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Margaret [11]
3 years ago
6

Completely factor each of the given polynomials. If a polynomial cannot be factored, write "not factorable."

Mathematics
1 answer:
Art [367]3 years ago
6 0
4x^2+23x+15=0
Δ=23^2-4*4*15=529-240=289

x1= (-23+17)/8=-6/8= -3/4
x2= (-23-17)/8=-5

4x^2+23x+15= 4(x+3/4)(x+5)=(4x+3)(x+5)
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if one card is drawn from a regular deck of cards, what is the probability the card will not be an ace?
satela [25.4K]

There are 52 cards in a deck of cards so that makes 52 your denominator. There are 4 aces in a deck of cards, so 52 - 4 = 48 making 48 your numerator. so the probability the card won't be an ace is 48 out of 52.

48/52 chance that the card will not be an ace.

Hope this helps you. :-)

4 0
3 years ago
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Helppppp please.. How do I do this?!? please and than you
Harman [31]

Answer:

  -7/3

Step-by-step explanation:

When finding slope from a graph, I always look for places where the graph crosses grid intersections. One of these is the y-intercept, (0, 40).

You have to go quite some distance to find another. It looks to me like the next grid crossing is at (30, -30). At this point, you can do either of two things:

  • find the ratio of grid squares
  • use the slope formula

What you want to calculate is the ratio of the change in vertical height (rise) to the change in horizontal distance (run). If you use grid squares, you need to make sure the grid has the same number of units horizontally as vertically. (Here a grid square is 10 units in each direction, so we're OK on that point.)

We have observed that the line falls 7 grid squares vertically for a change of 3 grid squares to the right. So, the slope using grid squares is ...

  m = rise/run = -7/3

Using the slope formula, we calculate the slope to be ...

  m = (y2 -y1)/(x2 -x1)

  m = (-30 -40)/(30 -0) = -70/30 = -7/3

The slope of the line is -7/3.

4 0
2 years ago
413:15 rezolvare completa cu rest
pav-90 [236]
The answer is 27.533333333..
8 0
3 years ago
amber makes 8.50 an hour working in a boutique. what is her gross pay if she works 38 hrs in a week?​
Elena-2011 [213]

The answer I think is 1615

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Anvisha [2.4K]
1 L = 1000 mL

1000 mL / 250mL = 4

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7 0
3 years ago
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