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Firlakuza [10]
2 years ago
6

If 18 is subtracted from twice the square of an integer, the

Mathematics
1 answer:
kherson [118]2 years ago
6 0

Answer:

-3/2

Step-by-step explanation:

Let x = the integer:

2x^2 - 18 = 9x

2x^2 - 9x - 18 = 0

Now either factor that or use the quadratic formula if you're lazy like me.

x = -3/2 and 6, so x must be 6 because it has to be an integer.

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one table sale has 75 cookies. Another table has 60 cupcakes. which table allows for more rectangular arrangements when all the
FrozenT [24]
This is asking which one has the most factors. Lets list them out:

75: 1,3,5,15,25,75
60: 1,2,3,4,5,6,10,12,15,20,30,60

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The answer is 60

Hope this helps!
3 0
3 years ago
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Papessa [141]
1 7/9-2/9=1 5/9

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8 0
3 years ago
The ratio of the sides of two similar octagons is 2:5. What is the ratio of the perimeters of these octagons?
Tom [10]
So we see the ratio of the sides of two similar octagons is 2:5 so let's say the first octagon has a side of 2 and the other has a side of 5. 2*8 = 16 and 5*8 = 40. 16:40 = 4:10 = and is again 2:5. So the answer is 2:5.
4 0
3 years ago
a line is perpendicular to y=-2x+5 and intersects the point (-4,2). what is the equation of this perpendicular line?
german

Answer:

y = 1/2x + 4

Step-by-step explanation:

If the line is perpendicular to y = -2x + 5 then the new line has a slope of 1/2.

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2 = 1/2(-4) + b

2 = -2 + b

4 = b

Put it all together

y = 1/2x + 4

6 0
3 years ago
You're given two side lengths of 3 centimeters and 5 centimeters. Which measurement can you use for the length of the third side
igomit [66]

Answer: To find the third side of a triangle (there are two answers you could get), you need to use the Pythagorean formula: a^2+b^2=c^2.  First answer, 3^2+5^2=c^2.  Solve for c.  c=5.83.  The second answer, 3^2+b^2=5^2.  Solve for b.  b=4.

\

5 0
3 years ago
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