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2 years ago

PLEASE HELP!!! 3.05

Mathematics

2 answers:

Readme [11.4K]2 years ago

6 0

Answer:

I just did this assignment, so I will add my notes for you, to help others as well!

Step-by-step explanation:

Hope this helps!

Download pdf

Brilliant_brown [7]2 years ago

3 0

The new polynomial identity is 2(x² + 2xy + y²)

Given,

The polynomial identities

Column A Column B

(x − y) (x2 + 2xy + y2)

(x + y) (x2 − 2xy + y2)

(y + x) (ax + b)

(y − x) (cy + d)

We have to square an identity from column A and add it with any one identity from column B.

So,

Lets take (x + y)

(x + y)² = x² + 2xy + y²

We can add this identity with x² + 2xy + y² in column B.

That is,

x² + 2xy + y² + x² + 2xy + y²

= 2x² + 4xy +2 y²

= 2(x² + 2xy + y²)

That is,

The new polynomial identity is 2(x² + 2xy + y²)

Learn more about polynomial identity here;

brainly.com/question/11491967

#SPJ1

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Please help thank you.

marusya05 [52]

This problem can be completed in 2 ways. Both are acceptable.

Option 1:

This is an isosceles trapezoid that can be divided into a rectangle and two congruent triangles.

The area of the rectangle is the base times the height.

$9 \times 4=36$

The area of one of the triangles is half the base times the height.

$\dfrac{1}{2} \times 5 \times 4 = 10$

The other triangle must have that area too.

$36+10+10=56$

The area is 56 square centimeters.

Option 2:

We can use the area formula for the trapezoid.

$A=\dfrac{b_1+b_2}{2} \times h$

Where $b_1$ is the length of the shorter base
and $b_2$ is the length of the longer base
and $h$ is the height.

The length of the shorter base is 9.
The length of the longer base is 9+5+5, or 19.

The height is 4.

$A=\dfrac{9+19}{2} \times 4$

$=56$

Same answer. The area is 56 square centimeters.

Both options are two acceptable ways the problem can be tackled.

7 0

3 years ago

$2.25

DiKsa [7]

2.50 that is the answer

8 0

3 years ago

A store buys an item for $10. To earn a PROFIT of $25, what percent does 13 po

LuckyWell [14K]

Answer:

150%

Step-by-step explanation:

25-10= 15

15/10 = 1.5

1.5 = 150%

6 0

3 years ago

Find the perimeter of the following rectangle.

Ede4ka [16]

So the formula to workout the area of a rectangle is height X width

so 11/3 x 5/8

which is 55/24 ft if they want a mixed number then... 2 $\frac{7}{24\\}$

hope this helps

6 0

2 years ago

The average fleet-wide performance of light duty trucks has made constant improvement since 1980. For example, the time for the

andrew11 [14]

A) T(m) = -0.16m +331.3

B) T(2015) = 8.9 . . . seconds

_____
The linear regression function of a graphing calculator can find the equation of the line easily. Or, you can use the 2-point form of the equation of a line.
.. T(m) = (10.5 -14.5)/(2005 -1980)*(m -1980) +14.5
.. T(m) = -0.16(m -1980) +14.5

8 0

3 years ago