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PtichkaEL [24]
4 years ago
11

Select ALL true statements about solving the equation : 4a - 5 = 10 - a

Mathematics
1 answer:
Flura [38]4 years ago
7 0

Answer:

1, 3, 4, and 7

Step-by-step explanation:

all of these are true

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Help ASAP please! Problem is on pictures below.
Elis [28]

Answer: figures C and D.


Explanation:


The question is which two figures have the same volume. Hence, you have to calculate the volumes of each figure until you find the two with the same volume.


1) Figure A. It is a slant cone.

Dimensions:

  • slant height, l = 6 cm
  • height, h: 5 cm
  • base area, b: 20 cm²

The volume of a slant cone is the same as the volume of a regular cone if the height and radius of both cones are the same.

Formula: V = (1/3)(base area)(height) = (1/3)b·h

Calculations:

  • V = (1/3)×20cm²×5cm = 100/3 cm³

2. Figure B. It is a right cylinder

Dimensions:

  • base area, b: 20 cm²
  • height, h: 6 cm

Formula: V = (base area)(height) = b·h

Calculations:

  • V = 20 cm²· 6cm = 120 cm³

3. Figure C. It is a slant cylinder.

Dimensions:

  • base area, b: 20 cm²
  • slant height, l: 6 cm
  • height, h: 5 cm

The volume of a slant cylinder is the same as the volume of a regular cylinder if the height and radius of both cylinders are the same.

Formula: V = (base area)(height) = b·h

Calculations:

  • V = 20cm² · 5cm = 100 cm³

4. Fiigure D. It is a rectangular pyramid.

Dimensions:

  • length, l: 6cm
  • base area, b: 20 cm²
  • height, h: 5 cm

Formula: V = (base area) (height) = b·h

Calculations:

  • V = 20 cm² · 5 cm = 100 cm³

→ Now,  you have found the two figures with the same volume: figure C and figure D. ←

7 0
4 years ago
According to the diagram, point B lies on how many faces of the pyramid?
Lina20 [59]

Answer:

A.1

Step-by-step explanation:

No other point is connect to those 4 lines

6 0
3 years ago
Which expression describes the representation given?
ser-zykov [4K]

Answer:

b.

Step-by-step explanation:

those are a lot of tabs

4 0
3 years ago
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Base 72; percentage 12
iVinArrow [24]

Answer:

16.67

Step-by-step explanation:

12 is what percent of 72? = 16.67

4 0
3 years ago
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I need help on this plz
Assoli18 [71]
I think it’s a had it before
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3 years ago
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