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ad-work [718]
3 years ago
14

What is the positive solution to this equation 4x^2+12x=135

Mathematics
1 answer:
Stels [109]3 years ago
5 0

Answer:

answer for the equation is 6.75

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7 :)

Step-by-step explanation:

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3 years ago
The sum of twice a number and 9 is 43
Irina-Kira [14]
2x + 9 = 43 This is the equation.
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3 years ago
The base diameter and the height of a cone are both
NeX [460]

Answer:

Step-by-step explanation:

volume of a cone is

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3 0
3 years ago
What is the area of the triangle?
ArbitrLikvidat [17]

9514 1404 393

Answer:

  7 square units

Step-by-step explanation:

There are several ways the area of triangle EBD can be found.

  • find the lengths EB, BD, DE and use Heron's formula (messy due to roots of roots being involved).
  • define point G at the lower left corner and subtract the areas of ∆DEG and BCD from trapezoid BCGE.
  • figure the area from the coordinates of the vertices.
  • use Pick's theorem and count the dots.

We choose the latter.

__

Pick's theorem says the area of a polygon can be found as ...

  A = i + b/2 -1

where i is the number of grid intersection points interior to the polygon, b is the number of grid points intersected by the border.

The attached figure shows the lines EB, BD, and DE intersect one point in addition to the vertices. So, b=4. A count of the red dots reveals 6 interior points (i=6). So, the area is ...

  A = 6 + (4/2) -1 = 7

The area of ∆EBD is 7 square units.

4 0
3 years ago
Leta has $45 in her account in May. How much money does she have in her account in August
wariber [46]
45-15= 30-28= 2+18=20
Is that what the question was asking??
5 0
3 years ago
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