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kicyunya [14]
3 years ago
11

Which of the following values of r will result in a true statement when substituted into the given equation?

Mathematics
2 answers:
galben [10]3 years ago
4 0

Answer:

B. r = -5 is the answer.

Charra [1.4K]3 years ago
3 0

Answer:

the right answer is -5 (B)

Step-by-step explanation:

-(-5) +5(-5+2)

5 + -15 = -10

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Is this a relation: {(-2,1), (0,0), (0,1), (1,-2), (1,0), (1,3), (2,0)}? Explain why or why not.
tatiyna

It is a relation because any relation is simply a set of (x,y) values known as points or ordered pairs. There are no other qualifications needed to be a relation. We simply pair up any x and y value we want.


I think you meant to ask if it's a function or not. If so, then the answer is "no, it is not a function". Why not? Because the x value x = 0 produces more than one y output y = 1 and y = -2. Graph these points and you'll see them fail the vertical line test (ie its possible to draw a vertical line through more than one point on the graph). The same issue happens with (1,-2), (1,0) and (1,3) as well.


In summary:

Yes it is a relation

No it is not a function

The reasoning for each is stated above

4 0
3 years ago
Which graph represents the solution set of the system of inequalities?<br><br> {y&lt;−3x−2y≤x−2
melamori03 [73]

Answer:

789

Step-by-step explanation:

3 0
3 years ago
PLEASE HELP!<br><br> Reduce to simplest form.<br> 5/8 - (- 7/2)
Daniel [21]

Answer:

\huge\boxed{\sf 4\frac{1}{8} }

Step-by-step explanation:

\sf =\frac{5}{8} - (-\frac{7}{2} )\\\\Rule : ( - *- = +)\\\\\=\frac{5}{8} +\frac{7}{2} \\\\LCM = 8\\\\\=\frac{5+28}{8} \\\\\=\frac{33}{8} \\\\=4\frac{1}{8}

\sf =\frac{5}{8}+ \frac{7}{2}  \\\\=\frac{5+28}{8}

\sf =\frac{33}{8} \\\\=4\frac{1}{8}

Hope this helped!

<h2>~AnonymousHelper1807</h2>
7 0
3 years ago
Is it possible to draw a triangle whose angles measure 50°, 50°, and 80°?
Firdavs [7]
First of all, we know a quality of all interior angles of a triangle, they should add to 180 degrees. 

Does 50+50+80 degrees give 180 degrees? 

100+80=180 degrees 

Therefore, yes, it is possible to draw a triangle with the angle measures given to be 50, 50 and 80 degrees. 

Hope I helped :) 
5 0
3 years ago
Can someone help me with the ones that aren’t done
garri49 [273]

5:

C = 5/9(F - 32)

C = 5/9(F) - 17.777

-5/9(F) + C = -17.777

-5/9(F) = -C - 17.777

F = 5/9(C) + 32.0306

7 0
3 years ago
Read 2 more answers
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