8)
The 4 is a squared number (2<span>×2).
</span>Answer:
12)
The 441 is a squared number (21<span>×21)
</span>Answer: 21
1) in order for two lines to be perpendicular, their gradients must multiply together to get -1
-1/3*b=-1
b=3
5=3(3)+b
5=9+b
b=-4
equation of the line is y=3x-4
2) parallel lines have the same gradient
4=2(-3)+b
4=-6+b
b=10
equation of the line is y=2x-10
Answer:
3846.5 in
Step-by-step explanation:
- A = π
× 
- 35 × 35 = 1225 in
- 1225 × 3.14 = 3846.5 in
- So, the area is 3846.5 in
I hope this helps!
Answer:
2²×3³
Step-by-step explanation:
162 can we shown as:
81*2=162 as 2 is prime we leave it out and focus of 81:
18*3=81 we leave out 3:
3*6=18 we leave out 3 again:
3*2=6
so our answer is 2*2*3*3*3 which in index form is 2²*3³ as there are two 2s and three 3s.
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