For -(4)^7
the - is not affected by the power of 7
For (-4)to the power of7 is the same as -4 to the power of 7
It is because 7 is an odd number,the - will not change .Therefore
(-4)^7= -(4)^7
But keep in mind that if the power is an even number , the - will change to + when the situation is (-4)
For example,(-4)^4=(4)^4
I am not good at English if there is any things that you feel confused you may ask
Answer:
The probability is 0
Step-by-step explanation:
From the first bag, the total number of counters is 5 + 3 = 8
The probability of taking a blue counter from the first bag is the number of blue counters divided by the total number of counters
Mathematically, we have this as;
3/8
For the second bag, all the counters are red with no blue counter
So the probability of taking a blue counter here is 0
Now, the probability that he takes a blue counter in A and a blue counter in B will
be;
3/8 * 0 = 0
Answer:
13 1/3 Hours
Step-by-step explanation:
5 feet = 60 inches
4 1/2 inches = 1 hour
60 inches = 1 ÷ 4 1/2 x 60
= 13 1/3 hours
If the snow keeps accumulating, it would take 13 1/3 hours for 5 feet of snow to accumulate.
Answer:
Step-by-step explanation:
3/12- 1/12=2/12
Answer:
11.45 lumens
Step-by-step explanation:
We are given that
Where x=Depth
I=Intensity of light
We have to find the intensity of the light at a depth of 20 feet.
Substitute the value of x
Hence, the intensity of the light (in lumens) at a depth of 20 feet=11.45 lumens
