Answer:
water reflects 5.6 times as many uv rays as sand
------------------------
Step-by-step explanation:
sand: 0.15
water: 21/25 --> 0.84
0.84/0.15= 5.6
therefore, water reflects 5.6 times as many uv rays as sand
X= -9
Steps
Move 7 to the right of the equal sign and change to a negative
1x= -2-7
1x=-9
Answer:
1. 16
2. 12
3. 0
4. 17
5. 16
6. 4
7. 32
8. 36
9. 1/18
Step-by-step explanation:
Hello from MrBillDoesMath!
Answer:
Choice C, sqrt(3-x)
Discussion:
Have no fear, MBill is here!
The quotient is
sqrt (9-x^2) / sqrt( 3+x) = => as sqrt(a)/sqrt(b) = sqrt(a/b), b <> 0
sqrt ( (9-x^2)/( 3+x) ) = => as 9 - x^2 = (3-x) * (3+x)
sqrt ( (3-x)(3+x) /(3+x) ) = => cancel (3+x) from num. and denom.
sqrt( 3-x)
This is Choice C
Note the domain restriction -3 < x < = 3 guarantees that division by zero can't happen.
Thank you,
MrB