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zzz [600]
3 years ago
12

X squared minus 25 equals 0

Mathematics
1 answer:
Yuri [45]3 years ago
7 0
x^2-25=0\\
x^2=25\\
x=\sqrt{25}\\ x=-5 \vee x=5

or

x^2-25=0\\
(x+5)(x-5)=0\\
x=-5 \vee x=5

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Step-by-step explanation:

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3 years ago
Which ratio is porportional to 18/21? A.2/3 B. 30/35 C. 36/48 D.1/3
defon
You can solve this problem by applying the proccedure below:
 
 You have:
 
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 18x3/21x2
 36≠42 (2/3 is not proportinal to 18/21).
 
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 18x35/21x30
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8 0
3 years ago
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This is the equation of the line. You can convert it to slope intercept form:

y-4=\frac{1}{2}(x-2)\\y-4 = \frac{1}{2}x -1 \y=\frac{1}{2}x +3

8 0
3 years ago
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