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vlabodo [156]
3 years ago
11

Identify the polynomial written in ascending order. (1 point) 3x3− 5x2+ 4x − 7 −5x2+ 4x + 3x3− 7 −7 + 4x − 5x2+ 3x3 4x + 3x3− 7

− 5x2
Mathematics
2 answers:
marta [7]3 years ago
7 0

Keywords:

<em>Polynomial, identify, ascending order</em>

For this case, we must identify the polynomial that is written in ascending order. If we want to order a polynomial of ascending form, we must organize the polynomial from least to greatest exponent. By definition, a polynomial is of the form:

P (x) = ax ^ n + bx ^ {n-1} + ... + cx ^ 3 + dx ^ 2 + ex + f

Where:

a, b, c, d, e, f: They are the coefficients of the polynomial

n, n-1,3,2,1,0: They are the exponents. This polynomial is of degree "n", because "n" is the largest exponent.

x: It is the variable

Then, we must see among the options given a polynomial written from least to greatest exponent, that is, from the form:

P (x) = f + ex + dx ^ 2 + cx ^ 3 + ... + bx ^ {n-1} + ax ^ n

So, among the options we have:

Q (x) = - 7 + 4x-5x ^ 2 + 3x ^ 3 written ascending

Answer:

Option C

IgorC [24]3 years ago
3 0
-7 + 4x - 5x^2 + 3x^3....ascending means smallest to largest
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Nikitich [7]

9514 1404 393

Answer:

  a) 252 cm³, 252 cm², 705.6 g

  b) 240 cm³, 252 cm², 672 g

Step-by-step explanation:

The volume of each figure can be computed as the product of the base area (the side facing the viewer) and the "height" of the prism (the distance between bases).

The surface area of the prism is the sum of the two base areas and the "lateral area" consisting of the product of the base perimeter and the "height" of the prism.

The mass will be the product of volume and density.

__

ai) The base is a 3 cm by 8 cm rectangle together with a trapezoid with bases 3 cm and 6 cm, and height 7 - 3 = 4 cm.

  B = (3 cm)(8 cm) +(1/2)(3 cm +6 cm)(4 cm) = 24 cm² +18 cm² = 42 cm²

The "height" is 6 cm, so the volume is ...

  V = Bh = (42 cm²)(6 cm) = 252 cm³

__

aii) The perimeter of the base is the sum of its side lengths. Clockwise from left, the lengths are ...

  (8 +3 +2 +5 +3 +7) cm = 28 cm

Then the lateral area is ...

  LA = Ph = (28 cm)(6 cm) = 168 cm²

Adding this to the areas of the two bases, we get the total surface area:

  A = LA +2B = (168 cm²) + 2(42 cm²) = 252 cm²

__

aiii) The mass is the product of volume and density:

  M = ρV = (2.8 g/cm³)(252 cm³) = 705.6 g

____

bi) This trapezoidal prism has a base that has bases of 6 and 9 cm, and a height of 4 cm. The area of the base is ...

  B = (1/2)(b1 +b2)h = (1/2)(6 cm + 9cm)(4 cm) = 30 cm²

Then the volume is ...

  V = Bh = (30 cm²)(8 cm) = 240 cm³

__

bii) The lateral area is the perimeter of the base times the height of the prism:

  LA = Ph = (4 +6 +5 +9 cm)(8 cm) = 192 cm²

The total area is this area plus that of the two bases:

  A = LA +2B = (192 cm²) +2(30 cm²) = 252 cm²

__

biii) M = ρV = (2.8 g/cm³)(240 cm³) = 672 g

3 0
2 years ago
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