To solve this one you just need to add all of the minutes each student said, then you can divide them by the total number of students and that would be the mean travel time of students
Answer:
Step-by-step explanation:
<u>Given</u>
- Rectangle with sides of 20 in and x+2 in and perimeter of 68 in
<u>Perimeter = 2(l + w)</u>
- l = 20 in, w = x + 2 in, P = 68 in
<u>Substitute values in perimeter formula</u>
- 68 = 2(20 + x + 2)
- 34 = x + 22
- x = 34 - 22
- x = 12 in
<u>Then, the value of width is</u>
<u>Area of rectangle</u>
<u>Area of circle</u>
- A = πr² = 3.14*7² = 153.86
<u>Shaded area </u>
- 280 - 153.86 = 126.14 in²
Answer:
B. 5x^2 -4
Step-by-step explanation:
(f+g)(x) = f(x) + g(x)
= (4x^2 +1) +(x^2 -5) . . . . . . substitute for f(x) and g(x)
= x^2(4 +1) +(1 -5) . . . . . . . . collect terms
(f+g)(x) = 5x^2 -4
Step-by-step explanation:
Tn=ar^(n-1)
r=-10/-5=2
a=-5
Tn=-5×(2)^(n-1)
Tn=-5•(2)^(n-1)
an=5•(2)^(n-1)
The answer to your question is 55.93