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Masteriza [31]
3 years ago
12

Any math experts please factor this thank you have a blessed day

Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
5 0
56 + x - x^2
-x^2 + x + 56 Rewrite
x^2 - x - 56 Multiple whole equation by -1 to get positive x^2
(x-8)(x+7) Factor(-8 times 7=56, -8+7=-1)
x=8 x=-7 Put it equal to 0
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The line l is a tangent to the circle x^2+y^2=26 at the point A
vazorg [7]

Answer:

  65 square units

Step-by-step explanation:

Assuming point O refers to the origin, the segment OA has slope ...

  m = Δy/Δx = 5/1 = 5

Then the slope of the perpendicular line AP will be the negative reciprocal of this, -1/5.

The x-intercept of the line through (1, 5) with slope -1/5 can be found by setting y=0 in the point-slope equation for that line:

  y -k = m(x -h) . . . . . . line with slope m through point (h, k)

  0 -5 = (-1/5)(x -1)

  25 = x -1 . . . . . . . multiply by -5

  x = 26 . . . . . . . add 1

This means ΔOAP has a base length (OP) of 26 units and an altitude of 5 units. Its area is given by the formula ...

  A = 1/2bh

  A = 1/2(26)(5) = 65 . . . . square units

Triangle OAP has an area of 65 square units.

6 0
3 years ago
Probability, please help i will give brainliest
Cloud [144]

Answer:

Step-by-step explanation:

2 colours were taken

8 0
3 years ago
You want to buy three books that are on sale at 20% off. The original prices of the books are $2.50, $4.95, and $6.00. How much
Veseljchak [2.6K]

Answer:

$2.69

Step-by-step explanation:

The original prices of the books are $2.50, $4.95, and $6.00.

You want to buy three books that are on sale at 20% off (or 0.2 as decimal).

In total, you'll save:

0.2\cdot \$2.50+0.2\cdot \$4.95+0.2\cdot \$6

Uce distributive property:

0.2\cdot \$2.50+0.2\cdot \$4.95+0.2\cdot \$6\\ \\=0.2\cdot (\$2.50+\$4.95+\$6.00)\\ \\=0.2\cdot \$13.45\\ \\=\$2.69

5 0
3 years ago
...
anyanavicka [17]

Answer:

The hummingbird beats its wings 86 400 times in one hour.

Step-by-step explanation:

There are 60 minutes in an hour. There are 60 seconds in a minute.

1h = 60m

   = 60 × 60s

   = 3600s

1s = 24 times

3600s = 24 × 3600

           = 86 400 times

3 0
3 years ago
Tavon has a $50 gift card that loses $2 for each 30-day period it is not used. He also has a $40 gift card that loses $1.50 for
svp [43]

Answer:

20

Step-by-step explanation:

The first equation is 50 - 2x (because you start with $50 and subtract 2 for each 30 day period)

 

The second equation is 40-1.5x

 

Set them equal to each other:  50 - 2x = 40 - 1.5x

Solve for x:

 

50 - 2x = 40 - 1.5 x

    +2x         +2x

-----------------------

 

50 = 40 + 0.5 x

-40   -40

-------------------

10 = 0.5 x

20 = x

 

So there will be 20 30-day periods until the cards will be equal in value.

 

Check:  After 20 periods, 50 - 2(20) = $10 left

 

40 - 1.5(20) = also $10 left

6 0
3 years ago
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