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2 years ago

Simplify the expression 9xy^2 - 11xy^2

Mathematics

1 answer:

tekilochka [14]2 years ago

7 0

Subtract 11xy^2- from 9xy^22 to get -2xy^2

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*EASY 7TH GRADE MATH*

lora16 [44]

Answer:

2880

Step-by-step explanation:

The base is made up of two triangles and a square, if that makes sense. Finding the area of a triangle is (base x height)/2.

The base of the tiny triangle is 4 because there is 8 inches extra to the 10 inch square. 10 x 4 = 40.

Now we have a 10 by 10 square: 10 x 10 = 100.

So, the area of the trapezoid is 140. There are two trapezoids in this prism, so both bases are 280.

The surface area of the sides are solved by 12 x 50 = 600. Together, the sides equal 1200.

The top is solved by 10 x 50 = 500.

The bottom is solved by 18 x 50 = 900.

Add them all together: 280 + 1200 + 500 + 900 = 2,880

4 0

2 years ago

Alaska has a land area of about 1700000 square miles Florida has a land area one tenth of the size of Alaska what is the land ar

AnnyKZ [126]

Answer:

The land area of Florida is $170,000\ mi^2$

Step-by-step explanation:

Let

x -----> the land area of Alaska in square miles

y -----> the land area of Florida in square miles

we know that

The linear equation that represent this problem is equal to

$y=\frac{1}{10}x$ ----> equation A

$x=1,700,000$ ----> equation B

substitute equation B in equation A and solve for y

$y=\frac{1}{10}(1,700,000)=170,000\ mi^2$

Remember that

Florida's land area is one-tenth the size of Alaska is the same as to say that Alaska's land area is ten times the size of Florida

8 0

2 years ago

Differentiation Find the formula to find the gradient

Alla [95]

Answer:

x + 4/3x^3

Step-by-step explanation:

y=1/2x^2-2/3x^-2

dy/dx=1/2(2x)-2/3(-2x^-3)

=x+4/3 x^-3

=x+4/3x^3

6 0

2 years ago

Read 2 more answers

Factor this polynomial 6x^2 + 19x – 7.

kondaur [170]

Answer:

(3x-1) (2x+7)

8 0

2 years ago

Ayudenme porfavor en esta tarea

Elza [17]

This task simply requires the completion of the table using simple mathematical functions on the header of each column.

<h3>What are mathematical functions?</h3>

This refers to a collection of mathematical rules using mathematical operators that contain dependent and independent variables.

In this case, the rule of BODMAS comes to bear. See the full and completed table attached.

Learn more about mathematical functions at:

brainly.com/question/25638609

#SPJ1

Download xlsx

xlsx

7 0

1 year ago