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mr_godi [17]
3 years ago
13

Is this relation a function?

Mathematics
1 answer:
mr_godi [17]3 years ago
5 0

Answer:

Yes, this is a function

Step-by-step explanation:

ok

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What is the distance between -13 and 13
Andre45 [30]

Answer:

26

Step-by-step explanation:

-13+13=0

0+13=13

13+13=26

4 0
3 years ago
The value of varies directly with x. when y = 7.5 , x = 5. what is the value of y when x = 80?
AfilCa [17]

Answer:

x=120

7.5 = 5 \\ x = 80 \\  \frac{5x}{5}  =  \frac{600}{5}  \\ x = 120

4 0
3 years ago
The sides of a triangle have lengths of x, x + 5, and 25. If the longest side is 25, which of the following values of x would ma
Amiraneli [1.4K]
In a right angle, the sum of the squares of the two shorter sides is equal to the square of the longest side.
Here, the longest side is 25, the shorter sides are x and x+5.

x^2+(x+5)^2=25^2 \\
x^2+x^2+10x+25=625 \\
2x^2+10x+25=625 \ \ \ |-625 \\
2x^2+10x-600=0 \ \ \ |\div 2 \\
x^2+5x-300=0 \\
x^2+20x-15x-300=0 \\
x(x+20)-15(x+20)=0 \\
(x-15)(x+20)=0 \\
x-15=0 \ \lor \ x+20=0 \\
x=15 \ \lor \ x=-20


The length of a side must be a positive number, so x=15.
The answer is C.
6 0
4 years ago
What equation can be solved to find one of the missing side lengths of a triangle?
RUDIKE [14]

Answer:

Step-by-step explanation:

1 find out what kind of  its is

if its equivelent you might use 60 as thee angles then find out

7 0
3 years ago
Please help me with this
tester [92]

Answer:

(3,1) and (0,2)

Step-by-step explanation:

6 0
3 years ago
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