Answer:f(-2)=2
Step-by-step explanation:
-x^2-5x-4
= -(-2)^2-5(-2)-4
= -4+10-4
= 2
W = white keys
b = black keys
w + b = 88
We know the number of black keys, it is 36
w + 36 = 88
w + 36 - 36 = 88 - 36
w = 52
So, the number of white keys is 52.
Now, we can write the ratio.
It would be :
b : w
36 : 52
Let's simplify . . .
They are both divisible by 4:
36/4 : 52/4
Simplifies to . . .
9 : 13
So, the ratio is 9 black keys: 13 white keys.
Final Answer: 9 black keys : 13 white keys
*I looked to see if this was actually true on a real piano, and it was!
<span>Since he was 30 flower pots and puts 10 in each, you would need to multiply 30 by 10 which leads to 300 seeds.</span>
Answer:
P (2) = 0.1
Step-by-step explanation:
The table has X and P(X), you have to search the X and see its P(X) and thats the probability
First find a common denominator, which is 8 & change all fractions to a denominator of 8
3/4 *(2/2) = 6/8
-5/8 + 6/8
1/8