Zeroes are when f(x)=0
0=x^2+9x+20
factor
0=(x+4)(x+5)
set each to zero
x+4=0
x=-4
x+5=0
x=-5
zeroes are f(-5) and f(-4)
Answer:
c 4 cal per minute
Step-by-step explanation:
because they burn 40 cal per 10 min and 40÷10 is 4 so 4 cal per 1 min
Answer:
Multiply .38 * 9.3 x 10^7
Equals 35,340,000 miles
Step-by-step explanation:
Answer:
D) 12
Step-by-step explanation:
3x+x=2x+24
4x=2x+24
4x-2x=24
2x=24
x=24/2
x=12
Answer:
![10100](https://tex.z-dn.net/?f=10100)
Step-by-step explanation:
Use this formula,
![\frac{n}{2} (2 {a} + d(n - 1)](https://tex.z-dn.net/?f=%20%5Cfrac%7Bn%7D%7B2%7D%20%282%20%7Ba%7D%20%2B%20d%28n%20-%201%29)
where n is the amount of even intergers, a is the starting term, d is the common difference.
- the amount of even intergers from 2 to 200 is 100
- The starting number is 2
- The common difference is 2
![\frac{100}{2} (4 + 2(99)](https://tex.z-dn.net/?f=%20%5Cfrac%7B100%7D%7B2%7D%20%284%20%2B%202%2899%29)
![50(4 + 198)](https://tex.z-dn.net/?f=50%284%20%2B%20198%29)
![50(202)](https://tex.z-dn.net/?f=50%28202%29)
![10100](https://tex.z-dn.net/?f=10100)