Firstly,
thanks for posting this.
81 = 9x9 or 9 squared so at this stage I'm guessing the last two.
x^ 8 = (x^ 4) x (x^ 2) (its called the multiplication rule of indices).
Okay I have approx 14 mins to answer.
No panic
√ 81.x^8 x <span>√ y^5
</span>√ (9x^2 x 9x^6) x <span>√ y^5
</span>= 9x x <span>√ 9x^6 x </span><span>√ y^5
</span>did I just gain time?
√ 9x^6 = <span>√ </span>3x ^3 x <span>√ 3x ^ 3
</span>or 2 . √ 3x^3. <span>√ y^5
</span>more time
okay, so that wasnt successful.
√ 9x^6 =<span>√ </span> (3x^2) x <span>√ </span>(3x^4)
Answer:
1) 500
2) 60
3) 24
4) 20
5) 6
6) 63
7) 35
8) 14
9) 15
10) 12
Step-by-step explanation:
First, find 10%
To find 10% of a number, just take off one zero, or move the decimal point back once.
So let's do #1
100% of 50
Find 10% of 50 = 5
Now we've found 10%, we still have 40% left (because it's 50%; 50-10=40)
Multiply 5 by 10
5 × 10 = 50
Let's do #7
60% of 70
Find 10% of 70 = 7
Multiply 7 by 5 (because its 60% and we've done 10%; 60-10=50)
7 × 5 = 35
:) hope i helped!
Answer:
[5, ∞)
Step-by-step explanation:
Range is the set of y-values that can be outputted by function f(x).
We see that our y-values span from 5 to infinity. Since 5 is closed dot, we include it in our range:
[5, ∞) or y ≥ 5