Check your work here:
1)7/8.
7/8=0.875 and 3/4=0.75
2)3/20.
3/20=0.15 and 12.5%=0.125
3)48.4
increase by 10% means you multiply 44 by 100%+10% or 110% to get 48.4
4)612
decrease by 10% means you multiply 680 by 100%-10% or 90% to get 612
5)36,36,60
132/(3+3+5)*3,132/(3+3+5)*3,132/(3+3+5)*5
6)9.6,22.4
32/10*3, 32/10*7
7)20
14/0.7
8)31.5
18/4*7
9)17/12
2/3=8/12, 3/4=9/12 8/12+9/12=17/12
10)15/4
5*3/4
11)8
2^2+2*2=4+4=8
12)0
(-2)^2+(-2)*2=4-4=0
13)3
3(x-3)=0,(x-3)=0,x=3
14)2/5 or 0.4
5x+1=3,5x=2,x=2/5
15)5n+2
The sequence difference is 5 and the first term is 7
16)20
6(3)+2=18+2=20
17)-5
4(-2)+3=-8+3=-5
18)1
the coefficient of x is 1
19)4pi or 12.56
area of a circle is r^2*pi=2^2*pi=4pi
20)14pi or 43.96
circumference of a circle=2r*pi=2*4*pi=14pi
Answer:
1) 
2) 
3) 
4) 
Step-by-step explanation:
1) Since the whole angle is 
, and to find the other angle, which is labeled as 
, you subtract 
from :
2) Since you already have two angle measures 
and 
, you add them up and subtract it from to get the angle measure for :
3) Same thing from number 1. Subtract 
from :
4) Same thing from number 2. Add 
and and subtract it from :
Answer:
100°
Step-by-step explanation:
The bottom left and top left angle in a parallelogram are adjacent angles.
From the properties of parallelogram, we know adjacent angles are supplementary, this means they "add up to 180°"
<em>Thus, if one angle is 80, the other angles would be 100 (to make it total 180).</em>
<em />
So, top left corner angle measures 100°
Answer:
The second student is correct. The volume of a prism is bh, but the volume of a pyramid is (1/3)bh. The volume of a pyramid will be one-third the volume of a prism if they have the same base area and height.
Step-by-step explanation:
I took the quiz :)
