We will prove first that PRQ≡PSQ
We need 3 attributes from the each triangle:
QS=QR
PR=PS
PQ=PQ
from PRQ≡PSQ => angles RPQ and SPQ are equal
Let if be O=RS∩PQ
We will prove that triangles RPO≡SPO
We need 3 attributes from the each triangle:
RP=PS
PO=PO
angles RPQ and SPQ are equal
results that angles RPO and SPO are equal(Let's note them with x)
We also know that (as angles) POS≡ROS and POR≡SOQ as opposite angles
We now have than 4x=360 wich means x=90. And we proved the desired result.
You just need to put this explanation into the table. (most if the 3 attributes for each triangle)
Answer:
B. 3 g/mL
Step-by-step explanation:
The first thing is to know the density formula:
Density is given as follows:
d = m / V
let m: mass and V: volume.
We have that the mass of the metal is 1800 grams and the volume of 600 milliliters.
Therefore, replacing:
d = 1800/600 = 3 g / mL
That is, the density is 3 grams per milliliter.
Answer:
A. True
B. False
C.True
D. True
E. Sometimes true
F. False
G. True
H. Sometimes true.
Explanation:
If I got it wrong, I will try better next time.
So, look:
36*4 = 144
There are 145 quarters in all.
And in nickels, there are:
144 * 5 = 720 + 5 = 725
There are 725 nickels in all.
Dimes: 144 * 10 = 1440 + 10 = 1450 (or you could do 145 * 10 and still get 1450. Like I did in the nickels and everything. :) )
= 1450 dimes
I hope this helps!
