3 years ago

There are 7 row of 9 people how many people in all

Mathematics

1 answer:

yuradex [85]3 years ago

3 0

Answer:

Step-by-step explanation:

You simply just multiply the 7 and 9.

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lawyer [7]

Answer:

s=21

Step-by-step explanation:

given ,

area=441cm^2

length (l)=s

we know,

or,l^2=441cm^2

or,l=√441cm^2

or,l=21cm

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PLEASE HELP :/ Write an equation that represents the transformations formed by the following items:

MakcuM [25]

Answer:

I have no idea.

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Can the triangles be proven similar by AA? answers: A) Yes, because || . B) No, similar triangles cannot contain a pair of paral

mr_godi [17]

Answer:

Step-by-step explanation:

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Which of the following is a polynomial with roots negative square root of 5, square root of 5, and 3?

Alex Ar [27]

Answer:

$x^{3}-3x^{2}-5x+15$

Step-by-step explanation:

The roots of the given polynomial are: $-\sqrt{5}, \sqrt{5}, 3$

Since, $-\sqrt{5}, \sqrt{5}, 3$ are the roots of the polynomial, according to the factor theorem, $(x - (-\sqrt{5})), (x-\sqrt{5}), (x-3)$ would be the factors of the polynomial.

Since we have the factors of the polynomial, we can multiply them to get the desired polynomial.

Let the polynomial be represented by P(x), so

$P(x) = (x - (-\sqrt{5}))(x-\sqrt{5})(x-3)\\\\ P(x)=(x +\sqrt{5})(x-\sqrt{5})(x-3)\\\\ P(x)=(x^{2}-(\sqrt{5} )^{2})(x-3)\\\\ P(x)=(x^{2}-5)(x-3)\\\\ P(x)=x^{3}-3x^{2}-5x+15$

The polynomial represented by P(x) has the given roots.

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3 years ago

The area of a square is 81 cm2 . Find the perimeter of the square. Determine the diagonal of the square.

sammy [17]

Answer:

s×s=81

s square =81

s=81 square root

s=9cm

perimeter =4×s

=4×9=36 cm

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3 years ago