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3 years ago

Which expressions are equivalent to 4(4a+5)4(4a+5)4, left parenthesis, 4, a, plus, 5, right parenthesis ?

Mathematics

1 answer:

mylen [45]3 years ago

7 0

Answer:

If you solve it, it would be 16a+20, but which expressions are you talking about?

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Find an nth-degree polynomial function with real coefficients satisfying the given conditions calulator?

fgiga [73]

Answer:

Degree = 4

Step-by-step explanation:

For the given conditions:

n = 4

i and 5i are zeros

f(-2) = 145

For zeros, it means they are a quadratic factor of the expression

It means, we will have x = ± i and x = ± 5i

therefore, the given factors are (x - i)(x + i)(x - 5i)(x + 5i)

Hence, we have the function

given degree = 4

f(x) = a(x-i)(x+i)(x-5i)(x+5i)

f(x) = a(x² + 1)(x² + 25)

Hence, substituting -2 for x, we have

f(-2) = a(5)(29) = 145

Hence, a = 1

f(x) = x⁴ + 26x² + 25

Therefore, we can see that the given degree = 4

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3 years ago

Three people become infected with a virus that spreads quickly. Each day that passes, the number of infected people doubles. How

avanturin [10]

$3x \times 2 = y$
this is what I would come up with because.
y=the number of people infected
x=the number of days that have passed

5 0

3 years ago

Read 2 more answers

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sladkih [1.3K]

Answer:

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Step-by-step explanation:

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sleet_krkn [62]

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Step-by-step explanation:

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