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Fynjy0 [20]
3 years ago
11

7. Evaluate this expression if x=-2* 3x2 - 4x

Mathematics
1 answer:
natali 33 [55]3 years ago
8 0

Answer: x=0 or x= -5/6

Step-by-step explanation: x=((−2)(3))(x2)−4x

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Simplify:<br> 3x3 (4x4 + 3y)
luda_lava [24]

Answer:

144+27y

Step-by-step explanation:

3x3(4x4+3y)

9(16+3y)

144+27y

5 0
3 years ago
What do they represent?
andrey2020 [161]

Answer:

A

Step-by-step explanation:

If you convert the first equation to y=mx+b form, it will be the same as the second equation.

6x - 15y = 15

-15y = -6x + 15

y = \frac{2}{5}x -1

Because the 2 equations are the same now, they are the same line.

8 0
3 years ago
Help please……..??.?.?.?.?.?
aleksklad [387]

9514 1404 393

Answer:

  c) 16,500 m³

  d) 277,088 mm³

  a) V = LWH

  b) V = πr²h

Step-by-step explanation:

The relevant volume formulas are ...

  • rectangular pyramid: V = 1/3LWH
  • cylinder: V = πr²h
  • rectangular prism: V = LWH

__

13c. The pyramid formula above tells us the volume is ...

  V = 1/3(60 m)(15 m)(55 m) = 16,500 m³

__

13d. The cylinder formula above tells us the volume is ...

  V = π(35 mm)²(72 mm) ≈ 277,088 mm³ ≈ 277 mL

__

14a. The shape appears to be a rectangular prism, so its volume is given by the formula ...

  V = LWH . . . . . where L, W, H represent the length, width, and height

__

14b. The volume of a cylinder is given by the formula ...

  V = πr²h . . . . . where r, h represent the radius and height (length)

7 0
3 years ago
Bharat has two identical ink pens with full ink. He used 3/4th of the ink from the first pen and 2/3rd of the ink from the secon
Leno4ka [110]

Answer:

0.58333333333 Or 0.58333333333/100000000000

Step-by-step explanation:

3 0
3 years ago
Write into expression take away 3 from x
Savatey [412]

The expression will be x-3.

5 0
3 years ago
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