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pychu [463]
3 years ago
14

Write an equation of each line in point-slope form. containing (2,1) and (3,4)

Mathematics
1 answer:
Leokris [45]3 years ago
7 0

Answer:

y=3x-5

Step-by-step explanation:

This is the only line that will pass through these points.

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What is the equation of a circle centered at the origin with radius 20.. i cant find the answer and i even tried?
KIM [24]
General equation of a circle with centre (h, k) is given by:

(x - h)^{2} + (y - k)^{2} = r^{2}

Now, the origin is the centre and radius is 20, so substituting these points in yields:
x^{2} + y^{2} = 20^{2}
x^{2} + y^{2} = 400
4 0
3 years ago
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Which expression is equivalent to 4 (3n - 5)?
mart [117]

Expression 4 (3n - 5) is equivalent to <em><u>C: 12n - 20</u></em>

<h3>Further explanation </h3>

Algebraic expressions in mathematics are a combination of coefficients, numbers, variables, constants and arithmetic operations such as addition, subtraction, multiplication, and division.

The main composition of algebraic expressions are:

  • 1. phrases

algebraic forms separated by arithmetic operations

consists of one phrase (monomial) to many phrases (polynomial)

  • 2. variable

is a value that can be changed, can be in the form of letters, for example, x, y, a, b, etc.

  • 3. constants

is a fixed value, can be a number

  • 4. arithmetic operations  ⇒ +, - , : , x

Calculation operations include multiply, divide, add, substract, etc.

There are several properties in integer multiplication operations

  • 1. closed property

Multiplication between integers will produce integers too

  • 2. commutative property

a x b = b x a

  • 3. associative property

ax (bxc) = (axb) xc

  • 4. identity

ax1 = 1 x a = a

  • 5. distributive  property

*<em> addition </em>

ax (b + c) = axb + axc

* <em>substraction </em>

ax (b-c) = axb - axc

We can use distributive  property  of <em>substraction   </em>to solve the problem

\displaystyle =4(3n-5)\\\\=4x3n - 4x5\\\\=12n-20

"Equivalent to" means having the same value.

From the answer choices , which produce the same expression is C. 12n-20

<h3>Learn more </h3>

6 squared divided by 2 (3) +4

brainly.com/question/376058

an algebraic expression

brainly.com/question/20988

brainly.com/question/2285423

Keywords: PEMDAS, arithmetic operations, multiply, Parentheses, equivalent to

5 0
3 years ago
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In Justin's school, 0.825 of the students participate in a sport. If there are one thousand students in Justin's school, how man
Oksi-84 [34.3K]

Answer:

Okay I’m confused because there is no decimals in the answer, but the answer is 825. I guess you can put 825.00 if you want.

Step-by-step explanation:

Multiply 0.825 and 1000 together to get the answer

4 0
3 years ago
Help please I will be answering your questions too ;)
olga2289 [7]
The answer is D. 8/3, because 3/10 times 8/3 is equal to 0.8. 4/5 equals to 0.8 also. so thats the right answer
6 0
3 years ago
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*PLEASE ANSWER, DIFFICULT QUESTION*
Dimas [21]

the set of solutions of the equation |f(x)|=a

is always equivalent to sum of sets of solutions of equations:

f(x)=a

and

f(x)=-a

therefore correct answer is the first and the second equation

7 0
3 years ago
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