y = - 5
Step-by-step explanation:
The answer is option b.
Explanation in the pic.
Need any other maths, feel free!!
Answer:
25 un²
Step-by-step explanation:
5 · 5 = 25 un²
Answer:
$16725.21
Step-by-step explanation:
The first thing is to calculate the cone volume, because they give us the value of copper in cubic inches.
We have that the volume of a cone is:
v = pi / 3 * (r ^ 2) * h
we know these values r = 15 and h = 67
v = (3.14 / 3) * (15 ^ 2) * (67)
v = 15778.5
the volume then is 15778.5 cubic inches, now we multiply this value by the price which is $ 1.06 per cubic inch:
c = 15778.5 * 1.06
c = 16725.21
Therefore the value of copper was $ 16725.21
