(6.72×10^9)÷(3.2×10^2)=2.1×10^7
6.72÷3.2=2.1 and
10^9÷10^2=10^7 {here power is subtracted 9-2=7}
2.1×10^7
Answer: c
Step-by-step explanation:
substitute
Answer:
false
Step-by-step explanation:
1-2cos²r=1-2(1-sin²r)=1-2+2sin²r=2sin²r-1
Answer:
I think the answer is 5 down and over to the left 3.
Step-by-step explanation:
I just counted from the point on the (4,3) and counted down until it was line up with the other point. Next, I counted from there to the other point.
Answer:
1 notebook=$30.7
1 thumb drive =$12.2
Explanation:
Let x represent the number of notebooks and y represent the number of thumb drives.
4x+5y = $116 ................1
2x+3y = $68..................2
4x+2x=$116+$68
6x=184
Therefore, the cost of each notebook=30.66
=$30.7
2x+3y=$68
2(30.7)+3y =$68
$31.4+3y=$68
3y=$68 - $31.4
3y=36.6
Therefore, the cost of each thumb drive = $12.2
Proof
2(30.7)+3(12.2)=$68
31.4+36.6=$68.0