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Mrac [35]
3 years ago
8

Solve the equation (2y-6)(y+3)=0

Mathematics
2 answers:
Leokris [45]3 years ago
6 0
See the picture below

r-ruslan [8.4K]3 years ago
3 0

Answers :

y = 3

Step-by-step explanation:

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What is 9 over 10 as an decimal
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A right triangle has two legs with measure of 12 inches and 15 inches. Find the length of the hypotenuse to the nearest tenth of
Len [333]

Answer:

19 inches

Step-by-step explanation:

12^2+15^2=c^2

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3 years ago
What is 1 3/10 multiplied by 18??
Lelu [443]
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6 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
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