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3 years ago

What is the number of 20% of 40

Mathematics

1 answer:

mote1985 [20]3 years ago

3 0

Answer:

Step-by-step explanation:

40 x 0.20

= 8

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A bag contains four batteries

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2 years ago

Julie pays $30 a month for her phone plus $2 for each

erastovalidia [21]

Answer:

Step-by-step explanation:

You can look at the graph and infer that the line passes through 32 34 36 and so on

you can substitute y for the bill and x for the number of songs to see which graph is correct

y = 30 + 2x

For A, the line goes through 32 34 36 38 40 42 44 46 and 48

You can plug in 32 for y and 1 for x and so on

32 = 30 + 2*1 = 30 + 2

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3 years ago

Use the Factor Theorem to show that (x - 3) is a factor of the polynomial

Katyanochek1 [597]

Answer:

P(3) = 0

Step-by-step explanation:

Factor Theorem is a consequence of Remainder Theorem.

Remainder Theorem states that if polynomial f(x) is divided by a binomial (x - a) then the remainder is f(a).

Factor Theorem states that if f(a) = 0, then the binomial (x - a) is a factor of f(x).

We have the polynomial

$P(x) = x^5-3x^4+5x^3-15x^2-6x+18$

To prove that x-3 is a factor of P, we calculate P(3):

$P(3) = 3^5-3*3^4+5*3^3-15*3^2-6*3+18$

$P(3) = 243-243+135-135-18+18$

$P(3) = 0$

Thus, x-3 is a factor of P(x)

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3 years ago

Find the indicated root. Plz help

Zarrin [17]

Answer:

$x^{15/3} =x^{5}$

Step-by-step explanation:

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What is the number of 20% of 40￼

What is the number of 20% of 40