Answer:
a = 8
Step-by-step explanation:
x-1 = 0
x = 1
let x³ + ax² -x -8 be p(x)
hence, p(1) = (1)³ + a(1)² -1 -8 = 0 (since, x-1 is a factor)
= 1 + a - 1-8
= a - 8 = 0
therefore, a = 8
Answer:
The value of π = 22/7 = 3.14
So here the Equation given we can examine those
1. 3π -1 > 9
=> (3 * 3.14 ) -1 > 9
=> 9.42 – 1 > 9
=> 8.42 > 9 , which is false
2. 7π > 21
=> (7 * 3.14) > 21
=> 21.98 > 21 , Which is true
3. π + 4 < 7
=> 3.14 + 4 <7
=> 7.14 <7 , Which is false
4. (12/ 4π) > 1
=> {12/ (4 * 3.14)} > 1
=> (12/12.56) > 1
=> 0.955 > 1 , Which is false
Know more about “Mathematical equation ” here: brainly.com/question/116018
#SPJ9
Answer:
ur hand writing its very nice also what grade are u in
Step-by-step explanation:
Answer: The volume is approximately 62.8
Step-by-step explanation:
v= 
* r^2 *h
v= 3.14 * 4 * 5
v= 62.8
Answer: I wasn't sure if number 18 was 350.00 but that's what I put down to do the problem hope I'm not too late.
9. $72.45
10. $15.52
11. $30.69
12. $48.95
13. $6.39
14. $67.6
15. $18.02
16. $51.6
17. $11.25
18. $175.00
19. $3.20
20. $10.00
21. $31.25
22. $45.90
Step-by-step explanation:
