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Tasya [4]
3 years ago
8

What are the algebra proof 13-4(x-2)=36+5?

Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
4 0
The answer is x= -5


Explanation:
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Allison wants to calculate the speed of a sound wave.<br> Which formula should she use?
Sphinxa [80]

Answer:

speed = distance/time

Step-by-step explanation:

The faster a sound wave travels, the more distance it will cover in the same period of time. If a sound wave were observed to travel a distance of 700 meters in 2 seconds, then the speed of the wave would be 350 m/s.

6 0
2 years ago
Read 2 more answers
Which set of numbers could represent the side lengths of a right triangle?
sveticcg [70]

Answer:  D) 8, 15, 17

<u>Step-by-step explanation:</u>

In order for three side lengths to represent a right triangle, they must satisfy the Pythagorean Theorem: a² + b² = c²    where c is the largest side.

A) 2² + 3² = 4²

   4  +  9   = 16      

       13      = 16      FALSE

B) 4² + 5² = 6²

  16  + 25 = 36

       41     = 36       FALSE

C) 6² + 9² = 12²

   36 + 81 = 144

       117    = 144       FALSE

D) 8² + 15² = 17²

  64 + 225 = 289

       289    = 289     TRUE!

8 0
3 years ago
A quadratic equation can be written in vertex form or in standard form. Sometimes one form is more beneficial than the other. Id
Ilia_Sergeevich [38]
Below are suppose the be the questions:

a. factor the equation 
<span>b. graph the parabola </span>
<span>c. identify the vertex minimum or maximum of the parabola </span>
<span>d. solve the equation using the quadratic formula
</span>
below are the answers:

Vertex form is most helpful for all of these tasks. 
<span>Let </span>
<span>.. f(x) = a(x -h) +k ... the function written in vertex form. </span>

<span>a) Factor: </span>
<span>.. (x -h +√(-k/a)) * (x -h -√(-k/a)) </span>

<span>b) Graph: </span>
<span>.. It is a graph of y=x^2 with the vertex translated to (h, k) and vertically stretched by a factor of "a". </span>

<span>c) Vertex and Extreme: </span>
<span>.. The vertex is (h, k). It is a maximum if "a" is negative; a minimum otherwise. </span>

<span>d) Solutions: </span>
<span>.. The quadratic formula is based on the notion of completing the square. In vertex form, the square is already completed, so the roots are </span>
<span>.. x = h ± √(-k/a)</span>
6 0
2 years ago
Where does -5 5/6 go between -5 and -6 on a number line
Murljashka [212]
3157 tshjb. Josh. Job n McJob
4 0
3 years ago
Which of the following is a non-linear equation?
Lana71 [14]

Answer:

iv ; xy + x/y = 3

Step-by-step explanation:

A non linear equation is one in which there is no product of two different variables or the same variable

What this mean is that we have the highest polynomial power as 1 or we simply have polynomials of degree 1

Looking at the given options, we can see the product xy

What this mean is that the polynomial is of degree 2 and that makes the equation a non linear as we have a polynomial of more than 1 degree

8 0
2 years ago
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