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EleoNora [17]
3 years ago
10

What does 7x^2+12x-3 equal?

Mathematics
1 answer:
Ksenya-84 [330]3 years ago
8 0

Answer:

23

Step-by-step explanation:

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Find the height of a triangle that has an area of 54 cm2 with the width 3 cm less than its height.
iren2701 [21]

The height of a triangle is 9 cm

<h3>What is Triangle?</h3>
  • A polygon with three edges and three vertices is called a triangle. It is one of the fundamental geometric shapes. Triangle ABC is the display style for a triangle with vertices A, B, and C.
  • In Euclidean geometry, any three points that are not collinear produce a singular triangle and a singular plane (i.e. a two-dimensional Euclidean space).
  • In other words, every triangle is contained in a plane, and there is only one plane that contains that triangle.
  • All triangles are enclosed in a single plane if all of the geometry is the Euclidean plane, however, this is no longer true in higher-dimensional Euclidean spaces.
  • Except when otherwise specified, this article discusses triangles in Euclidean geometry, namely the Euclidean plane.

given that

let the height of the triangle be x

then the width is x-3

Area = \frac{height \times length}{2}

54 = x(x -3)

54 = x^2 -3x

x = 9

height = 9 cm

width = 6cm

Therefore, the height of a triangle is 9 cm.

To learn more about the triangle with the given link brainly.com/question/11897796

#SPJ4

8 0
1 year ago
Which estimate is closest to the actual value of (2.99548) ⋅ (1.8342)? CHOOSE ALL THAT APPLY!
docker41 [41]
I think B. Would be the correct one
5 0
2 years ago
Need help ASAP with this stuff
Mandarinka [93]
= xy√y +2xy^2√x+ xy<span>√y
= </span> 2xy√y + 2xy^2√x 

answer is B. second choice
2xy√y + 2xy^2√x 
7 0
3 years ago
What is the laterral surface area?
ch4aika [34]

Answer:

In other words, the surface area is the sum of all the areas of all the shapes that cover the surface of the object. On the other hand, the lateral surface area refers to the area of the sides of a shape , excluding its base and top area.

Step-by-step explanation:

6 0
3 years ago
What is the slope of the line that contains the points (-2, 7) and (2,3)
iVinArrow [24]

Answer:

C

Step-by-step explanation:

The correct answer is C, -1. This is because slope formula is y2-y1/x2-x1. When you put that in you get 3-7/2-(-2) which equals -4/4, or -1.

6 0
3 years ago
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