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Pani-rosa [81]
3 years ago
14

For each value of u, determine whether it is a solution to 2+9u<-16.

Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
8 0

Answer:

7: no ( the answer will be 65 )

-2 : no ( the answer will be -16 and -16 is not less than -16 instead they're equal)

2 : no ( the answer will be 20 )

-7 : no ( the answer will be -61)

Non of them satisfy the condition

Hope this helped

Hope this helped ALL THE BEST!!

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John's function : y = 3.5x - 4
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Do you agree with the statement that " cubic functions must have at least 1 x-intercept but not more than 3, whereas quadratic f
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Answer:

Yes, I agree

Step-by-step explanation:

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f(x)=ax^3+bx^2+cx+d

A cubic function may have 1, 2 or 3 x intercepts. This is shown below

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y = x^3 - x

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x(x - 1)(x +1 ) = 0

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For 2 x intercepts

y = x^3 - x

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For 1 x intercept

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x = 0

It has been shown above that a cubic function may have 1, 2 or 3.

So, I agree to the statement

For the quadratic function

A quadratic function will not have any x intercept when the function can not be factorized;

E.g.

y = x^2 + x + 17

<em>The above function has no x intercept.</em>

A quadratic function will have at least 1 x intercept when the function can be factorized;

E.g.

y = x^2- 6x + 9

Equate y to 0

x^2- 6x + 9 = 0

Expand

x^2 - 3x - 3x + 9 = 0

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We've shown that a quadratic may have no x intercept, and it may also have x intercept(s)

Hence, I agree to both statement

3 0
2 years ago
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Answer:

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Step-by-step explanation:

Hello!

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