Answer:
A) 120
Step-by-step explanation:
For this question you will need to use factorials
5! =5×4×3×2×1
which equals to 120
therefore the 5 people can be selected in 120 different ways
hope this helps
The answer is the last one with Amir as the 5 is the extra, and the 3 is multiplied by x or in this case days, and it is at least not equal.
Answer:
<em>213,645.6cm³ </em>
Step-by-step explanation:
Area of a cylinder is expressed as;
V = πr²h
r is the radius = 2cm
h is the height = 70cm
Get the volume of one rod;
V = πr²h
V = (3.14)(2)²(70)
V = (3.14)(4)(70)
V = 879.2cm³
one steel = 879.2cm³
243 rods = x
Cross multiply;
x = 879.2 * 243
<em>x = 213,645.6</em>
<em>The company will need 213,645.6cm³ volume of steel to make 243 rods</em>
The equation is y=2x+1 so plug in 43 for y
43=2x+1
42=2x
21=x!!
