In this question, you have to form the equation given the formula of the volume : L x W x D
L = W+5
W = W
D = W-1
(W+5)(W)(W-1) = 20
(W^2+5W)(W-1) = 20
W^3+4W^2-5W-20 = 0
Get the roots by factoring it out.
<span>(w +4) *(w +2.236) *(w -2.236)
</span>
So the roots are: -4, -2.236, 2.236.
Since we're talking about dimensions, let's use the positive root..
L = 7.24
W = 2.24
D = 1.24
Formula for Surface Area of a Prism: lateral area + area of 2 ends
Lateral area = 65
Area of base = 16 (2)
SA = 65 + 16(2)
SA = 65 + 32
SA = 97
Answer: 15
Step-by-step explanation:
Given: The present ratio of students to teachers at a certain school is to . If the student enrollment were to increase by students and the number of teachers were to increase by , the ratio of students to teachers would then be to .
To Find: What is the present number of teachers.
Solution:
let the number of teachers in schools are
As the current ratio of students to teachers is to
Number of students in school are
Now,
If number of student enrollment and teachers were to increase by and respectively.
New number of students in school would be
New number of teacher in school would be
new ratio of students to teachers is
Hence the number of teachers in school is
Answer:
1) 2
2) 3
3) y = 2x + 3
Step-by-step explanation:
I'll be expecting that brainliest :)
The answer would be 3 because both y points are equal so you look at the difference between the x points. The difference of 4 and 7 is 3. If this is right could I possibly have brainliest? Hope this helped!! :)