Answer:
see attached
Step-by-step explanation:
Perhaps the easiest way to do this is to draw the needed shape in the box, then locate it among the answer choices. Use the identifying features such as dot location and direction of arrow (or tail).
__
Left-to-right, this is what you're trying to match:
- tail on the right, dot in the tail
- tail on the left, dot in the fin
- tail on the right, dot in the nose
- tail on the left, dot in the center
Answer:
r=
r= -
Step-by-step explanation:
8=
Square root both sides of the equation.
r=
r= -
Answer:
294 cm^2.
Step-by-step explanation:
where A = area, h = height and a and b are the lngths of the 2 bases.
So
= 7*42
= 294 cm^2.
Surface area of a cylinder: 2B + Ch
Word form: 2(area of base) + (circumference of base)(height)
Find the numbers you need to plug in to the formula.
Area of base:
2² = <span>12.57 m</span>²<span>
</span>
Circumference of base: 2
2 = 12.57 m
Height: 12 m
Plug these numbers in to the formula.
2(12.57) + (12.57)(12) = 175.98
The SA of the cylinder is 175.98 m².
<span>You would have to wait 318 years for 1/5 (20%) of the Radium to disappear. 1590 is the point where half of the Radium would decay, so if you take 20% of that, it would equate out to 318 years. Radium has a long half life!</span>