D..............................
Answer:
DE = 4 units.
Step-by-step explanation:
By the chord intersection theorem:
BE * CE = DE * FE
But FE = DE + 5 so:
BE * CE = DE * (DE + 5)
6 * 6 = DE^2 + 5DE
DE^2 + 5DE - 36 = 0
(DE + 9)(DE - 4) = 0
So DE = -9 or 4
It can't be negative so DE = 4.
Answer:
Step-by-step explanation:
First you would take out 15 negative tiles.
Then you would separate each the tiles into 3 groups evenly.
In the end you should have 5 tiles in each of the 3 groups.
hope this helps:)
I hope this helps you
area formula=pi.r^2
1) Area=3,14. (3,5)^2
Area=38,465
Area nearest 38,5
2) Circumference=2pi.r
Circumference=2.3,14.3,5
Circumference=21,98
Circumference nearest 22
Answer:
16, 74
Step-by-step explanation:
3x +10 + 12x +50 = 90
15x + 60 = 90
15x = 90 -60
15x = 30
x = 30/15
x = 2
3x + 10 = 3*2 +10 = 6 +10 = 16
12x + 50 = 12*2 +50 = 24 + 50 = 74
