Answer:

Step-by-step explanation:





Answer:
4 and 6.
Step-by-step explanation:
There are 4 different grades represented, so for the first question, there are 4 ways that the students can sit if they must sit together by grade.
For the second question, there are 3 grades other than senior level, so it starts with 3 ways that the students can be seated. 3 ways x 2 students per way = 6 ways
Answer:
The volume of this figure = 1800 m ³
Step-by-step explanation:
The volume of prism =( base × height × length ) / 2
=> (15 × 10 × 24 ) /2
=> (3600)/2
=> 1800 m³
Answer:
36
Step-by-step explanation:
Here we a given a rule
It say
÷
And we are given the values of x and y as
x=4 and y = 9
Let us replace them in the rule we are provided with
÷
Applying DMAS rule, which says, first Division ollowed by Multiplication addition and then subtraction .
We first divide 9 by 3
9÷3 = 3
Hence
÷
Now we square first



Hence our final answer will be 36
Well you could factor it by dividing the entire equation by two...
x^2+8x-5=0