Answer:
3. -3
4. 9
5. -5
Step-by-step explanation:
I can’t write radicals but fraction exponents change the number into a radical. Numerator being the power of the number and denominator being the type of root it is.
Answer:
b=72
Step-by-step explanation:
1/3(b+6) = 1/4b+8
First, open the parentheses, which means multiplying both variables in the parentheses by 1/3.
1/3b+2 = 1/4b+8
Then, subtract 2 from both sides.
1/3b = 1/4b+6
Subtract 1/4b from both sides, but first change the fractions so that they have the same denominator.
4/12b = 3/12b+6
1/12b = 6
Finally, divide 1/12 on both sides which gives us b = 72
Answer:
33 students
Step-by-step explanation:
Since 2/3 of her students have two or more pets, this means....
1/3 of her students have less than two pets
So....
We multiply 1/3 by 98
1/3*98
Approximately 32.67 which you can round up to 33 students
Answer:
yes
Step-by-step explanation:
You roll a die with the sample space s=1,2,3,4,5,6. you define A as (1,2,4) B as (2,3,4,5,6) C as (3,4) and D as (2,4,5). Determ
bekas [8.4K]
Answer:
A and B are exhaustive.
Step-by-step explanation:
Given
Solving (a): The mutually exclusive events
These are events that have no common or mutual elements
Events A to D are not mutually exclusive because each of the events have at least 1 common element with one another.
Solving (b): Exhaustive events.
Two events X and Y are said to be exhaustive if:
i.e. if the sample space equals the intersection of X and Y
For events A to D, we have:
and the sample space is:
By comparison;
Hence, A and B are exhaustive.
