Answer:6x+126in^2
Step-by-step explanation:
a =15 long
b=x. Wide
A=ax
A=15x represenrs picture area
Add on each side of picture 3 in
a1=15+6=21 in
b1=x+6
Calculate area
A1=a1b1
A1=21(x+6)
Area of frame = A1-A
Area of frame=21(x+6)-15x=21x-15x+126=6x+126in^2
Answer:
8x - 1
Step-by-step explanation:
You cannot actually solve this equation because you have no value that it is equal to, but you can simplify it down by combining like terms:
- 3x + 5x - 1
- 8x - 1
Hope this helps!!
Answer:
19,8
105,7
144,84
304
Step-by-step explanation:
At first, 9) is not correct.
Formula for surface of parallelogram is
A=a*H
DONt divide with 2.
So the 9) is 19.8
10) A=15.1*7=105.7
11) A=14.2*10.2=144.84
12) A=20*15.2=304
Answer:
1 / 3^5
1/ 243
Step-by-step explanation:
3^4 ÷ 3^9
We know that a^b ÷ a^c = a^ ( b-c)
3 ^ ( 4-9)
3^ -5
We can rewrite this as a^-b = 1/ a^b
1 / 3^5
We know that 3^5 = 243
1/ 243
180 - x = r is true.
Thats the only one which is true.