Answer:
Step-by-step explanation:
Given: △ABC, BC>AC, D∈ AC , CD=CB
To prove: m∠ABD is acute
Proof: In ΔABC, the angle opposite to side BC is ∠BAC and the angle opposite to side AC is ∠ABC.
Now, it is given that BC>AC, then ∠BAC>∠ABC.. (1)
In ΔBDC, using the exterior angle property,
∠ADB=∠DBC+∠BCD
∠ADB=∠DBC+∠BCA
⇒∠ADB>∠BAC (2)
From equation (1) and (2), we get
∠ADB>∠BAC
⇒∠ADB>∠ABC
⇒DB>AB
Hence, m∠ABD is acute
The answer is D:216:1 good luck with apex
Answer:
-1
Step-by-step explanation:
They already did the opposite reciprocal for you.
They have it in the form 
now.
To find b you just enter (x,y)=(8,1).
Let's do that.
Subtract 2 on both sides:
b=-1
L = Length
W = Width
4*W = "4 times the width"
4*W - 3 = "3 less than 4 times the width" = length
L = 4*W - 3
It looks like choice B is the answer assuming that strange symbol is suppose to be a minus sign.
Answer:
25
Step-by-step explanation:
12 x 100 = 1200
1200 / 48 = <u>25</u>
