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8090 [49]
3 years ago
15

5x^2-5x-30=0 solve using quadratic

Mathematics
1 answer:
dangina [55]3 years ago
4 0

Answer:

=3

=−2

Step-by-step explanation:

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The price to ship a box varies directly as the weight of the box in pounds. A box that weighs 10 pounds costs $10.90 to ship.
nydimaria [60]
Well we can say 10.90/10 = the cost per pound to ship the item
we can infer this from the above text so
10.90/10 = 1.09.
So 1.09 * 37 = 40.33
$40.33
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7 0
4 years ago
In ABC, O is the centroid of the triangle and AO is 12.7 m. Find the length of OY and AY.​
ratelena [41]

Answer:

\boxed{OY = 6.35 m} \\\boxed{AY=19.05 m}

Step-by-step explanation:

The centroid of a triangle always cuts a triangle perfectly at 2/3.

What I mean by this is that the line that touches the tip of the triangle and touches the median of the base is cut into one third and its other part is cut into two thirds of the whole segment. This segment is AY.

Knowing this, I can tell that OY is 1/3 of the length of AO, which is given to be 12.7 m.

To find OY, make an equation where AO and OY add up to AY.

  • 12.7+\frac{1}{3} x=x

The variable x represents the length of AY, and 1/3x represents the length of OY (because it is one-third of AY).

Solve the equation by subtracting 1/3x from both sides.

  • 12.7=\frac{2}{3} x

Divide both sides by 2/3.

  • x=19.05

Now we know the length of AY (x). To find the length of OY substitute this value of x into 1/3x, which represents OY.

\frac{1}{3} (19.05)

This gives us 6.35, which is the length of OY.

The final answers are:

  • OY = 6.35 m
  • AY = 19.05 m
3 0
3 years ago
Find the slope of the line that passes through the two points<br> (-1,9) and (5,6)
frutty [35]

Answer:

-1/2

Step-by-step explanation:

use a graphing calculator or use slope formula.

was -3/6 but I reduced it

3 0
2 years ago
To print a telephone book,565 sheets of paper were used. If the book is 2.6 inches thick,what is the thickness of each sheet of
DIA [1.3K]
You divide the width of the book by the number of sheets of paper in order to get the thickness of each of the pieces of paper.
4 0
3 years ago
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Can someone figure this out with this hard math problem NO LINKS AND NO DOING IT JUST FOR THE POINTS will give brainliest to the
erica [24]

Answer:

down 4 right one

Step-by-step explanation:

7 0
3 years ago
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