BD is congruent to BD by the reflexive property
AD is congruent to DC because they are both created by the midpoint D
so with all the together you can say the triangle are similar by SSS
Hi There!
Alright- Lets do this!
#1: PEMDAS
P
E
M/D
A/S
(8 + 7) - (8 x 9) + 800 + (50 + 90) + (8 x 9) - (11 - 25)
P - Parentheses
15 - 72 + 800 + 140 + 72 - (-14)
E - Exponents
There are none
M- multiply
there are none
D-Divide
There are none
Add
<span>15 - 72 + 800 + 140 + 72 - (-14)
</span>15 - (72+800+140+72 + 14)
*Note: subtracting a negative number is the same as adding it!*
15-1098
S - subtract
Answer: -1083
Hope this helped!
15. A=7, 16. V=9, 17. D=26
This is the general formula for circle.
x² + y²=r²<span> ,where r is the radius
</span>
Consider the building as the centre of the circle, then the radius is equal to the furthest distance between <span>you and the tower that allow you to have coverage.
Hence,
r</span>² = 2025
r=√2025 = 45 miles
To work this out, we want to find the Lowest Common Multiple of 6 and 12
This is the smallest number that fits in both
6 x 2 = 12
12 x 1 = 12
11/12 is already over 12 so we don't need to do anything
5/6 is not - to convert it, we multiply the top and the bottom by 2
5 x 2 = 10
10/12 or 11/12
10 is smaller than 11
Therefore 5/6 is smaller than 11/12
5/6 < 11/12
11/12 is greater