3 years ago

No links plz real answers

Mathematics

1 answer:

velikii [3]3 years ago

4 0

Answer:

That answer would be 4 because 26+4 is 30 it should be right

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Find a degree 3 polynomial having zeros -5, 1 and 5 and the coefficient of x^3 equal 1

mote1985 [20]

Answer:

$x^3 -x^2 -25x +25$

Step-by-step explanation:

$\text{The roots are,}~ \alpha = -5,~ \beta = 1 ~ \text{and}~ \gamma = 5\\\\\text{The polynomial is,}\\\\~~~x^3 - (\alpha + \beta + \gamma)x^2+(\alpha \beta + \beta \gamma+ \gamma \alpha)x - \alpha\beta \gamma\\\\=x^3 - (-5+1+5)x^2 +(-5 \cdot 1 + 1 \cdot 5 + 5 \cdot -5)x - (-5)(1)(5)\\\\=x^3 -(0+1)x^2 + (-5+5-25)x +25\\\\=x^3 -x^2 -25x +25$

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2 years ago

What is mean of 8,3,3,7 and 4

Marina86 [1]

The mean is the average of the numbers. To obtain it, you add all the numbers together and divide by the number of numbers. So:

8+3+3+7+4= 25

25:5= 5

So the answer is: the mean is 5.

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3 years ago

On a scale drawing, a school is 1.6 feet tall. the scale factor is 1/22. Find the height of the school

Pie

Answer:

35.2 ft

Step-by-step explanation:

Multiply the scale factor and the height.

6 0

3 years ago

Read 2 more answers

Help is needed! Desperate