Answer:
D.Z
u see how they have line in between as well, shows that they are going by 5 so 2.0 and then 2.5
and if it was asking for -2.5 which is negative two point five, you would choose A.U
Answer: To solve this you need to use the vertex form of the equation of a parabola which is y=a(x−h)2+k , where (h,k) are the coordinates of the vertex.
Step-by-step explanation:
Randy's cat if 5 kilograms, so therefore the tiger's mass is 27 times larger than the mass of Randy's cat.
Answer:
Hence, kaitlin will need 2 albums if she fills each page with her coins.
Step-by-step explanation:
The given information is:
Kaitlin has 46 coins in her coin collection.
She has albums that can hold 5 coins per page.
The albums have 6 pages each.
Now we are asked to find how many albums will be needed to fill each page with her coins.
As we know that 1 album has 6 pages.
1 page can hold=5 coins.
So, 1 album can old=6×5=30 coins.
Now 46-30=16 coins are left
So we will need one ore album so that these 16 coins could be placed in it.
Hence, kaitlin will need 2 albums if she fills each page with her coins.
The answer:
the full question is as follow:
if A+B-C=3pi, then find sinA+sinB-sinC
first, the main formula of sine and cosine are:
sinC = 2sin(C/2)cos(C/2)
sinA +sinB = 2sin[(A+B)/2]cos[(A-B)/2]
therefore:
sinA+sinB-sinC = 2sin[(A+B)/2]cos[(A-B)/2] - 2sin(C/2)cos(C/2)
sin[(A+B)/2] = cos(C/2)
2sin(C/2)cos(C/2) = cos[(A+B)/2
and
A+B-C=3 pi implies A+B =3 pi + C, so
cos[(A+B)/2] = cos [3 pi/2 + C/2]
and with the equivalence cos (3Pi/2 + X) = sinX
sinA+sinB-sinC = cos(C/2)+ sin(C/2)
