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1 year ago

Come and get Brainliest!!!

Mathematics

1 answer:

gtnhenbr [62]1 year ago

6 0

Answer:

A: 10x^2 +53x +63 B: degree 2; quadratic trinomial C: the result of the multiplication of polynomials is a polynomial

Step-by-step explanation:

Part A:

The area is the product of length and width. The distributive property is useful for simplifying the expression.

A = LW

A = (2x +7)(5x +9) = 2x(5x +9) +7(5x +9)

A = (10x^2 +18x) +(35x +63)

A = 10x^2 +53x +63 . . . . area expression

Part B:

The highest power of x is 2. There are 3 terms. A degree-2 polynomial is called a "quadratic." A 3-term polynomial is called a "trinomial."

degree 2

quadratic trinomial

Part C:

In part A we multiplied two polynomials and came up with a result that is a polynomial. This suggests polynomials are closed with respect to multiplication.

I hope this helps!!

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Y is directly related to x and y is 81 when x is 27 the constant of.variation is

suter [353]

Answer:

The constant of variation is 3

Step-by-step explanation:

Given.

$y=81$

$x=27$

And y is directly related to x

$y$ ∝ $x$

Here k is constant of variation

$y=kx$

$k=\frac{y}{x}$ --------------(1)

Put the $y$ and $x$ value in equation 1.

$k=\frac{81}{27}$

$k=3$

So, the constant of variation is 3.

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2 years ago

Micheal works 15.5 hours each week of a music store. He earns $9.48 per hour. How much does Micheal earn each week?

MissTica

All you have to do is times 15.5 with 9.48 and you get your answer witch is $146.94

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2 years ago

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A circle has a diameter of 22 cm. What is its circumference?

charle [14.2K]

Answer:

$\boxed {\tt 69.08 \ centimeters}$

Step-by-step explanation:

The circumference of a circle can be found using the following formula:

$c= \pi d$

where d is the diameter. We know the diameter of the circle is 22 centimeters. Substitute the value in for d.

$d= 22 \ cm$

$c= \pi* 22 \ cm$

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garri49 [273]

So you have 5.36
that is 5 wholes and 0.36
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simplify it to 9/25
Now you have the mixed number
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2 years ago

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Answer:

Below in bold.

Step-by-step explanation:

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