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SpyIntel [72]
3 years ago
7

Which expression is equal to the polynomial below? 2x4 + 5x3 – 8x – 20 x3(2x + 5) + 4(2x – 5) x3(2x + 5) – 4(2x + 5) x3(2x – 5)

– 4(2x – 5) x3(2x + 5) + 4(2x + 5)
Mathematics
2 answers:
Agata [3.3K]3 years ago
8 0
When you group pairs of terms and factor each group, you get
  x³(2x + 5) – 4(2x + 5)
pishuonlain [190]3 years ago
6 0

Answer:

B) x^3(2x + 5) – 4(2x + 5)

Step-by-step explanation:

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Find the volume of a right circular cone that has a height of 15.2 cm and a base with a diameter of 11.9 cm. Round your answer t
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Answer:

  563.5 cm³

Step-by-step explanation:

Use the formula for the volume of a cone:

  V = (1/3)πr²h

Recognize that the radius is half the diameter:

  r = (11.9 cm)/2 = 5.95 cm

  V = (1/3)π(5.95 cm)²(15.2 cm) ≈ 563.516 cm³

The volume of the cone is about 563.5 cm³.

_____

<em>Additional comment</em>

If you use 3.14 for the value of π, then the result will be 563.2 cm³.

3 0
3 years ago
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3 years ago
13x + 5 + 17x -4.5 + x explain why this is wrong show your
alekssr [168]

The answerer is combining terms in x with constants

that is, 13x + 5 ≠ 18x

13x + 5 + 17x - 4.5 + x

= (13x + 17x + x ) + 5 - 4.5 ← collecting like terms

= 31x + 0.5 ← correct simplification





7 0
4 years ago
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Evaluate the function f(x) = 3x2− 2x for x= 4.
kykrilka [37]

Answer:

40

Step-by-step explanation:

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= 3(16) - 8

= 48 - 8

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when x=4, f(x) = 40

6 0
3 years ago
What is the lateral surface area of a rectangular prism in square inches.
natulia [17]

Answer:

When a prism has its bases facing up and down, the lateral area is the area of the vertical faces.

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The lateral area of a right prism can be calculated by multiplying the perimeter of the base by the height of the prism.

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