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Tema [17]
3 years ago
6

Given f(x) = x^3 + kx + 9, and x + 1 is a factor of f(x) , then what is the value of the of k?

Mathematics
1 answer:
attashe74 [19]3 years ago
8 0
Can you please help me I really need help with math
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Answer:

3.5b - 40 where b is the amount of banners sold.

Step-by-step explanation:

We know the team has already spent $40, and they earn #3.5 per banner.

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Step-by-step explanation:

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Solve by any method <br> y= -7x+10<br> y= -3x+6
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Y=1
To get it, you use the method of substitution. So you swtich the top y by the equation of the bottom=-3x+6=-7x+10. You first add 7x to each side=4x+6=10 then you minus 6 from each side=4x=4 which is 1
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3 years ago
What is the sum of the first five terms of the geometric sequence in which a1=10 and r=1/2?
Tomtit [17]
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20(1-1/32)
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If your friend leaves your house at a speed of 8mph and two hours later you follow in your car at 40mph, how long will It be bef
dusya [7]

Answer:

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Step-by-step explanation:

Your friend has a head start of (2 h)×(8 mi/h) = 16 mi.

When you leave, you gain on your friend at the rate of 40 mph - 8 mph = 32 mph. So, it will take ...

  (16 mi)/(32 mi/h) = 1/2 h

for you to reduce the distance between you to zero.

In that 1/2 hour, you have traveled ...

  (1/2 h)×(40 mi/h) = 20 mi

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This is the same distance your friend has traveled in 2.5 hours at 8 mi/h.

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3 years ago
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