Answer:
k = 3.
Step-by-step explanation:
By the Factor Theorem. if x+a is a factor of f(x) then f(-a) = 0.
Here we use f(-1):
f(-1) = (-1)^3 + 2(-1) + k = 0
-1 - 2 + k = 0
k = 3.
Answer:
54 miles
Step-by-step explanation:
4.5 miles each day except Sunday is 6 days per week
In 2 weeks, she runs 12 days
4.5 miles × 12 = 54 miles
Answer: x = 25%
Step-by-step explanation: 45% + 30% = 75%
75% + 25% = 100%
Hello!
We know that 1 minute = 60 seconds.
5 minutes = 300 seconds because 60 × 5 = 300
360 seconds would be 6 muinutes. 420 seconds would be 7 minutes. That means 480 seconds = 8 minutes, so 8 minutes have passed.
10 ones = 1 ten
6 tens 3 ones
63
