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3 years ago

How to solve (x-10)(x + 10) in word form

1 answer:

6 0

You will distribute, you will do x times both x and postive Ten in the second set of parenthesis, and then you will do negative Ten times x and also positive Ten and then you combine like terms when you got both end products

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Which expressions represent the area of the entire shaded region, including the light and dark shading? select three options. 12

Alex Ar [27]

A triangle is a polygon. The total area of the figure can be represented by 12a, (6a+b), and 2b cm².

<h3>What is a triangle?</h3>

A triangle is a polygon with 3 sides and 3 vertices.

Since the area of a single triangle is a cm², and the shape is formed of 12 triangles, therefore, the area of the 12 triangles will be equal to,

$\text{Area of the complete figure} = 12 \times a = 12a\rm \ cm^2$

Given that the area of the complete dark portion is b cm², therefore, the area of the 6 triangles with a cm² of area each, and the black portion can be written as,

$\text{Area of the complete figure} = (6 \times a)+b = (6a+b)\rm \ cm^2$

As the dark portion also consists of 6 triangles with an area of a cm² each and the total sum of this dark area is b cm². Also, the light portion consists of 6 triangles with an area of a cm². Therefore, the total area can be written as,

$\text{Total area} = 6a+6a = b+b = 2b\rm\ cm^2$

Thus, the total area of the figure can be represented by 12a, (6a+b), and 2b cm².

Learn more about Triangles:

brainly.com/question/2773823

6 0

2 years ago

An automated teller machine at a local bank is stocked with $10 and $20 bills. When a customer withdraws $40 from the machine, i

cestrela7 [59]

Answer:

There are 4 possibilities

Step-by-step explanation

Each customer has 2 ways to receive the money. For each way, the other customer has 2 option, giving a total of 2*2 = 4. Here are the possibilities, separating in 2 different cases.

Case 1: customer 1 withdraws 2 $20 bills

option 1.1: customer 1 withdraws 2 $20 bills AND customer 2 withdraws 2 $20 bills

option 1.2: customer 1 withdraws 2 $20 bills AND customer 2 withdraws 4 $10 bills

Case 2: customer 1 withdraws 4 $10 bills

option 2.1: customer 1 withdraws 4 $10 bills AND customer 2 withdraws 2 $20 bills

option 2.2: customer 1 withdraws 4 $10 bills AND customer 2 withdraws 4 $10 bills

options 1.1, 1.2, 2.1 and 2.2 give us a total of four ways for the customers to retrieve thier money.

5 0

3 years ago

To fence in 2 cows, Josle used 80 feet of fence. For 3 cows, she used 120

Dahasolnce [82]

Answer:

240

Step-by-step explanation:

If you have 80 for 2, 120 for 3, and 160 for 4. First you much find how much fence she will use for one cow, therefore you divide the number of fences in feet by the number of cows she is using it for. When you do that you realize that 40 feet of fence is used for 1 cow and if you mutliply 40 by 6 you get 240 feet which is your answer.

5 0

3 years ago

Can someone please help me !

Schach [20]

$2)~3x\to\text{Linear Monomial, because it's of 1st degree.}\to B\\\\
3)~2x^4-x+5\to\text{Quartic Trinomial, because it's of 4th degree.}\to C\\\\
4)~(2x^2-5x+6)+(5x^2-3x+4)=(2x^2+5x^2)-(5x+3x)+(6+4)\\\\
=7x^2-8x+10\to A$

8 0

3 years ago

-0.4(0.5z + 4) = 3.2<br> What is the answer for this

netineya [11]

Answer:

z = - 24

Step-by-step explanation:

Given

- 0.4(0.5z + 4) = 3.2 ( divide both sides by the multiplier - 0.4 )

0.5z + 4 = - 8 ( subtract 4 from both sides )

0.5z = - 12 ( divide both sides by 0.5 )

z = - 24

6 0

3 years ago

Read 2 more answers