If-1 is a root of f), which of the following must be true?

Mathematics

1 answer:

ANEK [815]2 years ago

6 0

Answer:

A factor of f(x) is (x + 1).

Step-by-step explanation:

When we put x+1= 0 then we get the value x= -1

This value is then put into the function to find out whether it is a root or not. For a root to exist it must not have a remainder or the remainder must be zero.

Suppose the function is

F(x)= 2x³ - 42x - 40

f(-1)= 2(-1)³ - 42(-1) - 40

f(-1)= -2 + 42- 40

f(-1)= 0

This gives -1 as the root of the function.

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Is - 29/8 < , > or = - 3.62

andreyandreev [35.5K]

When -29/8 is written as a decimal it becomes
$- 3.625$
Which is equivalent to -3.63, rounded to the nearest hundredth.

Now from here we will be able to tell if they're < , > or =

So, -3.63 is > -3.62

ANSWER: -29/8 > -3.62

3 0

3 years ago

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Kryger [21]

Answer:

a. The time to strike the ground is 5 seconds

b. The time for the ball to be over than 96 ft is 1 second

Step-by-step explanation:

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∴ s(t) = 0 ⇒ $80t-16t^{2}=0$