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3 years ago

Write a polynomial of least degree with roots 9 and -3

Mathematics

1 answer:

Effectus [21]3 years ago

4 0

Answer:

y = x^2 -6x -27

Step-by-step explanation:

When "a" is a root, (x-a) is a factor. The minimum polynomial with the listed roots will be ...

y = (x -9)(x +3)

y = x^2 -6x -27

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Akira receives the prize at the science fair for having the most informative project her trophy is in the shape of a square pyra

mina [271]

Answer:

Akira needs 45 square inches of gold foil to cover the chair free including the bottom

Step-by-step explanation:

Total surface = surface area of the base square + area of 4 triangles

Step 1: The surface area of the base square

surface area of the base = surface area of the square = $s^2$

where s is the side length

The the surface area of the base = $3^2$ = 9 square inches

Step 2: The surface area of the side triangles 

The area of the triangle = $\frac{1}{2}\times \text{side length} \times \text{slant height}$

On substituting the values,

The area of the triangle = $\frac{1}{2} \times 3 \times 6$

The area of the triangle = $\frac{18}{2}$

The area of the triangle = 9 square inches

Now the area of 4 triangles = 4 x 9 = 36 square inches

Thus the total surface area = 9 + 36 = 45 square inches

7 0

3 years ago

Read 2 more answers

Complete the point slope equation of the line through(-1,-10)and(5,2). y-6=

Lynna [10]

Answer:

Step-by-step explanation:

The point-slope of an equation of a line:

$y-y_1=m(x-x_1)$

m - slope

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

We have the poinys (-1, -10) and (5, 2). Substitute:

$m=\dfrac{2-(-10)}{5-(-1)}=\dfrac{12}{6}=2$

Put the value of the slope and the coordinateso f the point (5, 2), to the equation of a line:

$y-2=2(x-5)$

In the question we have y - 6 = ...

Therefore

$y-2=2(x-5)$ subtract 4 from both sides

$y-6=2(x-5)-4$ use the distributive property

$y-6=2x-10-4$

$y-6=2x-14$ distributive

$y-6=2(x-7)$

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3 years ago

You want to estimate the number of students in your school who support extra funding for the history club. You survey every nint

Lyrx [107]

Answer:

unbiased

Step-by-step explanation:

it would be biased if you lets say survey the history club kids

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3 years ago

What are three triangles that are classified by angles?

Law Incorporation [45]

❅☃ Scalene **All sides are different, none are the same**
❅☃ Equilateral **all three sides are equal in size and value** and
❅☃Isosceles **two sides are equal in size and/or value**

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3 years ago

What is the limiting sum of the following geometric series? 2000 - 1200 + 720 - 432 ...

irina1246 [14]

Answer:

your answer is 1088

Step-by-step explanation:

hope it helps

7 0

3 years ago