Simplify the expression
-8n+n

Answers

Answer 1

Answer: The answer is -8n + n equals -7n

Answer 2

Answer: Add -8n and n
Answer = -7n

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A figure is part blue and part red.it is 5/8 red what part of the figure is blue

Answers

If $(5)/(8)$ is red, than the remaining $(3)/(8)$ would be blue. $(5)/(8)$ + $(3)/(8)$ would give you $(8)/(8)$ .

Simplify this expression. 2 square root 5 (13 + square root 2)

Answers

The product of 2 square root 5 (13 + square root 2) in simplified form is 26√5 + 2√10

Calculating the product in simplified form

From the question, we have the following parameters that can be used in our computation:

2 square root 5 (13 + square root 2)

Express as products

So, we have

2√5 * (13 + √2)

Open the brackets

So, we have

2√5 * (13 + √2) = 2√5 * 13 + 2√5 *√2

Multiply the radicands

So, we have the following

2√5 * (13 + √2) = 2√5 * 13 + 2√10

Evaluate the products

So, we have the following

2√5 * (13 + √2) = 26√5 + 2√10

Hence, the solution is 26√5 + 2√10

Answers

9 Im 100 % sure i did this too 3/7 of 21:
The "mathematical version" of "of" is "x" or "times"

So:
3/7*21
=21*3/7
=63/7
=9

3/7 of 21 miles is 9

The answer is 9 because 1/7 of 21 is 3 so 3 * 3 =9

De un numero se sabe que si a su cuadrado le restamos su mitad, se obtiene el mismo numero, Cuál es?

Answers

Answer:

Step-by-step explanation:

el 2 al cuadrado es 4 si le restas su mitad(2) tu resultado seria 2

Answer: 2

Step-by-step explanation : el 2 al cuadrado es 4 si le restas su mitad(2) tu resultado seria 2 Espero que ayude Ten un día maravilloso :)

Which of the following option is a better purchase for microwave Option 1. a cash sale $120option 2 $5 down with equal payments of $10 for 15 week
option 3 $10 down with equal payments of 5 for 24 months
option 4 zero down with equal payments of 15 for 9 months

Answers

option 1 is the correct answer

What is the area of a triangle with vertices at (0, −2) ,(8, −2) , and (9, 1) ?
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Answers

The area of a triangle with vertices at (0, −2) ,(8, −2) and (9, 1) is 12 square units

Solution:

Given, vertices of the triangle are A(0, -2), B(8, -2) and C(9, 1).

We have to find the area of the given triangle.

The area of triangle when vertices are given is:

$\text { Area of triangle }=(1)/(2)\left|x_(1)\left(y_(2)-y_(3)\right)+x_(2)\left(y_(3)-y_(1)\right)+x_(3)\left(y_(1)-y_(2)\right)\right|$

$\text { Where, }\left(x_(1), y_(1)\right),\left(x_(2), y_(2)\right),\left(x_(3), y_(3)\right) \text { are vertices of the triangle. }$

Here in our problem,

$\left(\mathrm{x}_(1), \mathrm{y}_(1)\right)=(0,-2),\left(\mathrm{x}_(2), \mathrm{y}_(2)\right)=(8,-2) \text { and }\left(\mathrm{x}_(3), \mathrm{y}_(3)\right)=(9,1)$

Now, substitute the above values in the formula:

$\text { Area of triangle }=(1)/(2)\left|x_(1)\left(y_(2)-y_(3)\right)+x_(2)\left(y_(3)-y_(1)\right)+x_(3)\left(y_(1)-y_(2)\right)\right|$

$\begin{array}{l}{=(1)/(2)|0(-2-1)+8(1-(-2))+9(-2-(-2))|} \n\n {=(1)/(2)|0+8(1+2)+9(2-2)|} \n\n {=(1)/(2)|0+24+0|} \n\n {=(24)/(2)} \n\n {=12 \text { square units }}\end{array}$