By Pythagoras Theorem,
Length= (20^2 - 15^2)^0.5= (175)^0.5=5√7
Answer:I did this one and its 0.75
Step-by-step explanation:
Answer:

Step-by-step explanation:
Use the formula for a semicircle's perimeter.

Plug in 6 for d.

Let's use 3.14 for
, just to make it easier, but of course, if it states to round it to something else, just plug in that many values for
.

Since she bought 4 bags of 50 beads and 3 bags of 200 beads you only need to use two operations: multiply and add.
4 x 50 is 200
3 x 200 is 600
600 + 200 = 800
Mariah purchase 800 beads in total.
Answer:
72 / 123 * 100 = 58.53658537 per cent
Step-by-step explanation: